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Message-ID: <2023110809-blaming-scaling-c6ef@gregkh>
Date: Wed, 8 Nov 2023 11:46:09 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, jslaby@...e.cz,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: Linux 5.4.260
diff --git a/Makefile b/Makefile
index b30442d90389..24dc30cd2472 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 4
-SUBLEVEL = 259
+SUBLEVEL = 260
EXTRAVERSION =
NAME = Kleptomaniac Octopus
diff --git a/arch/arm/boot/dts/am335x-baltos.dtsi b/arch/arm/boot/dts/am335x-baltos.dtsi
index ee84155844ad..ed235f263e29 100644
--- a/arch/arm/boot/dts/am335x-baltos.dtsi
+++ b/arch/arm/boot/dts/am335x-baltos.dtsi
@@ -381,7 +381,7 @@
&mmc2 {
status = "okay";
vmmc-supply = <&wl12xx_vmmc>;
- non-removable;
+ ti,non-removable;
bus-width = <4>;
cap-power-off-card;
pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/am335x-boneblack-common.dtsi b/arch/arm/boot/dts/am335x-boneblack-common.dtsi
index dd932220a8bf..91f93bc89716 100644
--- a/arch/arm/boot/dts/am335x-boneblack-common.dtsi
+++ b/arch/arm/boot/dts/am335x-boneblack-common.dtsi
@@ -22,7 +22,6 @@
pinctrl-0 = <&emmc_pins>;
bus-width = <8>;
status = "okay";
- non-removable;
};
&am33xx_pinmux {
diff --git a/arch/arm/boot/dts/am335x-boneblack-wireless.dts b/arch/arm/boot/dts/am335x-boneblack-wireless.dts
index e07dd7979586..3124d94c0b3c 100644
--- a/arch/arm/boot/dts/am335x-boneblack-wireless.dts
+++ b/arch/arm/boot/dts/am335x-boneblack-wireless.dts
@@ -75,6 +75,7 @@
bus-width = <4>;
non-removable;
cap-power-off-card;
+ ti,needs-special-hs-handling;
keep-power-in-suspend;
pinctrl-names = "default";
pinctrl-0 = <&mmc3_pins &wl18xx_pins>;
diff --git a/arch/arm/boot/dts/am335x-boneblue.dts b/arch/arm/boot/dts/am335x-boneblue.dts
index 30b62de86b5b..2f6652ef9a15 100644
--- a/arch/arm/boot/dts/am335x-boneblue.dts
+++ b/arch/arm/boot/dts/am335x-boneblue.dts
@@ -389,6 +389,7 @@
bus-width = <4>;
non-removable;
cap-power-off-card;
+ ti,needs-special-hs-handling;
keep-power-in-suspend;
pinctrl-names = "default";
pinctrl-0 = <&mmc3_pins &wl18xx_pins>;
diff --git a/arch/arm/boot/dts/am335x-bonegreen-wireless.dts b/arch/arm/boot/dts/am335x-bonegreen-wireless.dts
index 609c8db687ec..4092cd193b8a 100644
--- a/arch/arm/boot/dts/am335x-bonegreen-wireless.dts
+++ b/arch/arm/boot/dts/am335x-bonegreen-wireless.dts
@@ -75,6 +75,7 @@
bus-width = <4>;
non-removable;
cap-power-off-card;
+ ti,needs-special-hs-handling;
keep-power-in-suspend;
pinctrl-names = "default";
pinctrl-0 = <&mmc3_pins &wl18xx_pins>;
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index af25b42e85f4..a00145705c9b 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -782,7 +782,8 @@
bus-width = <4>;
pinctrl-names = "default";
pinctrl-0 = <&mmc3_pins &wlan_pins>;
- non-removable;
+ ti,non-removable;
+ ti,needs-special-hs-handling;
cap-power-off-card;
keep-power-in-suspend;
diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index 7805b0618a4f..e28a5b82fdf3 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -700,7 +700,7 @@
&mmc2 {
status = "okay";
vmmc-supply = <&wl12xx_vmmc>;
- non-removable;
+ ti,non-removable;
bus-width = <4>;
cap-power-off-card;
keep-power-in-suspend;
diff --git a/arch/arm/boot/dts/am335x-lxm.dts b/arch/arm/boot/dts/am335x-lxm.dts
index c3bfd8ed5f88..a8005e975ea2 100644
--- a/arch/arm/boot/dts/am335x-lxm.dts
+++ b/arch/arm/boot/dts/am335x-lxm.dts
@@ -361,7 +361,7 @@
pinctrl-0 = <&emmc_pins>;
vmmc-supply = <&vmmcsd_fixed>;
bus-width = <8>;
- non-removable;
+ ti,non-removable;
status = "okay";
};
diff --git a/arch/arm/boot/dts/am335x-moxa-uc-2100-common.dtsi b/arch/arm/boot/dts/am335x-moxa-uc-2100-common.dtsi
index 7749122dad71..671d4a5da9c4 100644
--- a/arch/arm/boot/dts/am335x-moxa-uc-2100-common.dtsi
+++ b/arch/arm/boot/dts/am335x-moxa-uc-2100-common.dtsi
@@ -176,7 +176,7 @@
vmmc-supply = <&vmmcsd_fixed>;
bus-width = <8>;
pinctrl-0 = <&mmc1_pins_default>;
- non-removable;
+ ti,non-removable;
status = "okay";
};
diff --git a/arch/arm/boot/dts/am335x-moxa-uc-8100-me-t.dts b/arch/arm/boot/dts/am335x-moxa-uc-8100-me-t.dts
index 66a5c09ff388..783d411f2cef 100644
--- a/arch/arm/boot/dts/am335x-moxa-uc-8100-me-t.dts
+++ b/arch/arm/boot/dts/am335x-moxa-uc-8100-me-t.dts
@@ -473,7 +473,7 @@
vmmc-supply = <&vmmcsd_fixed>;
bus-width = <8>;
pinctrl-0 = <&mmc2_pins_default>;
- non-removable;
+ ti,non-removable;
status = "okay";
};
diff --git a/arch/arm/boot/dts/am335x-pepper.dts b/arch/arm/boot/dts/am335x-pepper.dts
index 03852eff2b3c..e7764ecdf65f 100644
--- a/arch/arm/boot/dts/am335x-pepper.dts
+++ b/arch/arm/boot/dts/am335x-pepper.dts
@@ -341,7 +341,7 @@
pinctrl-0 = <&emmc_pins>;
vmmc-supply = <&ldo3_reg>;
bus-width = <8>;
- non-removable;
+ ti,non-removable;
};
&mmc3 {
@@ -351,7 +351,7 @@
pinctrl-0 = <&wireless_pins>;
vmmmc-supply = <&v3v3c_reg>;
bus-width = <4>;
- non-removable;
+ ti,non-removable;
dmas = <&edma_xbar 12 0 1
&edma_xbar 13 0 2>;
dma-names = "tx", "rx";
diff --git a/arch/arm/boot/dts/am335x-phycore-som.dtsi b/arch/arm/boot/dts/am335x-phycore-som.dtsi
index 7e46b4c02709..3d0672b53d77 100644
--- a/arch/arm/boot/dts/am335x-phycore-som.dtsi
+++ b/arch/arm/boot/dts/am335x-phycore-som.dtsi
@@ -69,7 +69,7 @@
pinctrl-0 = <&emmc_pins>;
vmmc-supply = <&vmmc_reg>;
bus-width = <8>;
- non-removable;
+ ti,non-removable;
status = "disabled";
};
diff --git a/arch/arm/boot/dts/am33xx-l4.dtsi b/arch/arm/boot/dts/am33xx-l4.dtsi
index cacd564b4d28..8ec6c4500fd5 100644
--- a/arch/arm/boot/dts/am33xx-l4.dtsi
+++ b/arch/arm/boot/dts/am33xx-l4.dtsi
@@ -1333,8 +1333,10 @@
ranges = <0x0 0x60000 0x1000>;
mmc1: mmc@0 {
- compatible = "ti,am335-sdhci";
+ compatible = "ti,omap4-hsmmc";
+ ti,dual-volt;
ti,needs-special-reset;
+ ti,needs-special-hs-handling;
dmas = <&edma 24 0>, <&edma 25 0>;
dma-names = "tx", "rx";
interrupts = <64>;
@@ -1824,7 +1826,7 @@
ranges = <0x0 0xd8000 0x1000>;
mmc2: mmc@0 {
- compatible = "ti,am335-sdhci";
+ compatible = "ti,omap4-hsmmc";
ti,needs-special-reset;
dmas = <&edma 2 0
&edma 3 0>;
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index efe36f395bdd..77fa7c0f2104 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -259,11 +259,10 @@
ranges = <0x0 0x47810000 0x1000>;
mmc3: mmc@0 {
- compatible = "ti,am335-sdhci";
+ compatible = "ti,omap4-hsmmc";
ti,needs-special-reset;
interrupts = <29>;
reg = <0x0 0x1000>;
- status = "disabled";
};
};
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index c5b67993743d..14bbc438055f 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -250,11 +250,10 @@
ranges = <0x0 0x47810000 0x1000>;
mmc3: mmc@0 {
- compatible = "ti,am437-sdhci";
+ compatible = "ti,omap4-hsmmc";
ti,needs-special-reset;
interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
reg = <0x0 0x1000>;
- status = "disabled";
};
};
diff --git a/arch/arm/boot/dts/am437x-cm-t43.dts b/arch/arm/boot/dts/am437x-cm-t43.dts
index a6b4fca8626a..063113a5da2d 100644
--- a/arch/arm/boot/dts/am437x-cm-t43.dts
+++ b/arch/arm/boot/dts/am437x-cm-t43.dts
@@ -291,7 +291,7 @@
pinctrl-0 = <&emmc_pins>;
vmmc-supply = <&vmmc_3v3>;
bus-width = <8>;
- non-removable;
+ ti,non-removable;
};
&spi0 {
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 448853701d3d..126965a34841 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -872,7 +872,7 @@
pinctrl-names = "default", "sleep";
pinctrl-0 = <&emmc_pins_default>;
pinctrl-1 = <&emmc_pins_sleep>;
- non-removable;
+ ti,non-removable;
};
&mmc3 {
@@ -889,7 +889,7 @@
pinctrl-1 = <&mmc3_pins_sleep>;
cap-power-off-card;
keep-power-in-suspend;
- non-removable;
+ ti,non-removable;
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arm/boot/dts/am437x-l4.dtsi b/arch/arm/boot/dts/am437x-l4.dtsi
index 8c9e7e723fc9..64fdd5079d49 100644
--- a/arch/arm/boot/dts/am437x-l4.dtsi
+++ b/arch/arm/boot/dts/am437x-l4.dtsi
@@ -1104,8 +1104,9 @@
ranges = <0x0 0x60000 0x1000>;
mmc1: mmc@0 {
- compatible = "ti,am437-sdhci";
+ compatible = "ti,omap4-hsmmc";
reg = <0x0 0x1000>;
+ ti,dual-volt;
ti,needs-special-reset;
dmas = <&edma 24 0>,
<&edma 25 0>;
@@ -1640,7 +1641,7 @@
ranges = <0x0 0xd8000 0x1000>;
mmc2: mmc@0 {
- compatible = "ti,am437-sdhci";
+ compatible = "ti,omap4-hsmmc";
reg = <0x0 0x1000>;
ti,needs-special-reset;
dmas = <&edma 2 0>,
diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts
index 292153c6cb5d..74eaa6a3b258 100644
--- a/arch/arm/boot/dts/am437x-sk-evm.dts
+++ b/arch/arm/boot/dts/am437x-sk-evm.dts
@@ -694,7 +694,7 @@
pinctrl-1 = <&mmc3_pins_sleep>;
cap-power-off-card;
keep-power-in-suspend;
- non-removable;
+ ti,non-removable;
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c
index fbf66e0973aa..12b545f7fb32 100644
--- a/arch/arm64/kernel/armv8_deprecated.c
+++ b/arch/arm64/kernel/armv8_deprecated.c
@@ -208,10 +208,12 @@ static int emulation_proc_handler(struct ctl_table *table, int write,
loff_t *ppos)
{
int ret = 0;
- struct insn_emulation *insn = container_of(table->data, struct insn_emulation, current_mode);
- enum insn_emulation_mode prev_mode = insn->current_mode;
+ struct insn_emulation *insn;
+ enum insn_emulation_mode prev_mode;
mutex_lock(&insn_emulation_mutex);
+ insn = container_of(table->data, struct insn_emulation, current_mode);
+ prev_mode = insn->current_mode;
ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
if (ret || !write || prev_mode == insn->current_mode)
diff --git a/arch/x86/include/asm/i8259.h b/arch/x86/include/asm/i8259.h
index 89789e8c80f6..e16574c16e93 100644
--- a/arch/x86/include/asm/i8259.h
+++ b/arch/x86/include/asm/i8259.h
@@ -67,6 +67,8 @@ struct legacy_pic {
void (*make_irq)(unsigned int irq);
};
+void legacy_pic_pcat_compat(void);
+
extern struct legacy_pic *legacy_pic;
extern struct legacy_pic null_legacy_pic;
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index ed8ec011a9fd..e832082b2761 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -94,27 +94,16 @@ extern unsigned long _brk_end;
void *extend_brk(size_t size, size_t align);
/*
- * Reserve space in the brk section. The name must be unique within
- * the file, and somewhat descriptive. The size is in bytes. Must be
- * used at file scope.
+ * Reserve space in the .brk section, which is a block of memory from which the
+ * caller is allowed to allocate very early (before even memblock is available)
+ * by calling extend_brk(). All allocated memory will be eventually converted
+ * to memblock. Any leftover unallocated memory will be freed.
*
- * (This uses a temp function to wrap the asm so we can pass it the
- * size parameter; otherwise we wouldn't be able to. We can't use a
- * "section" attribute on a normal variable because it always ends up
- * being @progbits, which ends up allocating space in the vmlinux
- * executable.)
+ * The size is in bytes.
*/
-#define RESERVE_BRK(name,sz) \
- static void __section(.discard.text) __used notrace \
- __brk_reservation_fn_##name##__(void) { \
- asm volatile ( \
- ".pushsection .brk_reservation,\"aw\",@nobits;" \
- ".brk." #name ":" \
- " 1:.skip %c0;" \
- " .size .brk." #name ", . - 1b;" \
- " .popsection" \
- : : "i" (sz)); \
- }
+#define RESERVE_BRK(name, size) \
+ __section(.bss..brk) __aligned(1) __used \
+ static char __brk_##name[size]
/* Helper for reserving space for arrays of things */
#define RESERVE_BRK_ARRAY(type, name, entries) \
@@ -132,12 +121,19 @@ asmlinkage void __init x86_64_start_reservations(char *real_mode_data);
#endif /* __i386__ */
#endif /* _SETUP */
-#else
-#define RESERVE_BRK(name,sz) \
- .pushsection .brk_reservation,"aw",@nobits; \
-.brk.name: \
-1: .skip sz; \
- .size .brk.name,.-1b; \
+
+#else /* __ASSEMBLY */
+
+.macro __RESERVE_BRK name, size
+ .pushsection .bss..brk, "aw"
+SYM_DATA_START(__brk_\name)
+ .skip \size
+SYM_DATA_END(__brk_\name)
.popsection
+.endm
+
+#define RESERVE_BRK(name, size) __RESERVE_BRK name, size
+
#endif /* __ASSEMBLY__ */
+
#endif /* _ASM_X86_SETUP_H */
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 7b75658b7e9a..a5e41e66fcbd 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -140,6 +140,9 @@ static int __init acpi_parse_madt(struct acpi_table_header *table)
madt->address);
}
+ if (madt->flags & ACPI_MADT_PCAT_COMPAT)
+ legacy_pic_pcat_compat();
+
default_acpi_madt_oem_check(madt->header.oem_id,
madt->header.oem_table_id);
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index 8821d0ab0a08..82753622f489 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -32,6 +32,7 @@
*/
static void init_8259A(int auto_eoi);
+static bool pcat_compat __ro_after_init;
static int i8259A_auto_eoi;
DEFINE_RAW_SPINLOCK(i8259A_lock);
@@ -301,15 +302,32 @@ static void unmask_8259A(void)
static int probe_8259A(void)
{
+ unsigned char new_val, probe_val = ~(1 << PIC_CASCADE_IR);
unsigned long flags;
- unsigned char probe_val = ~(1 << PIC_CASCADE_IR);
- unsigned char new_val;
+
+ /*
+ * If MADT has the PCAT_COMPAT flag set, then do not bother probing
+ * for the PIC. Some BIOSes leave the PIC uninitialized and probing
+ * fails.
+ *
+ * Right now this causes problems as quite some code depends on
+ * nr_legacy_irqs() > 0 or has_legacy_pic() == true. This is silly
+ * when the system has an IO/APIC because then PIC is not required
+ * at all, except for really old machines where the timer interrupt
+ * must be routed through the PIC. So just pretend that the PIC is
+ * there and let legacy_pic->init() initialize it for nothing.
+ *
+ * Alternatively this could just try to initialize the PIC and
+ * repeat the probe, but for cases where there is no PIC that's
+ * just pointless.
+ */
+ if (pcat_compat)
+ return nr_legacy_irqs();
+
/*
- * Check to see if we have a PIC.
- * Mask all except the cascade and read
- * back the value we just wrote. If we don't
- * have a PIC, we will read 0xff as opposed to the
- * value we wrote.
+ * Check to see if we have a PIC. Mask all except the cascade and
+ * read back the value we just wrote. If we don't have a PIC, we
+ * will read 0xff as opposed to the value we wrote.
*/
raw_spin_lock_irqsave(&i8259A_lock, flags);
@@ -431,5 +449,9 @@ static int __init i8259A_init_ops(void)
return 0;
}
-
device_initcall(i8259A_init_ops);
+
+void __init legacy_pic_pcat_compat(void)
+{
+ pcat_compat = true;
+}
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 7e0e21082c93..09506e492f1d 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -383,7 +383,7 @@ SECTIONS
.brk : AT(ADDR(.brk) - LOAD_OFFSET) {
__brk_base = .;
. += 64 * 1024; /* 64k alignment slop space */
- *(.brk_reservation) /* areas brk users have reserved */
+ *(.bss..brk) /* areas brk users have reserved */
__brk_limit = .;
}
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 0d7631580150..36dac58b5c41 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -24,6 +24,7 @@
#include <linux/libata.h>
#include <linux/phy/phy.h>
#include <linux/regulator/consumer.h>
+#include <linux/bits.h>
/* Enclosure Management Control */
#define EM_CTRL_MSG_TYPE 0x000f0000
@@ -54,12 +55,12 @@ enum {
AHCI_PORT_PRIV_FBS_DMA_SZ = AHCI_CMD_SLOT_SZ +
AHCI_CMD_TBL_AR_SZ +
(AHCI_RX_FIS_SZ * 16),
- AHCI_IRQ_ON_SG = (1 << 31),
- AHCI_CMD_ATAPI = (1 << 5),
- AHCI_CMD_WRITE = (1 << 6),
- AHCI_CMD_PREFETCH = (1 << 7),
- AHCI_CMD_RESET = (1 << 8),
- AHCI_CMD_CLR_BUSY = (1 << 10),
+ AHCI_IRQ_ON_SG = BIT(31),
+ AHCI_CMD_ATAPI = BIT(5),
+ AHCI_CMD_WRITE = BIT(6),
+ AHCI_CMD_PREFETCH = BIT(7),
+ AHCI_CMD_RESET = BIT(8),
+ AHCI_CMD_CLR_BUSY = BIT(10),
RX_FIS_PIO_SETUP = 0x20, /* offset of PIO Setup FIS data */
RX_FIS_D2H_REG = 0x40, /* offset of D2H Register FIS data */
@@ -77,37 +78,37 @@ enum {
HOST_CAP2 = 0x24, /* host capabilities, extended */
/* HOST_CTL bits */
- HOST_RESET = (1 << 0), /* reset controller; self-clear */
- HOST_IRQ_EN = (1 << 1), /* global IRQ enable */
- HOST_MRSM = (1 << 2), /* MSI Revert to Single Message */
- HOST_AHCI_EN = (1 << 31), /* AHCI enabled */
+ HOST_RESET = BIT(0), /* reset controller; self-clear */
+ HOST_IRQ_EN = BIT(1), /* global IRQ enable */
+ HOST_MRSM = BIT(2), /* MSI Revert to Single Message */
+ HOST_AHCI_EN = BIT(31), /* AHCI enabled */
/* HOST_CAP bits */
- HOST_CAP_SXS = (1 << 5), /* Supports External SATA */
- HOST_CAP_EMS = (1 << 6), /* Enclosure Management support */
- HOST_CAP_CCC = (1 << 7), /* Command Completion Coalescing */
- HOST_CAP_PART = (1 << 13), /* Partial state capable */
- HOST_CAP_SSC = (1 << 14), /* Slumber state capable */
- HOST_CAP_PIO_MULTI = (1 << 15), /* PIO multiple DRQ support */
- HOST_CAP_FBS = (1 << 16), /* FIS-based switching support */
- HOST_CAP_PMP = (1 << 17), /* Port Multiplier support */
- HOST_CAP_ONLY = (1 << 18), /* Supports AHCI mode only */
- HOST_CAP_CLO = (1 << 24), /* Command List Override support */
- HOST_CAP_LED = (1 << 25), /* Supports activity LED */
- HOST_CAP_ALPM = (1 << 26), /* Aggressive Link PM support */
- HOST_CAP_SSS = (1 << 27), /* Staggered Spin-up */
- HOST_CAP_MPS = (1 << 28), /* Mechanical presence switch */
- HOST_CAP_SNTF = (1 << 29), /* SNotification register */
- HOST_CAP_NCQ = (1 << 30), /* Native Command Queueing */
- HOST_CAP_64 = (1 << 31), /* PCI DAC (64-bit DMA) support */
+ HOST_CAP_SXS = BIT(5), /* Supports External SATA */
+ HOST_CAP_EMS = BIT(6), /* Enclosure Management support */
+ HOST_CAP_CCC = BIT(7), /* Command Completion Coalescing */
+ HOST_CAP_PART = BIT(13), /* Partial state capable */
+ HOST_CAP_SSC = BIT(14), /* Slumber state capable */
+ HOST_CAP_PIO_MULTI = BIT(15), /* PIO multiple DRQ support */
+ HOST_CAP_FBS = BIT(16), /* FIS-based switching support */
+ HOST_CAP_PMP = BIT(17), /* Port Multiplier support */
+ HOST_CAP_ONLY = BIT(18), /* Supports AHCI mode only */
+ HOST_CAP_CLO = BIT(24), /* Command List Override support */
+ HOST_CAP_LED = BIT(25), /* Supports activity LED */
+ HOST_CAP_ALPM = BIT(26), /* Aggressive Link PM support */
+ HOST_CAP_SSS = BIT(27), /* Staggered Spin-up */
+ HOST_CAP_MPS = BIT(28), /* Mechanical presence switch */
+ HOST_CAP_SNTF = BIT(29), /* SNotification register */
+ HOST_CAP_NCQ = BIT(30), /* Native Command Queueing */
+ HOST_CAP_64 = BIT(31), /* PCI DAC (64-bit DMA) support */
/* HOST_CAP2 bits */
- HOST_CAP2_BOH = (1 << 0), /* BIOS/OS handoff supported */
- HOST_CAP2_NVMHCI = (1 << 1), /* NVMHCI supported */
- HOST_CAP2_APST = (1 << 2), /* Automatic partial to slumber */
- HOST_CAP2_SDS = (1 << 3), /* Support device sleep */
- HOST_CAP2_SADM = (1 << 4), /* Support aggressive DevSlp */
- HOST_CAP2_DESO = (1 << 5), /* DevSlp from slumber only */
+ HOST_CAP2_BOH = BIT(0), /* BIOS/OS handoff supported */
+ HOST_CAP2_NVMHCI = BIT(1), /* NVMHCI supported */
+ HOST_CAP2_APST = BIT(2), /* Automatic partial to slumber */
+ HOST_CAP2_SDS = BIT(3), /* Support device sleep */
+ HOST_CAP2_SADM = BIT(4), /* Support aggressive DevSlp */
+ HOST_CAP2_DESO = BIT(5), /* DevSlp from slumber only */
/* registers for each SATA port */
PORT_LST_ADDR = 0x00, /* command list DMA addr */
@@ -129,24 +130,24 @@ enum {
PORT_DEVSLP = 0x44, /* device sleep */
/* PORT_IRQ_{STAT,MASK} bits */
- PORT_IRQ_COLD_PRES = (1 << 31), /* cold presence detect */
- PORT_IRQ_TF_ERR = (1 << 30), /* task file error */
- PORT_IRQ_HBUS_ERR = (1 << 29), /* host bus fatal error */
- PORT_IRQ_HBUS_DATA_ERR = (1 << 28), /* host bus data error */
- PORT_IRQ_IF_ERR = (1 << 27), /* interface fatal error */
- PORT_IRQ_IF_NONFATAL = (1 << 26), /* interface non-fatal error */
- PORT_IRQ_OVERFLOW = (1 << 24), /* xfer exhausted available S/G */
- PORT_IRQ_BAD_PMP = (1 << 23), /* incorrect port multiplier */
-
- PORT_IRQ_PHYRDY = (1 << 22), /* PhyRdy changed */
- PORT_IRQ_DEV_ILCK = (1 << 7), /* device interlock */
- PORT_IRQ_CONNECT = (1 << 6), /* port connect change status */
- PORT_IRQ_SG_DONE = (1 << 5), /* descriptor processed */
- PORT_IRQ_UNK_FIS = (1 << 4), /* unknown FIS rx'd */
- PORT_IRQ_SDB_FIS = (1 << 3), /* Set Device Bits FIS rx'd */
- PORT_IRQ_DMAS_FIS = (1 << 2), /* DMA Setup FIS rx'd */
- PORT_IRQ_PIOS_FIS = (1 << 1), /* PIO Setup FIS rx'd */
- PORT_IRQ_D2H_REG_FIS = (1 << 0), /* D2H Register FIS rx'd */
+ PORT_IRQ_COLD_PRES = BIT(31), /* cold presence detect */
+ PORT_IRQ_TF_ERR = BIT(30), /* task file error */
+ PORT_IRQ_HBUS_ERR = BIT(29), /* host bus fatal error */
+ PORT_IRQ_HBUS_DATA_ERR = BIT(28), /* host bus data error */
+ PORT_IRQ_IF_ERR = BIT(27), /* interface fatal error */
+ PORT_IRQ_IF_NONFATAL = BIT(26), /* interface non-fatal error */
+ PORT_IRQ_OVERFLOW = BIT(24), /* xfer exhausted available S/G */
+ PORT_IRQ_BAD_PMP = BIT(23), /* incorrect port multiplier */
+
+ PORT_IRQ_PHYRDY = BIT(22), /* PhyRdy changed */
+ PORT_IRQ_DEV_ILCK = BIT(7), /* device interlock */
+ PORT_IRQ_CONNECT = BIT(6), /* port connect change status */
+ PORT_IRQ_SG_DONE = BIT(5), /* descriptor processed */
+ PORT_IRQ_UNK_FIS = BIT(4), /* unknown FIS rx'd */
+ PORT_IRQ_SDB_FIS = BIT(3), /* Set Device Bits FIS rx'd */
+ PORT_IRQ_DMAS_FIS = BIT(2), /* DMA Setup FIS rx'd */
+ PORT_IRQ_PIOS_FIS = BIT(1), /* PIO Setup FIS rx'd */
+ PORT_IRQ_D2H_REG_FIS = BIT(0), /* D2H Register FIS rx'd */
PORT_IRQ_FREEZE = PORT_IRQ_HBUS_ERR |
PORT_IRQ_IF_ERR |
@@ -162,34 +163,34 @@ enum {
PORT_IRQ_PIOS_FIS | PORT_IRQ_D2H_REG_FIS,
/* PORT_CMD bits */
- PORT_CMD_ASP = (1 << 27), /* Aggressive Slumber/Partial */
- PORT_CMD_ALPE = (1 << 26), /* Aggressive Link PM enable */
- PORT_CMD_ATAPI = (1 << 24), /* Device is ATAPI */
- PORT_CMD_FBSCP = (1 << 22), /* FBS Capable Port */
- PORT_CMD_ESP = (1 << 21), /* External Sata Port */
- PORT_CMD_HPCP = (1 << 18), /* HotPlug Capable Port */
- PORT_CMD_PMP = (1 << 17), /* PMP attached */
- PORT_CMD_LIST_ON = (1 << 15), /* cmd list DMA engine running */
- PORT_CMD_FIS_ON = (1 << 14), /* FIS DMA engine running */
- PORT_CMD_FIS_RX = (1 << 4), /* Enable FIS receive DMA engine */
- PORT_CMD_CLO = (1 << 3), /* Command list override */
- PORT_CMD_POWER_ON = (1 << 2), /* Power up device */
- PORT_CMD_SPIN_UP = (1 << 1), /* Spin up device */
- PORT_CMD_START = (1 << 0), /* Enable port DMA engine */
-
- PORT_CMD_ICC_MASK = (0xf << 28), /* i/f ICC state mask */
- PORT_CMD_ICC_ACTIVE = (0x1 << 28), /* Put i/f in active state */
- PORT_CMD_ICC_PARTIAL = (0x2 << 28), /* Put i/f in partial state */
- PORT_CMD_ICC_SLUMBER = (0x6 << 28), /* Put i/f in slumber state */
+ PORT_CMD_ASP = BIT(27), /* Aggressive Slumber/Partial */
+ PORT_CMD_ALPE = BIT(26), /* Aggressive Link PM enable */
+ PORT_CMD_ATAPI = BIT(24), /* Device is ATAPI */
+ PORT_CMD_FBSCP = BIT(22), /* FBS Capable Port */
+ PORT_CMD_ESP = BIT(21), /* External Sata Port */
+ PORT_CMD_HPCP = BIT(18), /* HotPlug Capable Port */
+ PORT_CMD_PMP = BIT(17), /* PMP attached */
+ PORT_CMD_LIST_ON = BIT(15), /* cmd list DMA engine running */
+ PORT_CMD_FIS_ON = BIT(14), /* FIS DMA engine running */
+ PORT_CMD_FIS_RX = BIT(4), /* Enable FIS receive DMA engine */
+ PORT_CMD_CLO = BIT(3), /* Command list override */
+ PORT_CMD_POWER_ON = BIT(2), /* Power up device */
+ PORT_CMD_SPIN_UP = BIT(1), /* Spin up device */
+ PORT_CMD_START = BIT(0), /* Enable port DMA engine */
+
+ PORT_CMD_ICC_MASK = (0xfu << 28), /* i/f ICC state mask */
+ PORT_CMD_ICC_ACTIVE = (0x1u << 28), /* Put i/f in active state */
+ PORT_CMD_ICC_PARTIAL = (0x2u << 28), /* Put i/f in partial state */
+ PORT_CMD_ICC_SLUMBER = (0x6u << 28), /* Put i/f in slumber state */
/* PORT_FBS bits */
PORT_FBS_DWE_OFFSET = 16, /* FBS device with error offset */
PORT_FBS_ADO_OFFSET = 12, /* FBS active dev optimization offset */
PORT_FBS_DEV_OFFSET = 8, /* FBS device to issue offset */
PORT_FBS_DEV_MASK = (0xf << PORT_FBS_DEV_OFFSET), /* FBS.DEV */
- PORT_FBS_SDE = (1 << 2), /* FBS single device error */
- PORT_FBS_DEC = (1 << 1), /* FBS device error clear */
- PORT_FBS_EN = (1 << 0), /* Enable FBS */
+ PORT_FBS_SDE = BIT(2), /* FBS single device error */
+ PORT_FBS_DEC = BIT(1), /* FBS device error clear */
+ PORT_FBS_EN = BIT(0), /* Enable FBS */
/* PORT_DEVSLP bits */
PORT_DEVSLP_DM_OFFSET = 25, /* DITO multiplier offset */
@@ -197,52 +198,52 @@ enum {
PORT_DEVSLP_DITO_OFFSET = 15, /* DITO offset */
PORT_DEVSLP_MDAT_OFFSET = 10, /* Minimum assertion time */
PORT_DEVSLP_DETO_OFFSET = 2, /* DevSlp exit timeout */
- PORT_DEVSLP_DSP = (1 << 1), /* DevSlp present */
- PORT_DEVSLP_ADSE = (1 << 0), /* Aggressive DevSlp enable */
+ PORT_DEVSLP_DSP = BIT(1), /* DevSlp present */
+ PORT_DEVSLP_ADSE = BIT(0), /* Aggressive DevSlp enable */
/* hpriv->flags bits */
#define AHCI_HFLAGS(flags) .private_data = (void *)(flags)
- AHCI_HFLAG_NO_NCQ = (1 << 0),
- AHCI_HFLAG_IGN_IRQ_IF_ERR = (1 << 1), /* ignore IRQ_IF_ERR */
- AHCI_HFLAG_IGN_SERR_INTERNAL = (1 << 2), /* ignore SERR_INTERNAL */
- AHCI_HFLAG_32BIT_ONLY = (1 << 3), /* force 32bit */
- AHCI_HFLAG_MV_PATA = (1 << 4), /* PATA port */
- AHCI_HFLAG_NO_MSI = (1 << 5), /* no PCI MSI */
- AHCI_HFLAG_NO_PMP = (1 << 6), /* no PMP */
- AHCI_HFLAG_SECT255 = (1 << 8), /* max 255 sectors */
- AHCI_HFLAG_YES_NCQ = (1 << 9), /* force NCQ cap on */
- AHCI_HFLAG_NO_SUSPEND = (1 << 10), /* don't suspend */
- AHCI_HFLAG_SRST_TOUT_IS_OFFLINE = (1 << 11), /* treat SRST timeout as
- link offline */
- AHCI_HFLAG_NO_SNTF = (1 << 12), /* no sntf */
- AHCI_HFLAG_NO_FPDMA_AA = (1 << 13), /* no FPDMA AA */
- AHCI_HFLAG_YES_FBS = (1 << 14), /* force FBS cap on */
- AHCI_HFLAG_DELAY_ENGINE = (1 << 15), /* do not start engine on
- port start (wait until
- error-handling stage) */
- AHCI_HFLAG_NO_DEVSLP = (1 << 17), /* no device sleep */
- AHCI_HFLAG_NO_FBS = (1 << 18), /* no FBS */
+ AHCI_HFLAG_NO_NCQ = BIT(0),
+ AHCI_HFLAG_IGN_IRQ_IF_ERR = BIT(1), /* ignore IRQ_IF_ERR */
+ AHCI_HFLAG_IGN_SERR_INTERNAL = BIT(2), /* ignore SERR_INTERNAL */
+ AHCI_HFLAG_32BIT_ONLY = BIT(3), /* force 32bit */
+ AHCI_HFLAG_MV_PATA = BIT(4), /* PATA port */
+ AHCI_HFLAG_NO_MSI = BIT(5), /* no PCI MSI */
+ AHCI_HFLAG_NO_PMP = BIT(6), /* no PMP */
+ AHCI_HFLAG_SECT255 = BIT(8), /* max 255 sectors */
+ AHCI_HFLAG_YES_NCQ = BIT(9), /* force NCQ cap on */
+ AHCI_HFLAG_NO_SUSPEND = BIT(10), /* don't suspend */
+ AHCI_HFLAG_SRST_TOUT_IS_OFFLINE = BIT(11), /* treat SRST timeout as
+ link offline */
+ AHCI_HFLAG_NO_SNTF = BIT(12), /* no sntf */
+ AHCI_HFLAG_NO_FPDMA_AA = BIT(13), /* no FPDMA AA */
+ AHCI_HFLAG_YES_FBS = BIT(14), /* force FBS cap on */
+ AHCI_HFLAG_DELAY_ENGINE = BIT(15), /* do not start engine on
+ port start (wait until
+ error-handling stage) */
+ AHCI_HFLAG_NO_DEVSLP = BIT(17), /* no device sleep */
+ AHCI_HFLAG_NO_FBS = BIT(18), /* no FBS */
#ifdef CONFIG_PCI_MSI
- AHCI_HFLAG_MULTI_MSI = (1 << 20), /* per-port MSI(-X) */
+ AHCI_HFLAG_MULTI_MSI = BIT(20), /* per-port MSI(-X) */
#else
/* compile out MSI infrastructure */
AHCI_HFLAG_MULTI_MSI = 0,
#endif
- AHCI_HFLAG_WAKE_BEFORE_STOP = (1 << 22), /* wake before DMA stop */
- AHCI_HFLAG_YES_ALPM = (1 << 23), /* force ALPM cap on */
- AHCI_HFLAG_NO_WRITE_TO_RO = (1 << 24), /* don't write to read
- only registers */
- AHCI_HFLAG_IS_MOBILE = (1 << 25), /* mobile chipset, use
- SATA_MOBILE_LPM_POLICY
- as default lpm_policy */
- AHCI_HFLAG_SUSPEND_PHYS = (1 << 26), /* handle PHYs during
- suspend/resume */
- AHCI_HFLAG_IGN_NOTSUPP_POWER_ON = (1 << 27), /* ignore -EOPNOTSUPP
- from phy_power_on() */
- AHCI_HFLAG_NO_SXS = (1 << 28), /* SXS not supported */
+ AHCI_HFLAG_WAKE_BEFORE_STOP = BIT(22), /* wake before DMA stop */
+ AHCI_HFLAG_YES_ALPM = BIT(23), /* force ALPM cap on */
+ AHCI_HFLAG_NO_WRITE_TO_RO = BIT(24), /* don't write to read
+ only registers */
+ AHCI_HFLAG_IS_MOBILE = BIT(25), /* mobile chipset, use
+ SATA_MOBILE_LPM_POLICY
+ as default lpm_policy */
+ AHCI_HFLAG_SUSPEND_PHYS = BIT(26), /* handle PHYs during
+ suspend/resume */
+ AHCI_HFLAG_IGN_NOTSUPP_POWER_ON = BIT(27), /* ignore -EOPNOTSUPP
+ from phy_power_on() */
+ AHCI_HFLAG_NO_SXS = BIT(28), /* SXS not supported */
/* ap->flags bits */
@@ -258,22 +259,22 @@ enum {
EM_MAX_RETRY = 5,
/* em_ctl bits */
- EM_CTL_RST = (1 << 9), /* Reset */
- EM_CTL_TM = (1 << 8), /* Transmit Message */
- EM_CTL_MR = (1 << 0), /* Message Received */
- EM_CTL_ALHD = (1 << 26), /* Activity LED */
- EM_CTL_XMT = (1 << 25), /* Transmit Only */
- EM_CTL_SMB = (1 << 24), /* Single Message Buffer */
- EM_CTL_SGPIO = (1 << 19), /* SGPIO messages supported */
- EM_CTL_SES = (1 << 18), /* SES-2 messages supported */
- EM_CTL_SAFTE = (1 << 17), /* SAF-TE messages supported */
- EM_CTL_LED = (1 << 16), /* LED messages supported */
+ EM_CTL_RST = BIT(9), /* Reset */
+ EM_CTL_TM = BIT(8), /* Transmit Message */
+ EM_CTL_MR = BIT(0), /* Message Received */
+ EM_CTL_ALHD = BIT(26), /* Activity LED */
+ EM_CTL_XMT = BIT(25), /* Transmit Only */
+ EM_CTL_SMB = BIT(24), /* Single Message Buffer */
+ EM_CTL_SGPIO = BIT(19), /* SGPIO messages supported */
+ EM_CTL_SES = BIT(18), /* SES-2 messages supported */
+ EM_CTL_SAFTE = BIT(17), /* SAF-TE messages supported */
+ EM_CTL_LED = BIT(16), /* LED messages supported */
/* em message type */
- EM_MSG_TYPE_LED = (1 << 0), /* LED */
- EM_MSG_TYPE_SAFTE = (1 << 1), /* SAF-TE */
- EM_MSG_TYPE_SES2 = (1 << 2), /* SES-2 */
- EM_MSG_TYPE_SGPIO = (1 << 3), /* SGPIO */
+ EM_MSG_TYPE_LED = BIT(0), /* LED */
+ EM_MSG_TYPE_SAFTE = BIT(1), /* SAF-TE */
+ EM_MSG_TYPE_SES2 = BIT(2), /* SES-2 */
+ EM_MSG_TYPE_SGPIO = BIT(3), /* SGPIO */
};
struct ahci_cmd_hdr {
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index 4e5ca632f35e..ef14566a4971 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -29,6 +29,75 @@ static struct device *next_device(struct klist_iter *i)
return dev;
}
+/**
+ * driver_set_override() - Helper to set or clear driver override.
+ * @dev: Device to change
+ * @override: Address of string to change (e.g. &device->driver_override);
+ * The contents will be freed and hold newly allocated override.
+ * @s: NUL-terminated string, new driver name to force a match, pass empty
+ * string to clear it ("" or "\n", where the latter is only for sysfs
+ * interface).
+ * @len: length of @s
+ *
+ * Helper to set or clear driver override in a device, intended for the cases
+ * when the driver_override field is allocated by driver/bus code.
+ *
+ * Returns: 0 on success or a negative error code on failure.
+ */
+int driver_set_override(struct device *dev, const char **override,
+ const char *s, size_t len)
+{
+ const char *new, *old;
+ char *cp;
+
+ if (!override || !s)
+ return -EINVAL;
+
+ /*
+ * The stored value will be used in sysfs show callback (sysfs_emit()),
+ * which has a length limit of PAGE_SIZE and adds a trailing newline.
+ * Thus we can store one character less to avoid truncation during sysfs
+ * show.
+ */
+ if (len >= (PAGE_SIZE - 1))
+ return -EINVAL;
+
+ if (!len) {
+ /* Empty string passed - clear override */
+ device_lock(dev);
+ old = *override;
+ *override = NULL;
+ device_unlock(dev);
+ kfree(old);
+
+ return 0;
+ }
+
+ cp = strnchr(s, len, '\n');
+ if (cp)
+ len = cp - s;
+
+ new = kstrndup(s, len, GFP_KERNEL);
+ if (!new)
+ return -ENOMEM;
+
+ device_lock(dev);
+ old = *override;
+ if (cp != s) {
+ *override = new;
+ } else {
+ /* "\n" passed - clear override */
+ kfree(new);
+ *override = NULL;
+ }
+ device_unlock(dev);
+
+ kfree(old);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(driver_set_override);
+
/**
* driver_for_each_device - Iterator for devices bound to a driver.
* @drv: Driver we're iterating.
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 75623b914b8c..0ed43d185a90 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -973,31 +973,11 @@ static ssize_t driver_override_store(struct device *dev,
const char *buf, size_t count)
{
struct platform_device *pdev = to_platform_device(dev);
- char *driver_override, *old, *cp;
-
- /* We need to keep extra room for a newline */
- if (count >= (PAGE_SIZE - 1))
- return -EINVAL;
-
- driver_override = kstrndup(buf, count, GFP_KERNEL);
- if (!driver_override)
- return -ENOMEM;
-
- cp = strchr(driver_override, '\n');
- if (cp)
- *cp = '\0';
-
- device_lock(dev);
- old = pdev->driver_override;
- if (strlen(driver_override)) {
- pdev->driver_override = driver_override;
- } else {
- kfree(driver_override);
- pdev->driver_override = NULL;
- }
- device_unlock(dev);
+ int ret;
- kfree(old);
+ ret = driver_set_override(dev, &pdev->driver_override, buf, count);
+ if (ret)
+ return ret;
return count;
}
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 8a08cbb958d1..c867211f5ed7 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -299,15 +299,6 @@ config BLK_DEV_SKD
Use device /dev/skd$N amd /dev/skd$Np$M.
-config BLK_DEV_SX8
- tristate "Promise SATA SX8 support"
- depends on PCI
- ---help---
- Saying Y or M here will enable support for the
- Promise SATA SX8 controllers.
-
- Use devices /dev/sx8/$N and /dev/sx8/$Np$M.
-
config BLK_DEV_RAM
tristate "RAM block device support"
---help---
diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index a53cc1e3a2d3..d8f2f72c3b62 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -26,8 +26,6 @@ obj-$(CONFIG_BLK_DEV_NBD) += nbd.o
obj-$(CONFIG_BLK_DEV_CRYPTOLOOP) += cryptoloop.o
obj-$(CONFIG_VIRTIO_BLK) += virtio_blk.o
-obj-$(CONFIG_BLK_DEV_SX8) += sx8.o
-
obj-$(CONFIG_XEN_BLKDEV_FRONTEND) += xen-blkfront.o
obj-$(CONFIG_XEN_BLKDEV_BACKEND) += xen-blkback/
obj-$(CONFIG_BLK_DEV_DRBD) += drbd/
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
deleted file mode 100644
index 4478eb7efee0..000000000000
--- a/drivers/block/sx8.c
+++ /dev/null
@@ -1,1586 +0,0 @@
-/*
- * sx8.c: Driver for Promise SATA SX8 looks-like-I2O hardware
- *
- * Copyright 2004-2005 Red Hat, Inc.
- *
- * Author/maintainer: Jeff Garzik <jgarzik@...ox.com>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/blk-mq.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/compiler.h>
-#include <linux/workqueue.h>
-#include <linux/bitops.h>
-#include <linux/delay.h>
-#include <linux/ktime.h>
-#include <linux/hdreg.h>
-#include <linux/dma-mapping.h>
-#include <linux/completion.h>
-#include <linux/scatterlist.h>
-#include <asm/io.h>
-#include <linux/uaccess.h>
-
-#if 0
-#define CARM_DEBUG
-#define CARM_VERBOSE_DEBUG
-#else
-#undef CARM_DEBUG
-#undef CARM_VERBOSE_DEBUG
-#endif
-#undef CARM_NDEBUG
-
-#define DRV_NAME "sx8"
-#define DRV_VERSION "1.0"
-#define PFX DRV_NAME ": "
-
-MODULE_AUTHOR("Jeff Garzik");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Promise SATA SX8 block driver");
-MODULE_VERSION(DRV_VERSION);
-
-/*
- * SX8 hardware has a single message queue for all ATA ports.
- * When this driver was written, the hardware (firmware?) would
- * corrupt data eventually, if more than one request was outstanding.
- * As one can imagine, having 8 ports bottlenecking on a single
- * command hurts performance.
- *
- * Based on user reports, later versions of the hardware (firmware?)
- * seem to be able to survive with more than one command queued.
- *
- * Therefore, we default to the safe option -- 1 command -- but
- * allow the user to increase this.
- *
- * SX8 should be able to support up to ~60 queued commands (CARM_MAX_REQ),
- * but problems seem to occur when you exceed ~30, even on newer hardware.
- */
-static int max_queue = 1;
-module_param(max_queue, int, 0444);
-MODULE_PARM_DESC(max_queue, "Maximum number of queued commands. (min==1, max==30, safe==1)");
-
-
-#define NEXT_RESP(idx) ((idx + 1) % RMSG_Q_LEN)
-
-/* 0xf is just arbitrary, non-zero noise; this is sorta like poisoning */
-#define TAG_ENCODE(tag) (((tag) << 16) | 0xf)
-#define TAG_DECODE(tag) (((tag) >> 16) & 0x1f)
-#define TAG_VALID(tag) ((((tag) & 0xf) == 0xf) && (TAG_DECODE(tag) < 32))
-
-/* note: prints function name for you */
-#ifdef CARM_DEBUG
-#define DPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args)
-#ifdef CARM_VERBOSE_DEBUG
-#define VPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args)
-#else
-#define VPRINTK(fmt, args...)
-#endif /* CARM_VERBOSE_DEBUG */
-#else
-#define DPRINTK(fmt, args...)
-#define VPRINTK(fmt, args...)
-#endif /* CARM_DEBUG */
-
-#ifdef CARM_NDEBUG
-#define assert(expr)
-#else
-#define assert(expr) \
- if(unlikely(!(expr))) { \
- printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \
- #expr, __FILE__, __func__, __LINE__); \
- }
-#endif
-
-/* defines only for the constants which don't work well as enums */
-struct carm_host;
-
-enum {
- /* adapter-wide limits */
- CARM_MAX_PORTS = 8,
- CARM_SHM_SIZE = (4096 << 7),
- CARM_MINORS_PER_MAJOR = 256 / CARM_MAX_PORTS,
- CARM_MAX_WAIT_Q = CARM_MAX_PORTS + 1,
-
- /* command message queue limits */
- CARM_MAX_REQ = 64, /* max command msgs per host */
- CARM_MSG_LOW_WATER = (CARM_MAX_REQ / 4), /* refill mark */
-
- /* S/G limits, host-wide and per-request */
- CARM_MAX_REQ_SG = 32, /* max s/g entries per request */
- CARM_MAX_HOST_SG = 600, /* max s/g entries per host */
- CARM_SG_LOW_WATER = (CARM_MAX_HOST_SG / 4), /* re-fill mark */
-
- /* hardware registers */
- CARM_IHQP = 0x1c,
- CARM_INT_STAT = 0x10, /* interrupt status */
- CARM_INT_MASK = 0x14, /* interrupt mask */
- CARM_HMUC = 0x18, /* host message unit control */
- RBUF_ADDR_LO = 0x20, /* response msg DMA buf low 32 bits */
- RBUF_ADDR_HI = 0x24, /* response msg DMA buf high 32 bits */
- RBUF_BYTE_SZ = 0x28,
- CARM_RESP_IDX = 0x2c,
- CARM_CMS0 = 0x30, /* command message size reg 0 */
- CARM_LMUC = 0x48,
- CARM_HMPHA = 0x6c,
- CARM_INITC = 0xb5,
-
- /* bits in CARM_INT_{STAT,MASK} */
- INT_RESERVED = 0xfffffff0,
- INT_WATCHDOG = (1 << 3), /* watchdog timer */
- INT_Q_OVERFLOW = (1 << 2), /* cmd msg q overflow */
- INT_Q_AVAILABLE = (1 << 1), /* cmd msg q has free space */
- INT_RESPONSE = (1 << 0), /* response msg available */
- INT_ACK_MASK = INT_WATCHDOG | INT_Q_OVERFLOW,
- INT_DEF_MASK = INT_RESERVED | INT_Q_OVERFLOW |
- INT_RESPONSE,
-
- /* command messages, and related register bits */
- CARM_HAVE_RESP = 0x01,
- CARM_MSG_READ = 1,
- CARM_MSG_WRITE = 2,
- CARM_MSG_VERIFY = 3,
- CARM_MSG_GET_CAPACITY = 4,
- CARM_MSG_FLUSH = 5,
- CARM_MSG_IOCTL = 6,
- CARM_MSG_ARRAY = 8,
- CARM_MSG_MISC = 9,
- CARM_CME = (1 << 2),
- CARM_RME = (1 << 1),
- CARM_WZBC = (1 << 0),
- CARM_RMI = (1 << 0),
- CARM_Q_FULL = (1 << 3),
- CARM_MSG_SIZE = 288,
- CARM_Q_LEN = 48,
-
- /* CARM_MSG_IOCTL messages */
- CARM_IOC_SCAN_CHAN = 5, /* scan channels for devices */
- CARM_IOC_GET_TCQ = 13, /* get tcq/ncq depth */
- CARM_IOC_SET_TCQ = 14, /* set tcq/ncq depth */
-
- IOC_SCAN_CHAN_NODEV = 0x1f,
- IOC_SCAN_CHAN_OFFSET = 0x40,
-
- /* CARM_MSG_ARRAY messages */
- CARM_ARRAY_INFO = 0,
-
- ARRAY_NO_EXIST = (1 << 31),
-
- /* response messages */
- RMSG_SZ = 8, /* sizeof(struct carm_response) */
- RMSG_Q_LEN = 48, /* resp. msg list length */
- RMSG_OK = 1, /* bit indicating msg was successful */
- /* length of entire resp. msg buffer */
- RBUF_LEN = RMSG_SZ * RMSG_Q_LEN,
-
- PDC_SHM_SIZE = (4096 << 7), /* length of entire h/w buffer */
-
- /* CARM_MSG_MISC messages */
- MISC_GET_FW_VER = 2,
- MISC_ALLOC_MEM = 3,
- MISC_SET_TIME = 5,
-
- /* MISC_GET_FW_VER feature bits */
- FW_VER_4PORT = (1 << 2), /* 1=4 ports, 0=8 ports */
- FW_VER_NON_RAID = (1 << 1), /* 1=non-RAID firmware, 0=RAID */
- FW_VER_ZCR = (1 << 0), /* zero channel RAID (whatever that is) */
-
- /* carm_host flags */
- FL_NON_RAID = FW_VER_NON_RAID,
- FL_4PORT = FW_VER_4PORT,
- FL_FW_VER_MASK = (FW_VER_NON_RAID | FW_VER_4PORT),
- FL_DYN_MAJOR = (1 << 17),
-};
-
-enum {
- CARM_SG_BOUNDARY = 0xffffUL, /* s/g segment boundary */
-};
-
-enum scatter_gather_types {
- SGT_32BIT = 0,
- SGT_64BIT = 1,
-};
-
-enum host_states {
- HST_INVALID, /* invalid state; never used */
- HST_ALLOC_BUF, /* setting up master SHM area */
- HST_ERROR, /* we never leave here */
- HST_PORT_SCAN, /* start dev scan */
- HST_DEV_SCAN_START, /* start per-device probe */
- HST_DEV_SCAN, /* continue per-device probe */
- HST_DEV_ACTIVATE, /* activate devices we found */
- HST_PROBE_FINISHED, /* probe is complete */
- HST_PROBE_START, /* initiate probe */
- HST_SYNC_TIME, /* tell firmware what time it is */
- HST_GET_FW_VER, /* get firmware version, adapter port cnt */
-};
-
-#ifdef CARM_DEBUG
-static const char *state_name[] = {
- "HST_INVALID",
- "HST_ALLOC_BUF",
- "HST_ERROR",
- "HST_PORT_SCAN",
- "HST_DEV_SCAN_START",
- "HST_DEV_SCAN",
- "HST_DEV_ACTIVATE",
- "HST_PROBE_FINISHED",
- "HST_PROBE_START",
- "HST_SYNC_TIME",
- "HST_GET_FW_VER",
-};
-#endif
-
-struct carm_port {
- unsigned int port_no;
- struct gendisk *disk;
- struct carm_host *host;
-
- /* attached device characteristics */
- u64 capacity;
- char name[41];
- u16 dev_geom_head;
- u16 dev_geom_sect;
- u16 dev_geom_cyl;
-};
-
-struct carm_request {
- int n_elem;
- unsigned int msg_type;
- unsigned int msg_subtype;
- unsigned int msg_bucket;
- struct scatterlist sg[CARM_MAX_REQ_SG];
-};
-
-struct carm_host {
- unsigned long flags;
- void __iomem *mmio;
- void *shm;
- dma_addr_t shm_dma;
-
- int major;
- int id;
- char name[32];
-
- spinlock_t lock;
- struct pci_dev *pdev;
- unsigned int state;
- u32 fw_ver;
-
- struct blk_mq_tag_set tag_set;
- struct request_queue *oob_q;
- unsigned int n_oob;
-
- unsigned int hw_sg_used;
-
- unsigned int resp_idx;
-
- unsigned int wait_q_prod;
- unsigned int wait_q_cons;
- struct request_queue *wait_q[CARM_MAX_WAIT_Q];
-
- void *msg_base;
- dma_addr_t msg_dma;
-
- int cur_scan_dev;
- unsigned long dev_active;
- unsigned long dev_present;
- struct carm_port port[CARM_MAX_PORTS];
-
- struct work_struct fsm_task;
-
- struct completion probe_comp;
-};
-
-struct carm_response {
- __le32 ret_handle;
- __le32 status;
-} __attribute__((packed));
-
-struct carm_msg_sg {
- __le32 start;
- __le32 len;
-} __attribute__((packed));
-
-struct carm_msg_rw {
- u8 type;
- u8 id;
- u8 sg_count;
- u8 sg_type;
- __le32 handle;
- __le32 lba;
- __le16 lba_count;
- __le16 lba_high;
- struct carm_msg_sg sg[32];
-} __attribute__((packed));
-
-struct carm_msg_allocbuf {
- u8 type;
- u8 subtype;
- u8 n_sg;
- u8 sg_type;
- __le32 handle;
- __le32 addr;
- __le32 len;
- __le32 evt_pool;
- __le32 n_evt;
- __le32 rbuf_pool;
- __le32 n_rbuf;
- __le32 msg_pool;
- __le32 n_msg;
- struct carm_msg_sg sg[8];
-} __attribute__((packed));
-
-struct carm_msg_ioctl {
- u8 type;
- u8 subtype;
- u8 array_id;
- u8 reserved1;
- __le32 handle;
- __le32 data_addr;
- u32 reserved2;
-} __attribute__((packed));
-
-struct carm_msg_sync_time {
- u8 type;
- u8 subtype;
- u16 reserved1;
- __le32 handle;
- u32 reserved2;
- __le32 timestamp;
-} __attribute__((packed));
-
-struct carm_msg_get_fw_ver {
- u8 type;
- u8 subtype;
- u16 reserved1;
- __le32 handle;
- __le32 data_addr;
- u32 reserved2;
-} __attribute__((packed));
-
-struct carm_fw_ver {
- __le32 version;
- u8 features;
- u8 reserved1;
- u16 reserved2;
-} __attribute__((packed));
-
-struct carm_array_info {
- __le32 size;
-
- __le16 size_hi;
- __le16 stripe_size;
-
- __le32 mode;
-
- __le16 stripe_blk_sz;
- __le16 reserved1;
-
- __le16 cyl;
- __le16 head;
-
- __le16 sect;
- u8 array_id;
- u8 reserved2;
-
- char name[40];
-
- __le32 array_status;
-
- /* device list continues beyond this point? */
-} __attribute__((packed));
-
-static int carm_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
-static void carm_remove_one (struct pci_dev *pdev);
-static int carm_bdev_getgeo(struct block_device *bdev, struct hd_geometry *geo);
-
-static const struct pci_device_id carm_pci_tbl[] = {
- { PCI_VENDOR_ID_PROMISE, 0x8000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
- { PCI_VENDOR_ID_PROMISE, 0x8002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
- { } /* terminate list */
-};
-MODULE_DEVICE_TABLE(pci, carm_pci_tbl);
-
-static struct pci_driver carm_driver = {
- .name = DRV_NAME,
- .id_table = carm_pci_tbl,
- .probe = carm_init_one,
- .remove = carm_remove_one,
-};
-
-static const struct block_device_operations carm_bd_ops = {
- .owner = THIS_MODULE,
- .getgeo = carm_bdev_getgeo,
-};
-
-static unsigned int carm_host_id;
-static unsigned long carm_major_alloc;
-
-
-
-static int carm_bdev_getgeo(struct block_device *bdev, struct hd_geometry *geo)
-{
- struct carm_port *port = bdev->bd_disk->private_data;
-
- geo->heads = (u8) port->dev_geom_head;
- geo->sectors = (u8) port->dev_geom_sect;
- geo->cylinders = port->dev_geom_cyl;
- return 0;
-}
-
-static const u32 msg_sizes[] = { 32, 64, 128, CARM_MSG_SIZE };
-
-static inline int carm_lookup_bucket(u32 msg_size)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(msg_sizes); i++)
- if (msg_size <= msg_sizes[i])
- return i;
-
- return -ENOENT;
-}
-
-static void carm_init_buckets(void __iomem *mmio)
-{
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(msg_sizes); i++)
- writel(msg_sizes[i], mmio + CARM_CMS0 + (4 * i));
-}
-
-static inline void *carm_ref_msg(struct carm_host *host,
- unsigned int msg_idx)
-{
- return host->msg_base + (msg_idx * CARM_MSG_SIZE);
-}
-
-static inline dma_addr_t carm_ref_msg_dma(struct carm_host *host,
- unsigned int msg_idx)
-{
- return host->msg_dma + (msg_idx * CARM_MSG_SIZE);
-}
-
-static int carm_send_msg(struct carm_host *host,
- struct carm_request *crq, unsigned tag)
-{
- void __iomem *mmio = host->mmio;
- u32 msg = (u32) carm_ref_msg_dma(host, tag);
- u32 cm_bucket = crq->msg_bucket;
- u32 tmp;
- int rc = 0;
-
- VPRINTK("ENTER\n");
-
- tmp = readl(mmio + CARM_HMUC);
- if (tmp & CARM_Q_FULL) {
-#if 0
- tmp = readl(mmio + CARM_INT_MASK);
- tmp |= INT_Q_AVAILABLE;
- writel(tmp, mmio + CARM_INT_MASK);
- readl(mmio + CARM_INT_MASK); /* flush */
-#endif
- DPRINTK("host msg queue full\n");
- rc = -EBUSY;
- } else {
- writel(msg | (cm_bucket << 1), mmio + CARM_IHQP);
- readl(mmio + CARM_IHQP); /* flush */
- }
-
- return rc;
-}
-
-static int carm_array_info (struct carm_host *host, unsigned int array_idx)
-{
- struct carm_msg_ioctl *ioc;
- u32 msg_data;
- dma_addr_t msg_dma;
- struct carm_request *crq;
- struct request *rq;
- int rc;
-
- rq = blk_mq_alloc_request(host->oob_q, REQ_OP_DRV_OUT, 0);
- if (IS_ERR(rq)) {
- rc = -ENOMEM;
- goto err_out;
- }
- crq = blk_mq_rq_to_pdu(rq);
-
- ioc = carm_ref_msg(host, rq->tag);
- msg_dma = carm_ref_msg_dma(host, rq->tag);
- msg_data = (u32) (msg_dma + sizeof(struct carm_array_info));
-
- crq->msg_type = CARM_MSG_ARRAY;
- crq->msg_subtype = CARM_ARRAY_INFO;
- rc = carm_lookup_bucket(sizeof(struct carm_msg_ioctl) +
- sizeof(struct carm_array_info));
- BUG_ON(rc < 0);
- crq->msg_bucket = (u32) rc;
-
- memset(ioc, 0, sizeof(*ioc));
- ioc->type = CARM_MSG_ARRAY;
- ioc->subtype = CARM_ARRAY_INFO;
- ioc->array_id = (u8) array_idx;
- ioc->handle = cpu_to_le32(TAG_ENCODE(rq->tag));
- ioc->data_addr = cpu_to_le32(msg_data);
-
- spin_lock_irq(&host->lock);
- assert(host->state == HST_DEV_SCAN_START ||
- host->state == HST_DEV_SCAN);
- spin_unlock_irq(&host->lock);
-
- DPRINTK("blk_execute_rq_nowait, tag == %u\n", rq->tag);
- blk_execute_rq_nowait(host->oob_q, NULL, rq, true, NULL);
-
- return 0;
-
-err_out:
- spin_lock_irq(&host->lock);
- host->state = HST_ERROR;
- spin_unlock_irq(&host->lock);
- return rc;
-}
-
-typedef unsigned int (*carm_sspc_t)(struct carm_host *, unsigned int, void *);
-
-static int carm_send_special (struct carm_host *host, carm_sspc_t func)
-{
- struct request *rq;
- struct carm_request *crq;
- struct carm_msg_ioctl *ioc;
- void *mem;
- unsigned int msg_size;
- int rc;
-
- rq = blk_mq_alloc_request(host->oob_q, REQ_OP_DRV_OUT, 0);
- if (IS_ERR(rq))
- return -ENOMEM;
- crq = blk_mq_rq_to_pdu(rq);
-
- mem = carm_ref_msg(host, rq->tag);
-
- msg_size = func(host, rq->tag, mem);
-
- ioc = mem;
- crq->msg_type = ioc->type;
- crq->msg_subtype = ioc->subtype;
- rc = carm_lookup_bucket(msg_size);
- BUG_ON(rc < 0);
- crq->msg_bucket = (u32) rc;
-
- DPRINTK("blk_execute_rq_nowait, tag == %u\n", rq->tag);
- blk_execute_rq_nowait(host->oob_q, NULL, rq, true, NULL);
-
- return 0;
-}
-
-static unsigned int carm_fill_sync_time(struct carm_host *host,
- unsigned int idx, void *mem)
-{
- struct carm_msg_sync_time *st = mem;
-
- time64_t tv = ktime_get_real_seconds();
-
- memset(st, 0, sizeof(*st));
- st->type = CARM_MSG_MISC;
- st->subtype = MISC_SET_TIME;
- st->handle = cpu_to_le32(TAG_ENCODE(idx));
- st->timestamp = cpu_to_le32(tv);
-
- return sizeof(struct carm_msg_sync_time);
-}
-
-static unsigned int carm_fill_alloc_buf(struct carm_host *host,
- unsigned int idx, void *mem)
-{
- struct carm_msg_allocbuf *ab = mem;
-
- memset(ab, 0, sizeof(*ab));
- ab->type = CARM_MSG_MISC;
- ab->subtype = MISC_ALLOC_MEM;
- ab->handle = cpu_to_le32(TAG_ENCODE(idx));
- ab->n_sg = 1;
- ab->sg_type = SGT_32BIT;
- ab->addr = cpu_to_le32(host->shm_dma + (PDC_SHM_SIZE >> 1));
- ab->len = cpu_to_le32(PDC_SHM_SIZE >> 1);
- ab->evt_pool = cpu_to_le32(host->shm_dma + (16 * 1024));
- ab->n_evt = cpu_to_le32(1024);
- ab->rbuf_pool = cpu_to_le32(host->shm_dma);
- ab->n_rbuf = cpu_to_le32(RMSG_Q_LEN);
- ab->msg_pool = cpu_to_le32(host->shm_dma + RBUF_LEN);
- ab->n_msg = cpu_to_le32(CARM_Q_LEN);
- ab->sg[0].start = cpu_to_le32(host->shm_dma + (PDC_SHM_SIZE >> 1));
- ab->sg[0].len = cpu_to_le32(65536);
-
- return sizeof(struct carm_msg_allocbuf);
-}
-
-static unsigned int carm_fill_scan_channels(struct carm_host *host,
- unsigned int idx, void *mem)
-{
- struct carm_msg_ioctl *ioc = mem;
- u32 msg_data = (u32) (carm_ref_msg_dma(host, idx) +
- IOC_SCAN_CHAN_OFFSET);
-
- memset(ioc, 0, sizeof(*ioc));
- ioc->type = CARM_MSG_IOCTL;
- ioc->subtype = CARM_IOC_SCAN_CHAN;
- ioc->handle = cpu_to_le32(TAG_ENCODE(idx));
- ioc->data_addr = cpu_to_le32(msg_data);
-
- /* fill output data area with "no device" default values */
- mem += IOC_SCAN_CHAN_OFFSET;
- memset(mem, IOC_SCAN_CHAN_NODEV, CARM_MAX_PORTS);
-
- return IOC_SCAN_CHAN_OFFSET + CARM_MAX_PORTS;
-}
-
-static unsigned int carm_fill_get_fw_ver(struct carm_host *host,
- unsigned int idx, void *mem)
-{
- struct carm_msg_get_fw_ver *ioc = mem;
- u32 msg_data = (u32) (carm_ref_msg_dma(host, idx) + sizeof(*ioc));
-
- memset(ioc, 0, sizeof(*ioc));
- ioc->type = CARM_MSG_MISC;
- ioc->subtype = MISC_GET_FW_VER;
- ioc->handle = cpu_to_le32(TAG_ENCODE(idx));
- ioc->data_addr = cpu_to_le32(msg_data);
-
- return sizeof(struct carm_msg_get_fw_ver) +
- sizeof(struct carm_fw_ver);
-}
-
-static inline void carm_push_q (struct carm_host *host, struct request_queue *q)
-{
- unsigned int idx = host->wait_q_prod % CARM_MAX_WAIT_Q;
-
- blk_mq_stop_hw_queues(q);
- VPRINTK("STOPPED QUEUE %p\n", q);
-
- host->wait_q[idx] = q;
- host->wait_q_prod++;
- BUG_ON(host->wait_q_prod == host->wait_q_cons); /* overrun */
-}
-
-static inline struct request_queue *carm_pop_q(struct carm_host *host)
-{
- unsigned int idx;
-
- if (host->wait_q_prod == host->wait_q_cons)
- return NULL;
-
- idx = host->wait_q_cons % CARM_MAX_WAIT_Q;
- host->wait_q_cons++;
-
- return host->wait_q[idx];
-}
-
-static inline void carm_round_robin(struct carm_host *host)
-{
- struct request_queue *q = carm_pop_q(host);
- if (q) {
- blk_mq_start_hw_queues(q);
- VPRINTK("STARTED QUEUE %p\n", q);
- }
-}
-
-static inline enum dma_data_direction carm_rq_dir(struct request *rq)
-{
- return op_is_write(req_op(rq)) ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
-}
-
-static blk_status_t carm_queue_rq(struct blk_mq_hw_ctx *hctx,
- const struct blk_mq_queue_data *bd)
-{
- struct request_queue *q = hctx->queue;
- struct request *rq = bd->rq;
- struct carm_port *port = q->queuedata;
- struct carm_host *host = port->host;
- struct carm_request *crq = blk_mq_rq_to_pdu(rq);
- struct carm_msg_rw *msg;
- struct scatterlist *sg;
- int i, n_elem = 0, rc;
- unsigned int msg_size;
- u32 tmp;
-
- crq->n_elem = 0;
- sg_init_table(crq->sg, CARM_MAX_REQ_SG);
-
- blk_mq_start_request(rq);
-
- spin_lock_irq(&host->lock);
- if (req_op(rq) == REQ_OP_DRV_OUT)
- goto send_msg;
-
- /* get scatterlist from block layer */
- sg = &crq->sg[0];
- n_elem = blk_rq_map_sg(q, rq, sg);
- if (n_elem <= 0)
- goto out_ioerr;
-
- /* map scatterlist to PCI bus addresses */
- n_elem = dma_map_sg(&host->pdev->dev, sg, n_elem, carm_rq_dir(rq));
- if (n_elem <= 0)
- goto out_ioerr;
-
- /* obey global hardware limit on S/G entries */
- if (host->hw_sg_used >= CARM_MAX_HOST_SG - n_elem)
- goto out_resource;
-
- crq->n_elem = n_elem;
- host->hw_sg_used += n_elem;
-
- /*
- * build read/write message
- */
-
- VPRINTK("build msg\n");
- msg = (struct carm_msg_rw *) carm_ref_msg(host, rq->tag);
-
- if (rq_data_dir(rq) == WRITE) {
- msg->type = CARM_MSG_WRITE;
- crq->msg_type = CARM_MSG_WRITE;
- } else {
- msg->type = CARM_MSG_READ;
- crq->msg_type = CARM_MSG_READ;
- }
-
- msg->id = port->port_no;
- msg->sg_count = n_elem;
- msg->sg_type = SGT_32BIT;
- msg->handle = cpu_to_le32(TAG_ENCODE(rq->tag));
- msg->lba = cpu_to_le32(blk_rq_pos(rq) & 0xffffffff);
- tmp = (blk_rq_pos(rq) >> 16) >> 16;
- msg->lba_high = cpu_to_le16( (u16) tmp );
- msg->lba_count = cpu_to_le16(blk_rq_sectors(rq));
-
- msg_size = sizeof(struct carm_msg_rw) - sizeof(msg->sg);
- for (i = 0; i < n_elem; i++) {
- struct carm_msg_sg *carm_sg = &msg->sg[i];
- carm_sg->start = cpu_to_le32(sg_dma_address(&crq->sg[i]));
- carm_sg->len = cpu_to_le32(sg_dma_len(&crq->sg[i]));
- msg_size += sizeof(struct carm_msg_sg);
- }
-
- rc = carm_lookup_bucket(msg_size);
- BUG_ON(rc < 0);
- crq->msg_bucket = (u32) rc;
-send_msg:
- /*
- * queue read/write message to hardware
- */
- VPRINTK("send msg, tag == %u\n", rq->tag);
- rc = carm_send_msg(host, crq, rq->tag);
- if (rc) {
- host->hw_sg_used -= n_elem;
- goto out_resource;
- }
-
- spin_unlock_irq(&host->lock);
- return BLK_STS_OK;
-out_resource:
- dma_unmap_sg(&host->pdev->dev, &crq->sg[0], n_elem, carm_rq_dir(rq));
- carm_push_q(host, q);
- spin_unlock_irq(&host->lock);
- return BLK_STS_DEV_RESOURCE;
-out_ioerr:
- carm_round_robin(host);
- spin_unlock_irq(&host->lock);
- return BLK_STS_IOERR;
-}
-
-static void carm_handle_array_info(struct carm_host *host,
- struct carm_request *crq, u8 *mem,
- blk_status_t error)
-{
- struct carm_port *port;
- u8 *msg_data = mem + sizeof(struct carm_array_info);
- struct carm_array_info *desc = (struct carm_array_info *) msg_data;
- u64 lo, hi;
- int cur_port;
- size_t slen;
-
- DPRINTK("ENTER\n");
-
- if (error)
- goto out;
- if (le32_to_cpu(desc->array_status) & ARRAY_NO_EXIST)
- goto out;
-
- cur_port = host->cur_scan_dev;
-
- /* should never occur */
- if ((cur_port < 0) || (cur_port >= CARM_MAX_PORTS)) {
- printk(KERN_ERR PFX "BUG: cur_scan_dev==%d, array_id==%d\n",
- cur_port, (int) desc->array_id);
- goto out;
- }
-
- port = &host->port[cur_port];
-
- lo = (u64) le32_to_cpu(desc->size);
- hi = (u64) le16_to_cpu(desc->size_hi);
-
- port->capacity = lo | (hi << 32);
- port->dev_geom_head = le16_to_cpu(desc->head);
- port->dev_geom_sect = le16_to_cpu(desc->sect);
- port->dev_geom_cyl = le16_to_cpu(desc->cyl);
-
- host->dev_active |= (1 << cur_port);
-
- strncpy(port->name, desc->name, sizeof(port->name));
- port->name[sizeof(port->name) - 1] = 0;
- slen = strlen(port->name);
- while (slen && (port->name[slen - 1] == ' ')) {
- port->name[slen - 1] = 0;
- slen--;
- }
-
- printk(KERN_INFO DRV_NAME "(%s): port %u device %Lu sectors\n",
- pci_name(host->pdev), port->port_no,
- (unsigned long long) port->capacity);
- printk(KERN_INFO DRV_NAME "(%s): port %u device \"%s\"\n",
- pci_name(host->pdev), port->port_no, port->name);
-
-out:
- assert(host->state == HST_DEV_SCAN);
- schedule_work(&host->fsm_task);
-}
-
-static void carm_handle_scan_chan(struct carm_host *host,
- struct carm_request *crq, u8 *mem,
- blk_status_t error)
-{
- u8 *msg_data = mem + IOC_SCAN_CHAN_OFFSET;
- unsigned int i, dev_count = 0;
- int new_state = HST_DEV_SCAN_START;
-
- DPRINTK("ENTER\n");
-
- if (error) {
- new_state = HST_ERROR;
- goto out;
- }
-
- /* TODO: scan and support non-disk devices */
- for (i = 0; i < 8; i++)
- if (msg_data[i] == 0) { /* direct-access device (disk) */
- host->dev_present |= (1 << i);
- dev_count++;
- }
-
- printk(KERN_INFO DRV_NAME "(%s): found %u interesting devices\n",
- pci_name(host->pdev), dev_count);
-
-out:
- assert(host->state == HST_PORT_SCAN);
- host->state = new_state;
- schedule_work(&host->fsm_task);
-}
-
-static void carm_handle_generic(struct carm_host *host,
- struct carm_request *crq, blk_status_t error,
- int cur_state, int next_state)
-{
- DPRINTK("ENTER\n");
-
- assert(host->state == cur_state);
- if (error)
- host->state = HST_ERROR;
- else
- host->state = next_state;
- schedule_work(&host->fsm_task);
-}
-
-static inline void carm_handle_resp(struct carm_host *host,
- __le32 ret_handle_le, u32 status)
-{
- u32 handle = le32_to_cpu(ret_handle_le);
- unsigned int msg_idx;
- struct request *rq;
- struct carm_request *crq;
- blk_status_t error = (status == RMSG_OK) ? 0 : BLK_STS_IOERR;
- u8 *mem;
-
- VPRINTK("ENTER, handle == 0x%x\n", handle);
-
- if (unlikely(!TAG_VALID(handle))) {
- printk(KERN_ERR DRV_NAME "(%s): BUG: invalid tag 0x%x\n",
- pci_name(host->pdev), handle);
- return;
- }
-
- msg_idx = TAG_DECODE(handle);
- VPRINTK("tag == %u\n", msg_idx);
-
- rq = blk_mq_tag_to_rq(host->tag_set.tags[0], msg_idx);
- crq = blk_mq_rq_to_pdu(rq);
-
- /* fast path */
- if (likely(crq->msg_type == CARM_MSG_READ ||
- crq->msg_type == CARM_MSG_WRITE)) {
- dma_unmap_sg(&host->pdev->dev, &crq->sg[0], crq->n_elem,
- carm_rq_dir(rq));
- goto done;
- }
-
- mem = carm_ref_msg(host, msg_idx);
-
- switch (crq->msg_type) {
- case CARM_MSG_IOCTL: {
- switch (crq->msg_subtype) {
- case CARM_IOC_SCAN_CHAN:
- carm_handle_scan_chan(host, crq, mem, error);
- goto done;
- default:
- /* unknown / invalid response */
- goto err_out;
- }
- break;
- }
-
- case CARM_MSG_MISC: {
- switch (crq->msg_subtype) {
- case MISC_ALLOC_MEM:
- carm_handle_generic(host, crq, error,
- HST_ALLOC_BUF, HST_SYNC_TIME);
- goto done;
- case MISC_SET_TIME:
- carm_handle_generic(host, crq, error,
- HST_SYNC_TIME, HST_GET_FW_VER);
- goto done;
- case MISC_GET_FW_VER: {
- struct carm_fw_ver *ver = (struct carm_fw_ver *)
- (mem + sizeof(struct carm_msg_get_fw_ver));
- if (!error) {
- host->fw_ver = le32_to_cpu(ver->version);
- host->flags |= (ver->features & FL_FW_VER_MASK);
- }
- carm_handle_generic(host, crq, error,
- HST_GET_FW_VER, HST_PORT_SCAN);
- goto done;
- }
- default:
- /* unknown / invalid response */
- goto err_out;
- }
- break;
- }
-
- case CARM_MSG_ARRAY: {
- switch (crq->msg_subtype) {
- case CARM_ARRAY_INFO:
- carm_handle_array_info(host, crq, mem, error);
- break;
- default:
- /* unknown / invalid response */
- goto err_out;
- }
- break;
- }
-
- default:
- /* unknown / invalid response */
- goto err_out;
- }
-
- return;
-
-err_out:
- printk(KERN_WARNING DRV_NAME "(%s): BUG: unhandled message type %d/%d\n",
- pci_name(host->pdev), crq->msg_type, crq->msg_subtype);
- error = BLK_STS_IOERR;
-done:
- host->hw_sg_used -= crq->n_elem;
- blk_mq_end_request(blk_mq_rq_from_pdu(crq), error);
-
- if (host->hw_sg_used <= CARM_SG_LOW_WATER)
- carm_round_robin(host);
-}
-
-static inline void carm_handle_responses(struct carm_host *host)
-{
- void __iomem *mmio = host->mmio;
- struct carm_response *resp = (struct carm_response *) host->shm;
- unsigned int work = 0;
- unsigned int idx = host->resp_idx % RMSG_Q_LEN;
-
- while (1) {
- u32 status = le32_to_cpu(resp[idx].status);
-
- if (status == 0xffffffff) {
- VPRINTK("ending response on index %u\n", idx);
- writel(idx << 3, mmio + CARM_RESP_IDX);
- break;
- }
-
- /* response to a message we sent */
- else if ((status & (1 << 31)) == 0) {
- VPRINTK("handling msg response on index %u\n", idx);
- carm_handle_resp(host, resp[idx].ret_handle, status);
- resp[idx].status = cpu_to_le32(0xffffffff);
- }
-
- /* asynchronous events the hardware throws our way */
- else if ((status & 0xff000000) == (1 << 31)) {
- u8 *evt_type_ptr = (u8 *) &resp[idx];
- u8 evt_type = *evt_type_ptr;
- printk(KERN_WARNING DRV_NAME "(%s): unhandled event type %d\n",
- pci_name(host->pdev), (int) evt_type);
- resp[idx].status = cpu_to_le32(0xffffffff);
- }
-
- idx = NEXT_RESP(idx);
- work++;
- }
-
- VPRINTK("EXIT, work==%u\n", work);
- host->resp_idx += work;
-}
-
-static irqreturn_t carm_interrupt(int irq, void *__host)
-{
- struct carm_host *host = __host;
- void __iomem *mmio;
- u32 mask;
- int handled = 0;
- unsigned long flags;
-
- if (!host) {
- VPRINTK("no host\n");
- return IRQ_NONE;
- }
-
- spin_lock_irqsave(&host->lock, flags);
-
- mmio = host->mmio;
-
- /* reading should also clear interrupts */
- mask = readl(mmio + CARM_INT_STAT);
-
- if (mask == 0 || mask == 0xffffffff) {
- VPRINTK("no work, mask == 0x%x\n", mask);
- goto out;
- }
-
- if (mask & INT_ACK_MASK)
- writel(mask, mmio + CARM_INT_STAT);
-
- if (unlikely(host->state == HST_INVALID)) {
- VPRINTK("not initialized yet, mask = 0x%x\n", mask);
- goto out;
- }
-
- if (mask & CARM_HAVE_RESP) {
- handled = 1;
- carm_handle_responses(host);
- }
-
-out:
- spin_unlock_irqrestore(&host->lock, flags);
- VPRINTK("EXIT\n");
- return IRQ_RETVAL(handled);
-}
-
-static void carm_fsm_task (struct work_struct *work)
-{
- struct carm_host *host =
- container_of(work, struct carm_host, fsm_task);
- unsigned long flags;
- unsigned int state;
- int rc, i, next_dev;
- int reschedule = 0;
- int new_state = HST_INVALID;
-
- spin_lock_irqsave(&host->lock, flags);
- state = host->state;
- spin_unlock_irqrestore(&host->lock, flags);
-
- DPRINTK("ENTER, state == %s\n", state_name[state]);
-
- switch (state) {
- case HST_PROBE_START:
- new_state = HST_ALLOC_BUF;
- reschedule = 1;
- break;
-
- case HST_ALLOC_BUF:
- rc = carm_send_special(host, carm_fill_alloc_buf);
- if (rc) {
- new_state = HST_ERROR;
- reschedule = 1;
- }
- break;
-
- case HST_SYNC_TIME:
- rc = carm_send_special(host, carm_fill_sync_time);
- if (rc) {
- new_state = HST_ERROR;
- reschedule = 1;
- }
- break;
-
- case HST_GET_FW_VER:
- rc = carm_send_special(host, carm_fill_get_fw_ver);
- if (rc) {
- new_state = HST_ERROR;
- reschedule = 1;
- }
- break;
-
- case HST_PORT_SCAN:
- rc = carm_send_special(host, carm_fill_scan_channels);
- if (rc) {
- new_state = HST_ERROR;
- reschedule = 1;
- }
- break;
-
- case HST_DEV_SCAN_START:
- host->cur_scan_dev = -1;
- new_state = HST_DEV_SCAN;
- reschedule = 1;
- break;
-
- case HST_DEV_SCAN:
- next_dev = -1;
- for (i = host->cur_scan_dev + 1; i < CARM_MAX_PORTS; i++)
- if (host->dev_present & (1 << i)) {
- next_dev = i;
- break;
- }
-
- if (next_dev >= 0) {
- host->cur_scan_dev = next_dev;
- rc = carm_array_info(host, next_dev);
- if (rc) {
- new_state = HST_ERROR;
- reschedule = 1;
- }
- } else {
- new_state = HST_DEV_ACTIVATE;
- reschedule = 1;
- }
- break;
-
- case HST_DEV_ACTIVATE: {
- int activated = 0;
- for (i = 0; i < CARM_MAX_PORTS; i++)
- if (host->dev_active & (1 << i)) {
- struct carm_port *port = &host->port[i];
- struct gendisk *disk = port->disk;
-
- set_capacity(disk, port->capacity);
- add_disk(disk);
- activated++;
- }
-
- printk(KERN_INFO DRV_NAME "(%s): %d ports activated\n",
- pci_name(host->pdev), activated);
-
- new_state = HST_PROBE_FINISHED;
- reschedule = 1;
- break;
- }
-
- case HST_PROBE_FINISHED:
- complete(&host->probe_comp);
- break;
-
- case HST_ERROR:
- /* FIXME: TODO */
- break;
-
- default:
- /* should never occur */
- printk(KERN_ERR PFX "BUG: unknown state %d\n", state);
- assert(0);
- break;
- }
-
- if (new_state != HST_INVALID) {
- spin_lock_irqsave(&host->lock, flags);
- host->state = new_state;
- spin_unlock_irqrestore(&host->lock, flags);
- }
- if (reschedule)
- schedule_work(&host->fsm_task);
-}
-
-static int carm_init_wait(void __iomem *mmio, u32 bits, unsigned int test_bit)
-{
- unsigned int i;
-
- for (i = 0; i < 50000; i++) {
- u32 tmp = readl(mmio + CARM_LMUC);
- udelay(100);
-
- if (test_bit) {
- if ((tmp & bits) == bits)
- return 0;
- } else {
- if ((tmp & bits) == 0)
- return 0;
- }
-
- cond_resched();
- }
-
- printk(KERN_ERR PFX "carm_init_wait timeout, bits == 0x%x, test_bit == %s\n",
- bits, test_bit ? "yes" : "no");
- return -EBUSY;
-}
-
-static void carm_init_responses(struct carm_host *host)
-{
- void __iomem *mmio = host->mmio;
- unsigned int i;
- struct carm_response *resp = (struct carm_response *) host->shm;
-
- for (i = 0; i < RMSG_Q_LEN; i++)
- resp[i].status = cpu_to_le32(0xffffffff);
-
- writel(0, mmio + CARM_RESP_IDX);
-}
-
-static int carm_init_host(struct carm_host *host)
-{
- void __iomem *mmio = host->mmio;
- u32 tmp;
- u8 tmp8;
- int rc;
-
- DPRINTK("ENTER\n");
-
- writel(0, mmio + CARM_INT_MASK);
-
- tmp8 = readb(mmio + CARM_INITC);
- if (tmp8 & 0x01) {
- tmp8 &= ~0x01;
- writeb(tmp8, mmio + CARM_INITC);
- readb(mmio + CARM_INITC); /* flush */
-
- DPRINTK("snooze...\n");
- msleep(5000);
- }
-
- tmp = readl(mmio + CARM_HMUC);
- if (tmp & CARM_CME) {
- DPRINTK("CME bit present, waiting\n");
- rc = carm_init_wait(mmio, CARM_CME, 1);
- if (rc) {
- DPRINTK("EXIT, carm_init_wait 1 failed\n");
- return rc;
- }
- }
- if (tmp & CARM_RME) {
- DPRINTK("RME bit present, waiting\n");
- rc = carm_init_wait(mmio, CARM_RME, 1);
- if (rc) {
- DPRINTK("EXIT, carm_init_wait 2 failed\n");
- return rc;
- }
- }
-
- tmp &= ~(CARM_RME | CARM_CME);
- writel(tmp, mmio + CARM_HMUC);
- readl(mmio + CARM_HMUC); /* flush */
-
- rc = carm_init_wait(mmio, CARM_RME | CARM_CME, 0);
- if (rc) {
- DPRINTK("EXIT, carm_init_wait 3 failed\n");
- return rc;
- }
-
- carm_init_buckets(mmio);
-
- writel(host->shm_dma & 0xffffffff, mmio + RBUF_ADDR_LO);
- writel((host->shm_dma >> 16) >> 16, mmio + RBUF_ADDR_HI);
- writel(RBUF_LEN, mmio + RBUF_BYTE_SZ);
-
- tmp = readl(mmio + CARM_HMUC);
- tmp |= (CARM_RME | CARM_CME | CARM_WZBC);
- writel(tmp, mmio + CARM_HMUC);
- readl(mmio + CARM_HMUC); /* flush */
-
- rc = carm_init_wait(mmio, CARM_RME | CARM_CME, 1);
- if (rc) {
- DPRINTK("EXIT, carm_init_wait 4 failed\n");
- return rc;
- }
-
- writel(0, mmio + CARM_HMPHA);
- writel(INT_DEF_MASK, mmio + CARM_INT_MASK);
-
- carm_init_responses(host);
-
- /* start initialization, probing state machine */
- spin_lock_irq(&host->lock);
- assert(host->state == HST_INVALID);
- host->state = HST_PROBE_START;
- spin_unlock_irq(&host->lock);
- schedule_work(&host->fsm_task);
-
- DPRINTK("EXIT\n");
- return 0;
-}
-
-static const struct blk_mq_ops carm_mq_ops = {
- .queue_rq = carm_queue_rq,
-};
-
-static int carm_init_disk(struct carm_host *host, unsigned int port_no)
-{
- struct carm_port *port = &host->port[port_no];
- struct gendisk *disk;
- struct request_queue *q;
-
- port->host = host;
- port->port_no = port_no;
-
- disk = alloc_disk(CARM_MINORS_PER_MAJOR);
- if (!disk)
- return -ENOMEM;
-
- port->disk = disk;
- sprintf(disk->disk_name, DRV_NAME "/%u",
- (unsigned int)host->id * CARM_MAX_PORTS + port_no);
- disk->major = host->major;
- disk->first_minor = port_no * CARM_MINORS_PER_MAJOR;
- disk->fops = &carm_bd_ops;
- disk->private_data = port;
-
- q = blk_mq_init_queue(&host->tag_set);
- if (IS_ERR(q))
- return PTR_ERR(q);
-
- blk_queue_max_segments(q, CARM_MAX_REQ_SG);
- blk_queue_segment_boundary(q, CARM_SG_BOUNDARY);
-
- q->queuedata = port;
- disk->queue = q;
- return 0;
-}
-
-static void carm_free_disk(struct carm_host *host, unsigned int port_no)
-{
- struct carm_port *port = &host->port[port_no];
- struct gendisk *disk = port->disk;
-
- if (!disk)
- return;
-
- if (disk->flags & GENHD_FL_UP)
- del_gendisk(disk);
- if (disk->queue)
- blk_cleanup_queue(disk->queue);
- put_disk(disk);
-}
-
-static int carm_init_shm(struct carm_host *host)
-{
- host->shm = dma_alloc_coherent(&host->pdev->dev, CARM_SHM_SIZE,
- &host->shm_dma, GFP_KERNEL);
- if (!host->shm)
- return -ENOMEM;
-
- host->msg_base = host->shm + RBUF_LEN;
- host->msg_dma = host->shm_dma + RBUF_LEN;
-
- memset(host->shm, 0xff, RBUF_LEN);
- memset(host->msg_base, 0, PDC_SHM_SIZE - RBUF_LEN);
-
- return 0;
-}
-
-static int carm_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- struct carm_host *host;
- int rc;
- struct request_queue *q;
- unsigned int i;
-
- printk_once(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
-
- rc = pci_enable_device(pdev);
- if (rc)
- return rc;
-
- rc = pci_request_regions(pdev, DRV_NAME);
- if (rc)
- goto err_out;
-
- rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
- if (rc) {
- printk(KERN_ERR DRV_NAME "(%s): DMA mask failure\n",
- pci_name(pdev));
- goto err_out_regions;
- }
-
- host = kzalloc(sizeof(*host), GFP_KERNEL);
- if (!host) {
- printk(KERN_ERR DRV_NAME "(%s): memory alloc failure\n",
- pci_name(pdev));
- rc = -ENOMEM;
- goto err_out_regions;
- }
-
- host->pdev = pdev;
- spin_lock_init(&host->lock);
- INIT_WORK(&host->fsm_task, carm_fsm_task);
- init_completion(&host->probe_comp);
-
- host->mmio = ioremap(pci_resource_start(pdev, 0),
- pci_resource_len(pdev, 0));
- if (!host->mmio) {
- printk(KERN_ERR DRV_NAME "(%s): MMIO alloc failure\n",
- pci_name(pdev));
- rc = -ENOMEM;
- goto err_out_kfree;
- }
-
- rc = carm_init_shm(host);
- if (rc) {
- printk(KERN_ERR DRV_NAME "(%s): DMA SHM alloc failure\n",
- pci_name(pdev));
- goto err_out_iounmap;
- }
-
- memset(&host->tag_set, 0, sizeof(host->tag_set));
- host->tag_set.ops = &carm_mq_ops;
- host->tag_set.cmd_size = sizeof(struct carm_request);
- host->tag_set.nr_hw_queues = 1;
- host->tag_set.nr_maps = 1;
- host->tag_set.queue_depth = max_queue;
- host->tag_set.numa_node = NUMA_NO_NODE;
- host->tag_set.flags = BLK_MQ_F_SHOULD_MERGE;
-
- rc = blk_mq_alloc_tag_set(&host->tag_set);
- if (rc)
- goto err_out_dma_free;
-
- q = blk_mq_init_queue(&host->tag_set);
- if (IS_ERR(q)) {
- rc = PTR_ERR(q);
- blk_mq_free_tag_set(&host->tag_set);
- goto err_out_dma_free;
- }
-
- host->oob_q = q;
- q->queuedata = host;
-
- /*
- * Figure out which major to use: 160, 161, or dynamic
- */
- if (!test_and_set_bit(0, &carm_major_alloc))
- host->major = 160;
- else if (!test_and_set_bit(1, &carm_major_alloc))
- host->major = 161;
- else
- host->flags |= FL_DYN_MAJOR;
-
- host->id = carm_host_id;
- sprintf(host->name, DRV_NAME "%d", carm_host_id);
-
- rc = register_blkdev(host->major, host->name);
- if (rc < 0)
- goto err_out_free_majors;
- if (host->flags & FL_DYN_MAJOR)
- host->major = rc;
-
- for (i = 0; i < CARM_MAX_PORTS; i++) {
- rc = carm_init_disk(host, i);
- if (rc)
- goto err_out_blkdev_disks;
- }
-
- pci_set_master(pdev);
-
- rc = request_irq(pdev->irq, carm_interrupt, IRQF_SHARED, DRV_NAME, host);
- if (rc) {
- printk(KERN_ERR DRV_NAME "(%s): irq alloc failure\n",
- pci_name(pdev));
- goto err_out_blkdev_disks;
- }
-
- rc = carm_init_host(host);
- if (rc)
- goto err_out_free_irq;
-
- DPRINTK("waiting for probe_comp\n");
- wait_for_completion(&host->probe_comp);
-
- printk(KERN_INFO "%s: pci %s, ports %d, io %llx, irq %u, major %d\n",
- host->name, pci_name(pdev), (int) CARM_MAX_PORTS,
- (unsigned long long)pci_resource_start(pdev, 0),
- pdev->irq, host->major);
-
- carm_host_id++;
- pci_set_drvdata(pdev, host);
- return 0;
-
-err_out_free_irq:
- free_irq(pdev->irq, host);
-err_out_blkdev_disks:
- for (i = 0; i < CARM_MAX_PORTS; i++)
- carm_free_disk(host, i);
- unregister_blkdev(host->major, host->name);
-err_out_free_majors:
- if (host->major == 160)
- clear_bit(0, &carm_major_alloc);
- else if (host->major == 161)
- clear_bit(1, &carm_major_alloc);
- blk_cleanup_queue(host->oob_q);
- blk_mq_free_tag_set(&host->tag_set);
-err_out_dma_free:
- dma_free_coherent(&pdev->dev, CARM_SHM_SIZE, host->shm, host->shm_dma);
-err_out_iounmap:
- iounmap(host->mmio);
-err_out_kfree:
- kfree(host);
-err_out_regions:
- pci_release_regions(pdev);
-err_out:
- pci_disable_device(pdev);
- return rc;
-}
-
-static void carm_remove_one (struct pci_dev *pdev)
-{
- struct carm_host *host = pci_get_drvdata(pdev);
- unsigned int i;
-
- if (!host) {
- printk(KERN_ERR PFX "BUG: no host data for PCI(%s)\n",
- pci_name(pdev));
- return;
- }
-
- free_irq(pdev->irq, host);
- for (i = 0; i < CARM_MAX_PORTS; i++)
- carm_free_disk(host, i);
- unregister_blkdev(host->major, host->name);
- if (host->major == 160)
- clear_bit(0, &carm_major_alloc);
- else if (host->major == 161)
- clear_bit(1, &carm_major_alloc);
- blk_cleanup_queue(host->oob_q);
- blk_mq_free_tag_set(&host->tag_set);
- dma_free_coherent(&pdev->dev, CARM_SHM_SIZE, host->shm, host->shm_dma);
- iounmap(host->mmio);
- kfree(host);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
-}
-
-module_pci_driver(carm_driver);
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 1c73668b4375..661d456fb0ad 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -3080,6 +3080,7 @@ static void possible_parent_show(struct seq_file *s, struct clk_core *core,
unsigned int i, char terminator)
{
struct clk_core *parent;
+ const char *name = NULL;
/*
* Go through the following options to fetch a parent's name.
@@ -3094,18 +3095,20 @@ static void possible_parent_show(struct seq_file *s, struct clk_core *core,
* registered (yet).
*/
parent = clk_core_get_parent_by_index(core, i);
- if (parent)
+ if (parent) {
seq_puts(s, parent->name);
- else if (core->parents[i].name)
+ } else if (core->parents[i].name) {
seq_puts(s, core->parents[i].name);
- else if (core->parents[i].fw_name)
+ } else if (core->parents[i].fw_name) {
seq_printf(s, "<%s>(fw)", core->parents[i].fw_name);
- else if (core->parents[i].index >= 0)
- seq_puts(s,
- of_clk_get_parent_name(core->of_node,
- core->parents[i].index));
- else
- seq_puts(s, "(missing)");
+ } else {
+ if (core->parents[i].index >= 0)
+ name = of_clk_get_parent_name(core->of_node, core->parents[i].index);
+ if (!name)
+ name = "(missing)";
+
+ seq_puts(s, name);
+ }
seq_putc(s, terminator);
}
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 96a808b487cb..fa0ad8581edc 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -3700,6 +3700,7 @@ static int __init d40_probe(struct platform_device *pdev)
regulator_disable(base->lcpa_regulator);
regulator_put(base->lcpa_regulator);
}
+ pm_runtime_disable(base->dev);
kfree(base->lcla_pool.alloc_map);
kfree(base->lookup_log_chans);
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 1ff13af13324..7b396b7277ee 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1806,14 +1806,14 @@ static struct drm_dp_mst_branch *get_mst_branch_device_by_guid_helper(
struct drm_dp_mst_branch *found_mstb;
struct drm_dp_mst_port *port;
+ if (!mstb)
+ return NULL;
+
if (memcmp(mstb->guid, guid, 16) == 0)
return mstb;
list_for_each_entry(port, &mstb->ports, next) {
- if (!port->mstb)
- continue;
-
found_mstb = get_mst_branch_device_by_guid_helper(port->mstb, guid);
if (found_mstb)
diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c
index 8e04db09d787..ff08bcb09a68 100644
--- a/drivers/i2c/busses/i2c-aspeed.c
+++ b/drivers/i2c/busses/i2c-aspeed.c
@@ -740,6 +740,8 @@ static void __aspeed_i2c_reg_slave(struct aspeed_i2c_bus *bus, u16 slave_addr)
func_ctrl_reg_val = readl(bus->base + ASPEED_I2C_FUN_CTRL_REG);
func_ctrl_reg_val |= ASPEED_I2CD_SLAVE_EN;
writel(func_ctrl_reg_val, bus->base + ASPEED_I2C_FUN_CTRL_REG);
+
+ bus->slave_state = ASPEED_I2C_SLAVE_INACTIVE;
}
static int aspeed_i2c_reg_slave(struct i2c_client *client)
@@ -756,7 +758,6 @@ static int aspeed_i2c_reg_slave(struct i2c_client *client)
__aspeed_i2c_reg_slave(bus, client->addr);
bus->slave = client;
- bus->slave_state = ASPEED_I2C_SLAVE_INACTIVE;
spin_unlock_irqrestore(&bus->lock, flags);
return 0;
diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c
index 0f0c41174ddd..74dd2c15e34c 100644
--- a/drivers/i2c/busses/i2c-stm32f7.c
+++ b/drivers/i2c/busses/i2c-stm32f7.c
@@ -974,9 +974,10 @@ static int stm32f7_i2c_smbus_xfer_msg(struct stm32f7_i2c_dev *i2c_dev,
/* Configure PEC */
if ((flags & I2C_CLIENT_PEC) && f7_msg->size != I2C_SMBUS_QUICK) {
cr1 |= STM32F7_I2C_CR1_PECEN;
- cr2 |= STM32F7_I2C_CR2_PECBYTE;
- if (!f7_msg->read_write)
+ if (!f7_msg->read_write) {
+ cr2 |= STM32F7_I2C_CR2_PECBYTE;
f7_msg->count++;
+ }
} else {
cr1 &= ~STM32F7_I2C_CR1_PECEN;
cr2 &= ~STM32F7_I2C_CR2_PECBYTE;
@@ -1064,8 +1065,10 @@ static void stm32f7_i2c_smbus_rep_start(struct stm32f7_i2c_dev *i2c_dev)
f7_msg->stop = true;
/* Add one byte for PEC if needed */
- if (cr1 & STM32F7_I2C_CR1_PECEN)
+ if (cr1 & STM32F7_I2C_CR1_PECEN) {
+ cr2 |= STM32F7_I2C_CR2_PECBYTE;
f7_msg->count++;
+ }
/* Set number of bytes to be transferred */
cr2 &= ~(STM32F7_I2C_CR2_NBYTES_MASK);
diff --git a/drivers/i2c/muxes/i2c-demux-pinctrl.c b/drivers/i2c/muxes/i2c-demux-pinctrl.c
index 8e8688e8de0f..45a3f7e7b3f6 100644
--- a/drivers/i2c/muxes/i2c-demux-pinctrl.c
+++ b/drivers/i2c/muxes/i2c-demux-pinctrl.c
@@ -61,7 +61,7 @@ static int i2c_demux_activate_master(struct i2c_demux_pinctrl_priv *priv, u32 ne
if (ret)
goto err;
- adap = of_find_i2c_adapter_by_node(priv->chan[new_chan].parent_np);
+ adap = of_get_i2c_adapter_by_node(priv->chan[new_chan].parent_np);
if (!adap) {
ret = -ENODEV;
goto err_with_revert;
diff --git a/drivers/i2c/muxes/i2c-mux-gpmux.c b/drivers/i2c/muxes/i2c-mux-gpmux.c
index 480ec74e6134..fed7d17e0190 100644
--- a/drivers/i2c/muxes/i2c-mux-gpmux.c
+++ b/drivers/i2c/muxes/i2c-mux-gpmux.c
@@ -52,7 +52,7 @@ static struct i2c_adapter *mux_parent_adapter(struct device *dev)
dev_err(dev, "Cannot parse i2c-parent\n");
return ERR_PTR(-ENODEV);
}
- parent = of_find_i2c_adapter_by_node(parent_np);
+ parent = of_get_i2c_adapter_by_node(parent_np);
of_node_put(parent_np);
if (!parent)
return ERR_PTR(-EPROBE_DEFER);
diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c
index f1bb00a11ad6..fc991cf002af 100644
--- a/drivers/i2c/muxes/i2c-mux-pinctrl.c
+++ b/drivers/i2c/muxes/i2c-mux-pinctrl.c
@@ -62,7 +62,7 @@ static struct i2c_adapter *i2c_mux_pinctrl_parent_adapter(struct device *dev)
dev_err(dev, "Cannot parse i2c-parent\n");
return ERR_PTR(-ENODEV);
}
- parent = of_find_i2c_adapter_by_node(parent_np);
+ parent = of_get_i2c_adapter_by_node(parent_np);
of_node_put(parent_np);
if (!parent)
return ERR_PTR(-EPROBE_DEFER);
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index 42a3ced11fbd..234f9c37aa10 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -804,16 +804,26 @@ static int exynos_adc_probe(struct platform_device *pdev)
}
}
+ /* leave out any TS related code if unreachable */
+ if (IS_REACHABLE(CONFIG_INPUT)) {
+ has_ts = of_property_read_bool(pdev->dev.of_node,
+ "has-touchscreen") || pdata;
+ }
+
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
info->irq = irq;
- irq = platform_get_irq(pdev, 1);
- if (irq == -EPROBE_DEFER)
- return irq;
+ if (has_ts) {
+ irq = platform_get_irq(pdev, 1);
+ if (irq == -EPROBE_DEFER)
+ return irq;
- info->tsirq = irq;
+ info->tsirq = irq;
+ } else {
+ info->tsirq = -1;
+ }
info->dev = &pdev->dev;
@@ -880,12 +890,6 @@ static int exynos_adc_probe(struct platform_device *pdev)
if (info->data->init_hw)
info->data->init_hw(info);
- /* leave out any TS related code if unreachable */
- if (IS_REACHABLE(CONFIG_INPUT)) {
- has_ts = of_property_read_bool(pdev->dev.of_node,
- "has-touchscreen") || pdata;
- }
-
if (pdata)
info->delay = pdata->delay;
else
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index f2383c91113c..9cfd2c1d4e3a 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -1747,6 +1747,7 @@ static int synaptics_create_intertouch(struct psmouse *psmouse,
psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids) &&
!SYN_CAP_EXT_BUTTONS_STICK(info->ext_cap_10);
const struct rmi_device_platform_data pdata = {
+ .reset_delay_ms = 30,
.sensor_pdata = {
.sensor_type = rmi_sensor_touchpad,
.axis_align.flip_y = true,
diff --git a/drivers/input/rmi4/rmi_smbus.c b/drivers/input/rmi4/rmi_smbus.c
index 2407ea43de59..f38bf9a5f599 100644
--- a/drivers/input/rmi4/rmi_smbus.c
+++ b/drivers/input/rmi4/rmi_smbus.c
@@ -235,12 +235,29 @@ static void rmi_smb_clear_state(struct rmi_smb_xport *rmi_smb)
static int rmi_smb_enable_smbus_mode(struct rmi_smb_xport *rmi_smb)
{
- int retval;
+ struct i2c_client *client = rmi_smb->client;
+ int smbus_version;
+
+ /*
+ * psmouse driver resets the controller, we only need to wait
+ * to give the firmware chance to fully reinitialize.
+ */
+ if (rmi_smb->xport.pdata.reset_delay_ms)
+ msleep(rmi_smb->xport.pdata.reset_delay_ms);
/* we need to get the smbus version to activate the touchpad */
- retval = rmi_smb_get_version(rmi_smb);
- if (retval < 0)
- return retval;
+ smbus_version = rmi_smb_get_version(rmi_smb);
+ if (smbus_version < 0)
+ return smbus_version;
+
+ rmi_dbg(RMI_DEBUG_XPORT, &client->dev, "Smbus version is %d",
+ smbus_version);
+
+ if (smbus_version != 2 && smbus_version != 3) {
+ dev_err(&client->dev, "Unrecognized SMB version %d\n",
+ smbus_version);
+ return -ENODEV;
+ }
return 0;
}
@@ -253,11 +270,10 @@ static int rmi_smb_reset(struct rmi_transport_dev *xport, u16 reset_addr)
rmi_smb_clear_state(rmi_smb);
/*
- * we do not call the actual reset command, it has to be handled in
- * PS/2 or there will be races between PS/2 and SMBus.
- * PS/2 should ensure that a psmouse_reset is called before
- * intializing the device and after it has been removed to be in a known
- * state.
+ * We do not call the actual reset command, it has to be handled in
+ * PS/2 or there will be races between PS/2 and SMBus. PS/2 should
+ * ensure that a psmouse_reset is called before initializing the
+ * device and after it has been removed to be in a known state.
*/
return rmi_smb_enable_smbus_mode(rmi_smb);
}
@@ -273,7 +289,6 @@ static int rmi_smb_probe(struct i2c_client *client,
{
struct rmi_device_platform_data *pdata = dev_get_platdata(&client->dev);
struct rmi_smb_xport *rmi_smb;
- int smbus_version;
int error;
if (!pdata) {
@@ -312,18 +327,9 @@ static int rmi_smb_probe(struct i2c_client *client,
rmi_smb->xport.proto_name = "smb";
rmi_smb->xport.ops = &rmi_smb_ops;
- smbus_version = rmi_smb_get_version(rmi_smb);
- if (smbus_version < 0)
- return smbus_version;
-
- rmi_dbg(RMI_DEBUG_XPORT, &client->dev, "Smbus version is %d",
- smbus_version);
-
- if (smbus_version != 2 && smbus_version != 3) {
- dev_err(&client->dev, "Unrecognized SMB version %d\n",
- smbus_version);
- return -ENODEV;
- }
+ error = rmi_smb_enable_smbus_mode(rmi_smb);
+ if (error)
+ return error;
i2c_set_clientdata(client, rmi_smb);
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 700655741bf2..5df6eef18228 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -609,6 +609,14 @@ static const struct dmi_system_id i8042_dmi_quirk_table[] __initconst = {
},
.driver_data = (void *)(SERIO_QUIRK_NOMUX)
},
+ {
+ /* Fujitsu Lifebook E5411 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU CLIENT COMPUTING LIMITED"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E5411"),
+ },
+ .driver_data = (void *)(SERIO_QUIRK_NOAUX)
+ },
{
/* Gigabyte M912 */
.matches = {
diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c
index a8322a4e18d3..df18465a0985 100644
--- a/drivers/irqchip/irq-stm32-exti.c
+++ b/drivers/irqchip/irq-stm32-exti.c
@@ -414,6 +414,7 @@ static const struct irq_domain_ops irq_exti_domain_ops = {
.map = irq_map_generic_chip,
.alloc = stm32_exti_alloc,
.free = stm32_exti_free,
+ .xlate = irq_domain_xlate_twocell,
};
static void stm32_irq_ack(struct irq_data *d)
diff --git a/drivers/mcb/mcb-lpc.c b/drivers/mcb/mcb-lpc.c
index 8f1bde437a7e..92915d2c2d46 100644
--- a/drivers/mcb/mcb-lpc.c
+++ b/drivers/mcb/mcb-lpc.c
@@ -23,7 +23,7 @@ static int mcb_lpc_probe(struct platform_device *pdev)
{
struct resource *res;
struct priv *priv;
- int ret = 0;
+ int ret = 0, table_size;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -58,16 +58,43 @@ static int mcb_lpc_probe(struct platform_device *pdev)
ret = chameleon_parse_cells(priv->bus, priv->mem->start, priv->base);
if (ret < 0) {
- mcb_release_bus(priv->bus);
- return ret;
+ goto out_mcb_bus;
}
- dev_dbg(&pdev->dev, "Found %d cells\n", ret);
+ table_size = ret;
+
+ if (table_size < CHAM_HEADER_SIZE) {
+ /* Release the previous resources */
+ devm_iounmap(&pdev->dev, priv->base);
+ devm_release_mem_region(&pdev->dev, priv->mem->start, resource_size(priv->mem));
+
+ /* Then, allocate it again with the actual chameleon table size */
+ res = devm_request_mem_region(&pdev->dev, priv->mem->start,
+ table_size,
+ KBUILD_MODNAME);
+ if (!res) {
+ dev_err(&pdev->dev, "Failed to request PCI memory\n");
+ ret = -EBUSY;
+ goto out_mcb_bus;
+ }
+
+ priv->base = devm_ioremap(&pdev->dev, priv->mem->start, table_size);
+ if (!priv->base) {
+ dev_err(&pdev->dev, "Cannot ioremap\n");
+ ret = -ENOMEM;
+ goto out_mcb_bus;
+ }
+
+ platform_set_drvdata(pdev, priv);
+ }
mcb_bus_add_devices(priv->bus);
return 0;
+out_mcb_bus:
+ mcb_release_bus(priv->bus);
+ return ret;
}
static int mcb_lpc_remove(struct platform_device *pdev)
diff --git a/drivers/mcb/mcb-parse.c b/drivers/mcb/mcb-parse.c
index c111025f23c5..a88862ff8507 100644
--- a/drivers/mcb/mcb-parse.c
+++ b/drivers/mcb/mcb-parse.c
@@ -128,7 +128,7 @@ static void chameleon_parse_bar(void __iomem *base,
}
}
-static int chameleon_get_bar(char __iomem **base, phys_addr_t mapbase,
+static int chameleon_get_bar(void __iomem **base, phys_addr_t mapbase,
struct chameleon_bar **cb)
{
struct chameleon_bar *c;
@@ -177,12 +177,13 @@ int chameleon_parse_cells(struct mcb_bus *bus, phys_addr_t mapbase,
{
struct chameleon_fpga_header *header;
struct chameleon_bar *cb;
- char __iomem *p = base;
+ void __iomem *p = base;
int num_cells = 0;
uint32_t dtype;
int bar_count;
int ret;
u32 hsize;
+ u32 table_size;
hsize = sizeof(struct chameleon_fpga_header);
@@ -237,12 +238,16 @@ int chameleon_parse_cells(struct mcb_bus *bus, phys_addr_t mapbase,
num_cells++;
}
- if (num_cells == 0)
- num_cells = -EINVAL;
+ if (num_cells == 0) {
+ ret = -EINVAL;
+ goto free_bar;
+ }
+ table_size = p - base;
+ pr_debug("%d cell(s) found. Chameleon table size: 0x%04x bytes\n", num_cells, table_size);
kfree(cb);
kfree(header);
- return num_cells;
+ return table_size;
free_bar:
kfree(cb);
diff --git a/drivers/mtd/nand/raw/marvell_nand.c b/drivers/mtd/nand/raw/marvell_nand.c
index c49a3e105b42..9a119688c0a6 100644
--- a/drivers/mtd/nand/raw/marvell_nand.c
+++ b/drivers/mtd/nand/raw/marvell_nand.c
@@ -1109,6 +1109,7 @@ static int marvell_nfc_hw_ecc_hmg_do_write_page(struct nand_chip *chip,
.ndcb[2] = NDCB2_ADDR5_PAGE(page),
};
unsigned int oob_bytes = lt->spare_bytes + (raw ? lt->ecc_bytes : 0);
+ u8 status;
int ret;
/* NFCv2 needs more information about the operation being executed */
@@ -1142,7 +1143,18 @@ static int marvell_nfc_hw_ecc_hmg_do_write_page(struct nand_chip *chip,
ret = marvell_nfc_wait_op(chip,
PSEC_TO_MSEC(chip->data_interface.timings.sdr.tPROG_max));
- return ret;
+ if (ret)
+ return ret;
+
+ /* Check write status on the chip side */
+ ret = nand_status_op(chip, &status);
+ if (ret)
+ return ret;
+
+ if (status & NAND_STATUS_FAIL)
+ return -EIO;
+
+ return 0;
}
static int marvell_nfc_hw_ecc_hmg_write_page_raw(struct nand_chip *chip,
@@ -1570,6 +1582,7 @@ static int marvell_nfc_hw_ecc_bch_write_page(struct nand_chip *chip,
int data_len = lt->data_bytes;
int spare_len = lt->spare_bytes;
int chunk, ret;
+ u8 status;
marvell_nfc_select_target(chip, chip->cur_cs);
@@ -1607,6 +1620,14 @@ static int marvell_nfc_hw_ecc_bch_write_page(struct nand_chip *chip,
if (ret)
return ret;
+ /* Check write status on the chip side */
+ ret = nand_status_op(chip, &status);
+ if (ret)
+ return ret;
+
+ if (status & NAND_STATUS_FAIL)
+ return -EIO;
+
return 0;
}
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 42374859b9d3..cb3f515559c2 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -3850,6 +3850,8 @@ int t4_load_phy_fw(struct adapter *adap,
FW_PARAMS_PARAM_Z_V(FW_PARAMS_PARAM_DEV_PHYFW_DOWNLOAD));
ret = t4_set_params_timeout(adap, adap->mbox, adap->pf, 0, 1,
¶m, &val, 30000);
+ if (ret)
+ return ret;
/* If we have version number support, then check to see that the new
* firmware got loaded properly.
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 06987913837a..6067c8866834 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -2669,7 +2669,7 @@ int i40e_napi_poll(struct napi_struct *napi, int budget)
return budget;
}
- if (vsi->back->flags & I40E_TXR_FLAGS_WB_ON_ITR)
+ if (q_vector->tx.ring[0].flags & I40E_TXR_FLAGS_WB_ON_ITR)
q_vector->arm_wb_state = false;
/* Exit the polling mode, but don't re-enable interrupts if stack might
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 50f61b18ae1e..de2c39436fe0 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -2997,11 +2997,15 @@ static int igb_add_ethtool_nfc_entry(struct igb_adapter *adapter,
if (err)
goto err_out_w_lock;
- igb_update_ethtool_nfc_entry(adapter, input, input->sw_idx);
+ err = igb_update_ethtool_nfc_entry(adapter, input, input->sw_idx);
+ if (err)
+ goto err_out_input_filter;
spin_unlock(&adapter->nfc_lock);
return 0;
+err_out_input_filter:
+ igb_erase_filter(adapter, input);
err_out_w_lock:
spin_unlock(&adapter->nfc_lock);
err_out:
diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c b/drivers/net/ethernet/intel/igc/igc_ethtool.c
index 0a4e7f5f292a..a307b737dd0c 100644
--- a/drivers/net/ethernet/intel/igc/igc_ethtool.c
+++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c
@@ -1768,7 +1768,7 @@ static int igc_set_link_ksettings(struct net_device *netdev,
{
struct igc_adapter *adapter = netdev_priv(netdev);
struct igc_hw *hw = &adapter->hw;
- u32 advertising;
+ u16 advertised = 0;
/* When adapter in resetting mode, autoneg/speed/duplex
* cannot be changed
@@ -1794,18 +1794,33 @@ static int igc_set_link_ksettings(struct net_device *netdev,
while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
usleep_range(1000, 2000);
- ethtool_convert_link_mode_to_legacy_u32(&advertising,
- cmd->link_modes.advertising);
- /* Converting to legacy u32 drops ETHTOOL_LINK_MODE_2500baseT_Full_BIT.
- * We have to check this and convert it to ADVERTISE_2500_FULL
- * (aka ETHTOOL_LINK_MODE_2500baseX_Full_BIT) explicitly.
- */
- if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 2500baseT_Full))
- advertising |= ADVERTISE_2500_FULL;
+ if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+ 2500baseT_Full))
+ advertised |= ADVERTISE_2500_FULL;
+
+ if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+ 1000baseT_Full))
+ advertised |= ADVERTISE_1000_FULL;
+
+ if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+ 100baseT_Full))
+ advertised |= ADVERTISE_100_FULL;
+
+ if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+ 100baseT_Half))
+ advertised |= ADVERTISE_100_HALF;
+
+ if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+ 10baseT_Full))
+ advertised |= ADVERTISE_10_FULL;
+
+ if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+ 10baseT_Half))
+ advertised |= ADVERTISE_10_HALF;
if (cmd->base.autoneg == AUTONEG_ENABLE) {
hw->mac.autoneg = 1;
- hw->phy.autoneg_advertised = advertising;
+ hw->phy.autoneg_advertised = advertised;
if (adapter->fc_autoneg)
hw->fc.requested_mode = igc_fc_default;
} else {
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 8d2b184ff575..fca2dbdd37af 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -6031,7 +6031,7 @@ static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp,
struct ring_info *tx_skb = tp->tx_skb + entry;
u32 status;
- status = le32_to_cpu(tp->TxDescArray[entry].opts1);
+ status = le32_to_cpu(READ_ONCE(tp->TxDescArray[entry].opts1));
if (status & DescOwn)
break;
@@ -6114,7 +6114,7 @@ static int rtl_rx(struct net_device *dev, struct rtl8169_private *tp, u32 budget
struct RxDesc *desc = tp->RxDescArray + entry;
u32 status;
- status = le32_to_cpu(desc->opts1);
+ status = le32_to_cpu(READ_ONCE(desc->opts1));
if (status & DescOwn)
break;
diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c
index 2db546b27ee0..411b2a6091c9 100644
--- a/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c
+++ b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c
@@ -1217,7 +1217,7 @@ static int gelic_wl_set_encodeext(struct net_device *netdev,
key_index = wl->current_key;
if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
- /* reques to change default key index */
+ /* request to change default key index */
pr_debug("%s: request to change default key to %d\n",
__func__, key_index);
wl->current_key = key_index;
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index 0409afe9a53d..c2e649a4f1bf 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -544,8 +544,9 @@ static int gtp_build_skb_ip4(struct sk_buff *skb, struct net_device *dev,
rt->dst.ops->update_pmtu(&rt->dst, NULL, skb, mtu, false);
- if (!skb_is_gso(skb) && (iph->frag_off & htons(IP_DF)) &&
- mtu < ntohs(iph->tot_len)) {
+ if (iph->frag_off & htons(IP_DF) &&
+ ((!skb_is_gso(skb) && skb->len > mtu) ||
+ (skb_is_gso(skb) && !skb_gso_validate_network_len(skb, mtu)))) {
netdev_dbg(dev, "packet too big, fragmentation needed\n");
icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
htonl(mtu));
diff --git a/drivers/net/ieee802154/adf7242.c b/drivers/net/ieee802154/adf7242.c
index cb29da961e12..179e3e42b5f0 100644
--- a/drivers/net/ieee802154/adf7242.c
+++ b/drivers/net/ieee802154/adf7242.c
@@ -1162,9 +1162,10 @@ static int adf7242_stats_show(struct seq_file *file, void *offset)
static void adf7242_debugfs_init(struct adf7242_local *lp)
{
- char debugfs_dir_name[DNAME_INLINE_LEN + 1] = "adf7242-";
+ char debugfs_dir_name[DNAME_INLINE_LEN + 1];
- strncat(debugfs_dir_name, dev_name(&lp->spi->dev), DNAME_INLINE_LEN);
+ snprintf(debugfs_dir_name, sizeof(debugfs_dir_name),
+ "adf7242-%s", dev_name(&lp->spi->dev));
lp->debugfs_root = debugfs_create_dir(debugfs_dir_name, NULL);
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index a19f0431e6f9..472b02bcfcbf 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -850,7 +850,7 @@ int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
ret = usb_control_msg(tp->udev, usb_rcvctrlpipe(tp->udev, 0),
RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
- value, index, tmp, size, 500);
+ value, index, tmp, size, USB_CTRL_GET_TIMEOUT);
if (ret < 0)
memset(data, 0xff, size);
else
@@ -873,7 +873,7 @@ int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
ret = usb_control_msg(tp->udev, usb_sndctrlpipe(tp->udev, 0),
RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE,
- value, index, tmp, size, 500);
+ value, index, tmp, size, USB_CTRL_SET_TIMEOUT);
kfree(tmp);
@@ -5584,7 +5584,8 @@ static u8 rtl_get_version(struct usb_interface *intf)
ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
- PLA_TCR0, MCU_TYPE_PLA, tmp, sizeof(*tmp), 500);
+ PLA_TCR0, MCU_TYPE_PLA, tmp, sizeof(*tmp),
+ USB_CTRL_GET_TIMEOUT);
if (ret > 0)
ocp_data = (__le32_to_cpu(*tmp) >> 16) & VERSION_MASK;
@@ -5778,6 +5779,9 @@ static int rtl8152_probe(struct usb_interface *intf,
out1:
tasklet_kill(&tp->tx_tl);
+ cancel_delayed_work_sync(&tp->hw_phy_work);
+ if (tp->rtl_ops.unload)
+ tp->rtl_ops.unload(tp);
usb_set_intfdata(intf, NULL);
out:
free_netdev(netdev);
diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index df7a911d303f..e8c7135c4c11 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -321,6 +321,15 @@ static void nvmet_tcp_fatal_error(struct nvmet_tcp_queue *queue)
kernel_sock_shutdown(queue->sock, SHUT_RDWR);
}
+static void nvmet_tcp_socket_error(struct nvmet_tcp_queue *queue, int status)
+{
+ queue->rcv_state = NVMET_TCP_RECV_ERR;
+ if (status == -EPIPE || status == -ECONNRESET)
+ kernel_sock_shutdown(queue->sock, SHUT_RDWR);
+ else
+ nvmet_tcp_fatal_error(queue);
+}
+
static int nvmet_tcp_map_data(struct nvmet_tcp_cmd *cmd)
{
struct nvme_sgl_desc *sgl = &cmd->req.cmd->common.dptr.sgl;
@@ -714,11 +723,15 @@ static int nvmet_tcp_try_send(struct nvmet_tcp_queue *queue,
for (i = 0; i < budget; i++) {
ret = nvmet_tcp_try_send_one(queue, i == budget - 1);
- if (ret <= 0)
+ if (unlikely(ret < 0)) {
+ nvmet_tcp_socket_error(queue, ret);
+ goto done;
+ } else if (ret == 0) {
break;
+ }
(*sends)++;
}
-
+done:
return ret;
}
@@ -816,15 +829,11 @@ static int nvmet_tcp_handle_icreq(struct nvmet_tcp_queue *queue)
iov.iov_len = sizeof(*icresp);
ret = kernel_sendmsg(queue->sock, &msg, &iov, 1, iov.iov_len);
if (ret < 0)
- goto free_crypto;
+ return ret; /* queue removal will cleanup */
queue->state = NVMET_TCP_Q_LIVE;
nvmet_prepare_receive_pdu(queue);
return 0;
-free_crypto:
- if (queue->hdr_digest || queue->data_digest)
- nvmet_tcp_free_crypto(queue);
- return ret;
}
static void nvmet_tcp_handle_req_failure(struct nvmet_tcp_queue *queue,
@@ -1167,11 +1176,15 @@ static int nvmet_tcp_try_recv(struct nvmet_tcp_queue *queue,
for (i = 0; i < budget; i++) {
ret = nvmet_tcp_try_recv_one(queue);
- if (ret <= 0)
+ if (unlikely(ret < 0)) {
+ nvmet_tcp_socket_error(queue, ret);
+ goto done;
+ } else if (ret == 0) {
break;
+ }
(*recvs)++;
}
-
+done:
return ret;
}
@@ -1196,27 +1209,16 @@ static void nvmet_tcp_io_work(struct work_struct *w)
pending = false;
ret = nvmet_tcp_try_recv(queue, NVMET_TCP_RECV_BUDGET, &ops);
- if (ret > 0) {
+ if (ret > 0)
pending = true;
- } else if (ret < 0) {
- if (ret == -EPIPE || ret == -ECONNRESET)
- kernel_sock_shutdown(queue->sock, SHUT_RDWR);
- else
- nvmet_tcp_fatal_error(queue);
+ else if (ret < 0)
return;
- }
ret = nvmet_tcp_try_send(queue, NVMET_TCP_SEND_BUDGET, &ops);
- if (ret > 0) {
- /* transmitted message/data */
+ if (ret > 0)
pending = true;
- } else if (ret < 0) {
- if (ret == -EPIPE || ret == -ECONNRESET)
- kernel_sock_shutdown(queue->sock, SHUT_RDWR);
- else
- nvmet_tcp_fatal_error(queue);
+ else if (ret < 0)
return;
- }
} while (pending && ops < NVMET_TCP_IO_WORK_BUDGET);
diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c
index fc40555ca4cd..3297ced943ea 100644
--- a/drivers/nvmem/imx-ocotp.c
+++ b/drivers/nvmem/imx-ocotp.c
@@ -433,7 +433,7 @@ static const struct ocotp_params imx6sl_params = {
};
static const struct ocotp_params imx6sll_params = {
- .nregs = 128,
+ .nregs = 80,
.bank_address_words = 0,
.set_timing = imx_ocotp_set_imx6_timing,
};
@@ -445,13 +445,13 @@ static const struct ocotp_params imx6sx_params = {
};
static const struct ocotp_params imx6ul_params = {
- .nregs = 128,
+ .nregs = 144,
.bank_address_words = 0,
.set_timing = imx_ocotp_set_imx6_timing,
};
static const struct ocotp_params imx6ull_params = {
- .nregs = 64,
+ .nregs = 80,
.bank_address_words = 0,
.set_timing = imx_ocotp_set_imx6_timing,
};
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 73260bd21727..780223694c00 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -597,7 +597,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_
/*
* In the AMD NL platform, this device ([1022:7912]) has a class code of
* PCI_CLASS_SERIAL_USB_XHCI (0x0c0330), which means the xhci driver will
- * claim it.
+ * claim it. The same applies on the VanGogh platform device ([1022:163a]).
*
* But the dwc3 driver is a more specific driver for this device, and we'd
* prefer to use it instead of xhci. To prevent xhci from claiming the
@@ -605,7 +605,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_
* defines as "USB device (not host controller)". The dwc3 driver can then
* claim it based on its Vendor and Device ID.
*/
-static void quirk_amd_nl_class(struct pci_dev *pdev)
+static void quirk_amd_dwc_class(struct pci_dev *pdev)
{
u32 class = pdev->class;
@@ -615,7 +615,9 @@ static void quirk_amd_nl_class(struct pci_dev *pdev)
class, pdev->class);
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB,
- quirk_amd_nl_class);
+ quirk_amd_dwc_class);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VANGOGH_USB,
+ quirk_amd_dwc_class);
/*
* Synopsys USB 3.x host HAPS platform has a class code of
diff --git a/drivers/platform/mellanox/mlxbf-tmfifo.c b/drivers/platform/mellanox/mlxbf-tmfifo.c
index 194f3205e559..767f4406e55f 100644
--- a/drivers/platform/mellanox/mlxbf-tmfifo.c
+++ b/drivers/platform/mellanox/mlxbf-tmfifo.c
@@ -588,24 +588,25 @@ static void mlxbf_tmfifo_rxtx_word(struct mlxbf_tmfifo_vring *vring,
if (vring->cur_len + sizeof(u64) <= len) {
/* The whole word. */
- if (!IS_VRING_DROP(vring)) {
- if (is_rx)
+ if (is_rx) {
+ if (!IS_VRING_DROP(vring))
memcpy(addr + vring->cur_len, &data,
sizeof(u64));
- else
- memcpy(&data, addr + vring->cur_len,
- sizeof(u64));
+ } else {
+ memcpy(&data, addr + vring->cur_len,
+ sizeof(u64));
}
vring->cur_len += sizeof(u64);
} else {
/* Leftover bytes. */
- if (!IS_VRING_DROP(vring)) {
- if (is_rx)
+ if (is_rx) {
+ if (!IS_VRING_DROP(vring))
memcpy(addr + vring->cur_len, &data,
len - vring->cur_len);
- else
- memcpy(&data, addr + vring->cur_len,
- len - vring->cur_len);
+ } else {
+ data = 0;
+ memcpy(&data, addr + vring->cur_len,
+ len - vring->cur_len);
}
vring->cur_len = len;
}
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
index 4f31b68642a0..6faf213f687a 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -18,7 +18,7 @@
#include <linux/i8042.h>
#define ASUS_WMI_KEY_IGNORE (-1)
-#define ASUS_WMI_BRN_DOWN 0x20
+#define ASUS_WMI_BRN_DOWN 0x2e
#define ASUS_WMI_BRN_UP 0x2f
struct module;
diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index f65db95e78aa..2dea1e7487bb 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -1379,6 +1379,7 @@ static void qcom_glink_rpdev_release(struct device *dev)
struct glink_channel *channel = to_glink_channel(rpdev->ept);
channel->rpdev = NULL;
+ kfree(rpdev->driver_override);
kfree(rpdev);
}
diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
index c1d4990beab0..865d977668cc 100644
--- a/drivers/rpmsg/rpmsg_core.c
+++ b/drivers/rpmsg/rpmsg_core.c
@@ -332,7 +332,8 @@ field##_store(struct device *dev, struct device_attribute *attr, \
const char *buf, size_t sz) \
{ \
struct rpmsg_device *rpdev = to_rpmsg_device(dev); \
- char *new, *old; \
+ const char *old; \
+ char *new; \
\
new = kstrndup(buf, sz, GFP_KERNEL); \
if (!new) \
@@ -525,24 +526,52 @@ static struct bus_type rpmsg_bus = {
.remove = rpmsg_dev_remove,
};
-int rpmsg_register_device(struct rpmsg_device *rpdev)
+/*
+ * A helper for registering rpmsg device with driver override and name.
+ * Drivers should not be using it, but instead rpmsg_register_device().
+ */
+int rpmsg_register_device_override(struct rpmsg_device *rpdev,
+ const char *driver_override)
{
struct device *dev = &rpdev->dev;
int ret;
+ if (driver_override)
+ strcpy(rpdev->id.name, driver_override);
+
dev_set_name(&rpdev->dev, "%s.%s.%d.%d", dev_name(dev->parent),
rpdev->id.name, rpdev->src, rpdev->dst);
rpdev->dev.bus = &rpmsg_bus;
- ret = device_register(&rpdev->dev);
+ device_initialize(dev);
+ if (driver_override) {
+ ret = driver_set_override(dev, &rpdev->driver_override,
+ driver_override,
+ strlen(driver_override));
+ if (ret) {
+ dev_err(dev, "device_set_override failed: %d\n", ret);
+ put_device(dev);
+ return ret;
+ }
+ }
+
+ ret = device_add(dev);
if (ret) {
- dev_err(dev, "device_register failed: %d\n", ret);
+ dev_err(dev, "device_add failed: %d\n", ret);
+ kfree(rpdev->driver_override);
+ rpdev->driver_override = NULL;
put_device(&rpdev->dev);
}
return ret;
}
+EXPORT_SYMBOL(rpmsg_register_device_override);
+
+int rpmsg_register_device(struct rpmsg_device *rpdev)
+{
+ return rpmsg_register_device_override(rpdev, NULL);
+}
EXPORT_SYMBOL(rpmsg_register_device);
/*
diff --git a/drivers/rpmsg/rpmsg_internal.h b/drivers/rpmsg/rpmsg_internal.h
index 3fc83cd50e98..f305279e2e24 100644
--- a/drivers/rpmsg/rpmsg_internal.h
+++ b/drivers/rpmsg/rpmsg_internal.h
@@ -84,10 +84,7 @@ struct device *rpmsg_find_device(struct device *parent,
*/
static inline int rpmsg_chrdev_register_device(struct rpmsg_device *rpdev)
{
- strcpy(rpdev->id.name, "rpmsg_chrdev");
- rpdev->driver_override = "rpmsg_chrdev";
-
- return rpmsg_register_device(rpdev);
+ return rpmsg_register_device_override(rpdev, "rpmsg_ctrl");
}
#endif
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 044a00edb545..4731e464dfb9 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -11138,8 +11138,10 @@ _mpt3sas_init(void)
mpt3sas_ctl_init(hbas_to_enumerate);
error = pci_register_driver(&mpt3sas_driver);
- if (error)
+ if (error) {
+ mpt3sas_ctl_exit(hbas_to_enumerate);
scsih_exit();
+ }
return error;
}
diff --git a/drivers/spi/spi-npcm-fiu.c b/drivers/spi/spi-npcm-fiu.c
index 1e770d673905..cc4e29cd86da 100644
--- a/drivers/spi/spi-npcm-fiu.c
+++ b/drivers/spi/spi-npcm-fiu.c
@@ -334,8 +334,9 @@ static int npcm_fiu_uma_read(struct spi_mem *mem,
uma_cfg |= ilog2(op->cmd.buswidth);
uma_cfg |= ilog2(op->addr.buswidth)
<< NPCM_FIU_UMA_CFG_ADBPCK_SHIFT;
- uma_cfg |= ilog2(op->dummy.buswidth)
- << NPCM_FIU_UMA_CFG_DBPCK_SHIFT;
+ if (op->dummy.nbytes)
+ uma_cfg |= ilog2(op->dummy.buswidth)
+ << NPCM_FIU_UMA_CFG_DBPCK_SHIFT;
uma_cfg |= ilog2(op->data.buswidth)
<< NPCM_FIU_UMA_CFG_RDBPCK_SHIFT;
uma_cfg |= op->dummy.nbytes << NPCM_FIU_UMA_CFG_DBSIZ_SHIFT;
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 5c7a2145b945..1ff5920e5278 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -5104,6 +5104,12 @@ static const struct pci_device_id serial_pci_tbl[] = {
0, 0,
pbn_b1_bt_1_115200 },
+ /*
+ * IntaShield IS-100
+ */
+ { PCI_VENDOR_ID_INTASHIELD, 0x0D60,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_b2_1_115200 },
/*
* IntaShield IS-200
*/
@@ -5131,10 +5137,14 @@ static const struct pci_device_id serial_pci_tbl[] = {
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
pbn_b2_1_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x0AA2,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_1_115200 },
/*
- * Brainboxes UC-257
+ * Brainboxes UC-253/UC-734
*/
- { PCI_VENDOR_ID_INTASHIELD, 0x0861,
+ { PCI_VENDOR_ID_INTASHIELD, 0x0CA1,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
pbn_b2_2_115200 },
@@ -5149,6 +5159,66 @@ static const struct pci_device_id serial_pci_tbl[] = {
PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_COMMUNICATION_MULTISERIAL << 8, 0xffff00,
pbn_b2_4_115200 },
+ /*
+ * Brainboxes UP-189
+ */
+ { PCI_VENDOR_ID_INTASHIELD, 0x0AC1,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x0AC2,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x0AC3,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ /*
+ * Brainboxes UP-200
+ */
+ { PCI_VENDOR_ID_INTASHIELD, 0x0B21,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x0B22,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x0B23,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ /*
+ * Brainboxes UP-869
+ */
+ { PCI_VENDOR_ID_INTASHIELD, 0x0C01,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x0C02,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x0C03,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ /*
+ * Brainboxes UP-880
+ */
+ { PCI_VENDOR_ID_INTASHIELD, 0x0C21,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x0C22,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x0C23,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
/*
* Brainboxes UC-268
*/
@@ -5170,6 +5240,14 @@ static const struct pci_device_id serial_pci_tbl[] = {
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x08E2,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x08E3,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
/*
* Brainboxes UC-310
*/
@@ -5180,6 +5258,14 @@ static const struct pci_device_id serial_pci_tbl[] = {
/*
* Brainboxes UC-313
*/
+ { PCI_VENDOR_ID_INTASHIELD, 0x08A1,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x08A2,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
{ PCI_VENDOR_ID_INTASHIELD, 0x08A3,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
@@ -5194,6 +5280,10 @@ static const struct pci_device_id serial_pci_tbl[] = {
/*
* Brainboxes UC-346
*/
+ { PCI_VENDOR_ID_INTASHIELD, 0x0B01,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_4_115200 },
{ PCI_VENDOR_ID_INTASHIELD, 0x0B02,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
@@ -5205,6 +5295,10 @@ static const struct pci_device_id serial_pci_tbl[] = {
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x0A82,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
{ PCI_VENDOR_ID_INTASHIELD, 0x0A83,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
@@ -5217,12 +5311,34 @@ static const struct pci_device_id serial_pci_tbl[] = {
0, 0,
pbn_b2_4_115200 },
/*
- * Brainboxes UC-420/431
+ * Brainboxes UC-420
*/
{ PCI_VENDOR_ID_INTASHIELD, 0x0921,
PCI_ANY_ID, PCI_ANY_ID,
0, 0,
pbn_b2_4_115200 },
+ /*
+ * Brainboxes UC-607
+ */
+ { PCI_VENDOR_ID_INTASHIELD, 0x09A1,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x09A2,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ { PCI_VENDOR_ID_INTASHIELD, 0x09A3,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_2_115200 },
+ /*
+ * Brainboxes UC-836
+ */
+ { PCI_VENDOR_ID_INTASHIELD, 0x0D41,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0,
+ pbn_b2_4_115200 },
/*
* Perle PCI-RAS cards
*/
diff --git a/drivers/usb/storage/unusual_cypress.h b/drivers/usb/storage/unusual_cypress.h
index fb99e526cd48..7f7534098d53 100644
--- a/drivers/usb/storage/unusual_cypress.h
+++ b/drivers/usb/storage/unusual_cypress.h
@@ -19,7 +19,7 @@ UNUSUAL_DEV( 0x04b4, 0x6831, 0x0000, 0x9999,
"Cypress ISD-300LP",
USB_SC_CYP_ATACB, USB_PR_DEVICE, NULL, 0),
-UNUSUAL_DEV( 0x14cd, 0x6116, 0x0160, 0x0160,
+UNUSUAL_DEV( 0x14cd, 0x6116, 0x0150, 0x0160,
"Super Top",
"USB 2.0 SATA BRIDGE",
USB_SC_CYP_ATACB, USB_PR_DEVICE, NULL, 0),
diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
index 6dda5d885a03..bb9ecf12e763 100644
--- a/drivers/video/fbdev/aty/atyfb_base.c
+++ b/drivers/video/fbdev/aty/atyfb_base.c
@@ -3410,11 +3410,15 @@ static int atyfb_setup_generic(struct pci_dev *pdev, struct fb_info *info,
}
info->fix.mmio_start = raddr;
+#if defined(__i386__) || defined(__ia64__)
/*
* By using strong UC we force the MTRR to never have an
* effect on the MMIO region on both non-PAT and PAT systems.
*/
par->ati_regbase = ioremap_uc(info->fix.mmio_start, 0x1000);
+#else
+ par->ati_regbase = ioremap(info->fix.mmio_start, 0x1000);
+#endif
if (par->ati_regbase == NULL)
return -ENOMEM;
diff --git a/drivers/video/fbdev/uvesafb.c b/drivers/video/fbdev/uvesafb.c
index 7d3af1d19ad3..115653ba761c 100644
--- a/drivers/video/fbdev/uvesafb.c
+++ b/drivers/video/fbdev/uvesafb.c
@@ -1933,10 +1933,10 @@ static void uvesafb_exit(void)
}
}
- cn_del_callback(&uvesafb_cn_id);
driver_remove_file(&uvesafb_driver.driver, &driver_attr_v86d);
platform_device_unregister(uvesafb_device);
platform_driver_unregister(&uvesafb_driver);
+ cn_del_callback(&uvesafb_cn_id);
}
module_exit(uvesafb_exit);
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 1e444826a66e..4c44bbe1ae7c 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -365,7 +365,11 @@ static inline s64 towards_target(struct virtio_balloon *vb)
if (!virtio_has_feature(vb->vdev, VIRTIO_F_VERSION_1))
num_pages = le32_to_cpu((__force __le32)num_pages);
- target = num_pages;
+ /*
+ * Aligned up to guest page size to avoid inflating and deflating
+ * balloon endlessly.
+ */
+ target = ALIGN(num_pages, VIRTIO_BALLOON_PAGES_PER_PAGE);
return target - vb->num_pages;
}
diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index aee8b5ce8b63..db1015db07b5 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -567,14 +567,17 @@ static int virtio_mmio_probe(struct platform_device *pdev)
spin_lock_init(&vm_dev->lock);
vm_dev->base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(vm_dev->base))
- return PTR_ERR(vm_dev->base);
+ if (IS_ERR(vm_dev->base)) {
+ rc = PTR_ERR(vm_dev->base);
+ goto free_vm_dev;
+ }
/* Check magic value */
magic = readl(vm_dev->base + VIRTIO_MMIO_MAGIC_VALUE);
if (magic != ('v' | 'i' << 8 | 'r' << 16 | 't' << 24)) {
dev_warn(&pdev->dev, "Wrong magic value 0x%08lx!\n", magic);
- return -ENODEV;
+ rc = -ENODEV;
+ goto free_vm_dev;
}
/* Check device version */
@@ -582,7 +585,8 @@ static int virtio_mmio_probe(struct platform_device *pdev)
if (vm_dev->version < 1 || vm_dev->version > 2) {
dev_err(&pdev->dev, "Version %ld not supported!\n",
vm_dev->version);
- return -ENXIO;
+ rc = -ENXIO;
+ goto free_vm_dev;
}
vm_dev->vdev.id.device = readl(vm_dev->base + VIRTIO_MMIO_DEVICE_ID);
@@ -591,7 +595,8 @@ static int virtio_mmio_probe(struct platform_device *pdev)
* virtio-mmio device with an ID 0 is a (dummy) placeholder
* with no function. End probing now with no error reported.
*/
- return -ENODEV;
+ rc = -ENODEV;
+ goto free_vm_dev;
}
vm_dev->vdev.id.vendor = readl(vm_dev->base + VIRTIO_MMIO_VENDOR_ID);
@@ -621,6 +626,10 @@ static int virtio_mmio_probe(struct platform_device *pdev)
put_device(&vm_dev->vdev.dev);
return rc;
+
+free_vm_dev:
+ kfree(vm_dev);
+ return rc;
}
static int virtio_mmio_remove(struct platform_device *pdev)
diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c
index 2f2a1d980cdf..0842a1af0b98 100644
--- a/fs/cifs/smbdirect.c
+++ b/fs/cifs/smbdirect.c
@@ -607,8 +607,13 @@ static struct rdma_cm_id *smbd_create_id(
log_rdma_event(ERR, "rdma_resolve_addr() failed %i\n", rc);
goto out;
}
- wait_for_completion_interruptible_timeout(
+ rc = wait_for_completion_interruptible_timeout(
&info->ri_done, msecs_to_jiffies(RDMA_RESOLVE_TIMEOUT));
+ /* e.g. if interrupted returns -ERESTARTSYS */
+ if (rc < 0) {
+ log_rdma_event(ERR, "rdma_resolve_addr timeout rc: %i\n", rc);
+ goto out;
+ }
rc = info->ri_rc;
if (rc) {
log_rdma_event(ERR, "rdma_resolve_addr() completed %i\n", rc);
@@ -621,8 +626,13 @@ static struct rdma_cm_id *smbd_create_id(
log_rdma_event(ERR, "rdma_resolve_route() failed %i\n", rc);
goto out;
}
- wait_for_completion_interruptible_timeout(
+ rc = wait_for_completion_interruptible_timeout(
&info->ri_done, msecs_to_jiffies(RDMA_RESOLVE_TIMEOUT));
+ /* e.g. if interrupted returns -ERESTARTSYS */
+ if (rc < 0) {
+ log_rdma_event(ERR, "rdma_resolve_addr timeout rc: %i\n", rc);
+ goto out;
+ }
rc = info->ri_rc;
if (rc) {
log_rdma_event(ERR, "rdma_resolve_route() completed %i\n", rc);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 9099e112fda5..a0ec645bd7ed 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3094,8 +3094,7 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb);
struct ext4_super_block *es = sbi->s_es;
int bsbits, max;
- ext4_lblk_t end;
- loff_t size, start_off;
+ loff_t size, start_off, end;
loff_t orig_size __maybe_unused;
ext4_lblk_t start;
struct ext4_inode_info *ei = EXT4_I(ac->ac_inode);
@@ -3124,7 +3123,7 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
/* first, let's learn actual file size
* given current request is allocated */
- size = ac->ac_o_ex.fe_logical + EXT4_C2B(sbi, ac->ac_o_ex.fe_len);
+ size = extent_logical_end(sbi, &ac->ac_o_ex);
size = size << bsbits;
if (size < i_size_read(ac->ac_inode))
size = i_size_read(ac->ac_inode);
@@ -3203,7 +3202,7 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
/* check we don't cross already preallocated blocks */
rcu_read_lock();
list_for_each_entry_rcu(pa, &ei->i_prealloc_list, pa_inode_list) {
- ext4_lblk_t pa_end;
+ loff_t pa_end;
if (pa->pa_deleted)
continue;
@@ -3213,8 +3212,7 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
continue;
}
- pa_end = pa->pa_lstart + EXT4_C2B(EXT4_SB(ac->ac_sb),
- pa->pa_len);
+ pa_end = pa_logical_end(EXT4_SB(ac->ac_sb), pa);
/* PA must not overlap original request */
BUG_ON(!(ac->ac_o_ex.fe_logical >= pa_end ||
@@ -3243,12 +3241,11 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
/* XXX: extra loop to check we really don't overlap preallocations */
rcu_read_lock();
list_for_each_entry_rcu(pa, &ei->i_prealloc_list, pa_inode_list) {
- ext4_lblk_t pa_end;
+ loff_t pa_end;
spin_lock(&pa->pa_lock);
if (pa->pa_deleted == 0) {
- pa_end = pa->pa_lstart + EXT4_C2B(EXT4_SB(ac->ac_sb),
- pa->pa_len);
+ pa_end = pa_logical_end(EXT4_SB(ac->ac_sb), pa);
BUG_ON(!(start >= pa_end || end <= pa->pa_lstart));
}
spin_unlock(&pa->pa_lock);
@@ -3462,8 +3459,7 @@ ext4_mb_use_preallocated(struct ext4_allocation_context *ac)
/* all fields in this condition don't change,
* so we can skip locking for them */
if (ac->ac_o_ex.fe_logical < pa->pa_lstart ||
- ac->ac_o_ex.fe_logical >= (pa->pa_lstart +
- EXT4_C2B(sbi, pa->pa_len)))
+ ac->ac_o_ex.fe_logical >= pa_logical_end(sbi, pa))
continue;
/* non-extent files can't have physical blocks past 2^32 */
@@ -3684,8 +3680,11 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
return -ENOMEM;
if (ac->ac_b_ex.fe_len < ac->ac_g_ex.fe_len) {
- int new_bex_start;
- int new_bex_end;
+ struct ext4_free_extent ex = {
+ .fe_logical = ac->ac_g_ex.fe_logical,
+ .fe_len = ac->ac_g_ex.fe_len,
+ };
+ loff_t orig_goal_end = extent_logical_end(sbi, &ex);
/* we can't allocate as much as normalizer wants.
* so, found space must get proper lstart
@@ -3704,29 +3703,23 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
* still cover original start
* 3. Else, keep the best ex at start of original request.
*/
- new_bex_end = ac->ac_g_ex.fe_logical +
- EXT4_C2B(sbi, ac->ac_g_ex.fe_len);
- new_bex_start = new_bex_end - EXT4_C2B(sbi, ac->ac_b_ex.fe_len);
- if (ac->ac_o_ex.fe_logical >= new_bex_start)
- goto adjust_bex;
+ ex.fe_len = ac->ac_b_ex.fe_len;
- new_bex_start = ac->ac_g_ex.fe_logical;
- new_bex_end =
- new_bex_start + EXT4_C2B(sbi, ac->ac_b_ex.fe_len);
- if (ac->ac_o_ex.fe_logical < new_bex_end)
+ ex.fe_logical = orig_goal_end - EXT4_C2B(sbi, ex.fe_len);
+ if (ac->ac_o_ex.fe_logical >= ex.fe_logical)
goto adjust_bex;
- new_bex_start = ac->ac_o_ex.fe_logical;
- new_bex_end =
- new_bex_start + EXT4_C2B(sbi, ac->ac_b_ex.fe_len);
+ ex.fe_logical = ac->ac_g_ex.fe_logical;
+ if (ac->ac_o_ex.fe_logical < extent_logical_end(sbi, &ex))
+ goto adjust_bex;
+ ex.fe_logical = ac->ac_o_ex.fe_logical;
adjust_bex:
- ac->ac_b_ex.fe_logical = new_bex_start;
+ ac->ac_b_ex.fe_logical = ex.fe_logical;
BUG_ON(ac->ac_o_ex.fe_logical < ac->ac_b_ex.fe_logical);
BUG_ON(ac->ac_o_ex.fe_len > ac->ac_b_ex.fe_len);
- BUG_ON(new_bex_end > (ac->ac_g_ex.fe_logical +
- EXT4_C2B(sbi, ac->ac_g_ex.fe_len)));
+ BUG_ON(extent_logical_end(sbi, &ex) > orig_goal_end);
}
/* preallocation can change ac_b_ex, thus we store actually
@@ -4234,7 +4227,7 @@ static void ext4_mb_group_or_file(struct ext4_allocation_context *ac)
if (unlikely(ac->ac_flags & EXT4_MB_HINT_GOAL_ONLY))
return;
- size = ac->ac_o_ex.fe_logical + EXT4_C2B(sbi, ac->ac_o_ex.fe_len);
+ size = extent_logical_end(sbi, &ac->ac_o_ex);
isize = (i_size_read(ac->ac_inode) + ac->ac_sb->s_blocksize - 1)
>> bsbits;
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h
index 88c98f17e3d9..4e442bad6d73 100644
--- a/fs/ext4/mballoc.h
+++ b/fs/ext4/mballoc.h
@@ -199,6 +199,20 @@ static inline ext4_fsblk_t ext4_grp_offs_to_block(struct super_block *sb,
(fex->fe_start << EXT4_SB(sb)->s_cluster_bits);
}
+static inline loff_t extent_logical_end(struct ext4_sb_info *sbi,
+ struct ext4_free_extent *fex)
+{
+ /* Use loff_t to avoid end exceeding ext4_lblk_t max. */
+ return (loff_t)fex->fe_logical + EXT4_C2B(sbi, fex->fe_len);
+}
+
+static inline loff_t pa_logical_end(struct ext4_sb_info *sbi,
+ struct ext4_prealloc_space *pa)
+{
+ /* Use loff_t to avoid end exceeding ext4_lblk_t max. */
+ return (loff_t)pa->pa_lstart + EXT4_C2B(sbi, pa->pa_len);
+}
+
typedef int (*ext4_mballoc_query_range_fn)(
struct super_block *sb,
ext4_group_t agno,
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 939be9df0207..d26b3fe38bd9 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1069,7 +1069,8 @@ static int gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
if (phase == 3) {
inode = f2fs_iget(sb, dni.ino);
- if (IS_ERR(inode) || is_bad_inode(inode))
+ if (IS_ERR(inode) || is_bad_inode(inode) ||
+ special_file(inode->i_mode))
continue;
if (!down_write_trylock(
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index b6f4b552c9af..6aa968bee0ce 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1689,6 +1689,12 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
if (!flen || isdotent(fname, flen) || !tlen || isdotent(tname, tlen))
goto out;
+ err = (rqstp->rq_vers == 2) ? nfserr_acces : nfserr_xdev;
+ if (ffhp->fh_export->ex_path.mnt != tfhp->fh_export->ex_path.mnt)
+ goto out;
+ if (ffhp->fh_export->ex_path.dentry != tfhp->fh_export->ex_path.dentry)
+ goto out;
+
retry:
host_err = fh_want_write(ffhp);
if (host_err) {
@@ -1723,12 +1729,6 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
if (ndentry == trap)
goto out_dput_new;
- host_err = -EXDEV;
- if (ffhp->fh_export->ex_path.mnt != tfhp->fh_export->ex_path.mnt)
- goto out_dput_new;
- if (ffhp->fh_export->ex_path.dentry != tfhp->fh_export->ex_path.dentry)
- goto out_dput_new;
-
if (nfsd_has_cached_files(ndentry)) {
has_cached = true;
goto out_dput_old;
diff --git a/include/linux/device.h b/include/linux/device.h
index c7be3a8073ec..af4ecbf88910 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -422,6 +422,8 @@ extern int __must_check driver_create_file(struct device_driver *driver,
extern void driver_remove_file(struct device_driver *driver,
const struct driver_attribute *attr);
+int driver_set_override(struct device *dev, const char **override,
+ const char *s, size_t len);
extern int __must_check driver_for_each_device(struct device_driver *drv,
struct device *start,
void *data,
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index d35000669db5..fcacf2334704 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -554,6 +554,7 @@
#define PCI_DEVICE_ID_AMD_17H_M30H_DF_F3 0x1493
#define PCI_DEVICE_ID_AMD_17H_M60H_DF_F3 0x144b
#define PCI_DEVICE_ID_AMD_17H_M70H_DF_F3 0x1443
+#define PCI_DEVICE_ID_AMD_VANGOGH_USB 0x163a
#define PCI_DEVICE_ID_AMD_19H_DF_F3 0x1653
#define PCI_DEVICE_ID_AMD_CNB17H_F3 0x1703
#define PCI_DEVICE_ID_AMD_LANCE 0x2000
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 569f446502be..c7bd8a1a6097 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -29,7 +29,11 @@ struct platform_device {
struct resource *resource;
const struct platform_device_id *id_entry;
- char *driver_override; /* Driver name to force a match */
+ /*
+ * Driver name to force a match. Do not set directly, because core
+ * frees it. Use driver_set_override() to set or clear it.
+ */
+ const char *driver_override;
/* MFD cell pointer */
struct mfd_cell *mfd_cell;
diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h
index a68972b097b7..267533fecbdd 100644
--- a/include/linux/rpmsg.h
+++ b/include/linux/rpmsg.h
@@ -41,7 +41,9 @@ struct rpmsg_channel_info {
* rpmsg_device - device that belong to the rpmsg bus
* @dev: the device struct
* @id: device id (used to match between rpmsg drivers and devices)
- * @driver_override: driver name to force a match
+ * @driver_override: driver name to force a match; do not set directly,
+ * because core frees it; use driver_set_override() to
+ * set or clear it.
* @src: local address
* @dst: destination address
* @ept: the rpmsg endpoint of this channel
@@ -50,7 +52,7 @@ struct rpmsg_channel_info {
struct rpmsg_device {
struct device dev;
struct rpmsg_device_id id;
- char *driver_override;
+ const char *driver_override;
u32 src;
u32 dst;
struct rpmsg_endpoint *ept;
@@ -113,6 +115,8 @@ struct rpmsg_driver {
#if IS_ENABLED(CONFIG_RPMSG)
+int rpmsg_register_device_override(struct rpmsg_device *rpdev,
+ const char *driver_override);
int register_rpmsg_device(struct rpmsg_device *dev);
void unregister_rpmsg_device(struct rpmsg_device *dev);
int __register_rpmsg_driver(struct rpmsg_driver *drv, struct module *owner);
@@ -137,6 +141,12 @@ __poll_t rpmsg_poll(struct rpmsg_endpoint *ept, struct file *filp,
#else
+static inline int rpmsg_register_device_override(struct rpmsg_device *rpdev,
+ const char *driver_override)
+{
+ return -ENXIO;
+}
+
static inline int register_rpmsg_device(struct rpmsg_device *dev)
{
return -ENXIO;
diff --git a/include/uapi/linux/gtp.h b/include/uapi/linux/gtp.h
index c7d66755d212..78bd62014efd 100644
--- a/include/uapi/linux/gtp.h
+++ b/include/uapi/linux/gtp.h
@@ -30,6 +30,6 @@ enum gtp_attrs {
GTPA_PAD,
__GTPA_MAX,
};
-#define GTPA_MAX (__GTPA_MAX + 1)
+#define GTPA_MAX (__GTPA_MAX - 1)
#endif /* _UAPI_LINUX_GTP_H_ */
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 884cb4aaf342..cd32c7e55568 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -12015,7 +12015,8 @@ static int inherit_group(struct perf_event *parent_event,
!perf_get_aux_event(child_ctr, leader))
return -EINVAL;
}
- leader->group_generation = parent_event->group_generation;
+ if (leader)
+ leader->group_generation = parent_event->group_generation;
return 0;
}
diff --git a/lib/kobject.c b/lib/kobject.c
index c4025a880d75..6666c48f125c 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -144,7 +144,7 @@ static int get_kobj_path_length(struct kobject *kobj)
return length;
}
-static void fill_kobj_path(struct kobject *kobj, char *path, int length)
+static int fill_kobj_path(struct kobject *kobj, char *path, int length)
{
struct kobject *parent;
@@ -153,12 +153,16 @@ static void fill_kobj_path(struct kobject *kobj, char *path, int length)
int cur = strlen(kobject_name(parent));
/* back up enough to print this name with '/' */
length -= cur;
+ if (length <= 0)
+ return -EINVAL;
memcpy(path + length, kobject_name(parent), cur);
*(path + --length) = '/';
}
pr_debug("kobject: '%s' (%p): %s: path = '%s'\n", kobject_name(kobj),
kobj, __func__, path);
+
+ return 0;
}
/**
@@ -173,13 +177,17 @@ char *kobject_get_path(struct kobject *kobj, gfp_t gfp_mask)
char *path;
int len;
+retry:
len = get_kobj_path_length(kobj);
if (len == 0)
return NULL;
path = kzalloc(len, gfp_mask);
if (!path)
return NULL;
- fill_kobj_path(kobj, path, len);
+ if (fill_kobj_path(kobj, path, len)) {
+ kfree(path);
+ goto retry;
+ }
return path;
}
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index c0489d8812c0..9d631b7adb7b 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -224,7 +224,8 @@ bool neigh_remove_one(struct neighbour *ndel, struct neigh_table *tbl)
static int neigh_forced_gc(struct neigh_table *tbl)
{
- int max_clean = atomic_read(&tbl->gc_entries) - tbl->gc_thresh2;
+ int max_clean = atomic_read(&tbl->gc_entries) -
+ READ_ONCE(tbl->gc_thresh2);
unsigned long tref = jiffies - 5 * HZ;
struct neighbour *n, *tmp;
int shrunk = 0;
@@ -253,7 +254,7 @@ static int neigh_forced_gc(struct neigh_table *tbl)
}
}
- tbl->last_flush = jiffies;
+ WRITE_ONCE(tbl->last_flush, jiffies);
write_unlock_bh(&tbl->lock);
@@ -409,17 +410,17 @@ static struct neighbour *neigh_alloc(struct neigh_table *tbl,
{
struct neighbour *n = NULL;
unsigned long now = jiffies;
- int entries;
+ int entries, gc_thresh3;
if (exempt_from_gc)
goto do_alloc;
entries = atomic_inc_return(&tbl->gc_entries) - 1;
- if (entries >= tbl->gc_thresh3 ||
- (entries >= tbl->gc_thresh2 &&
- time_after(now, tbl->last_flush + 5 * HZ))) {
- if (!neigh_forced_gc(tbl) &&
- entries >= tbl->gc_thresh3) {
+ gc_thresh3 = READ_ONCE(tbl->gc_thresh3);
+ if (entries >= gc_thresh3 ||
+ (entries >= READ_ONCE(tbl->gc_thresh2) &&
+ time_after(now, READ_ONCE(tbl->last_flush) + 5 * HZ))) {
+ if (!neigh_forced_gc(tbl) && entries >= gc_thresh3) {
net_info_ratelimited("%s: neighbor table overflow!\n",
tbl->id);
NEIGH_CACHE_STAT_INC(tbl, table_fulls);
@@ -902,13 +903,14 @@ static void neigh_periodic_work(struct work_struct *work)
if (time_after(jiffies, tbl->last_rand + 300 * HZ)) {
struct neigh_parms *p;
- tbl->last_rand = jiffies;
+
+ WRITE_ONCE(tbl->last_rand, jiffies);
list_for_each_entry(p, &tbl->parms_list, list)
p->reachable_time =
neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME));
}
- if (atomic_read(&tbl->entries) < tbl->gc_thresh1)
+ if (atomic_read(&tbl->entries) < READ_ONCE(tbl->gc_thresh1))
goto out;
for (i = 0 ; i < (1 << nht->hash_shift); i++) {
@@ -2050,15 +2052,16 @@ static int neightbl_fill_info(struct sk_buff *skb, struct neigh_table *tbl,
ndtmsg->ndtm_pad2 = 0;
if (nla_put_string(skb, NDTA_NAME, tbl->id) ||
- nla_put_msecs(skb, NDTA_GC_INTERVAL, tbl->gc_interval, NDTA_PAD) ||
- nla_put_u32(skb, NDTA_THRESH1, tbl->gc_thresh1) ||
- nla_put_u32(skb, NDTA_THRESH2, tbl->gc_thresh2) ||
- nla_put_u32(skb, NDTA_THRESH3, tbl->gc_thresh3))
+ nla_put_msecs(skb, NDTA_GC_INTERVAL, READ_ONCE(tbl->gc_interval),
+ NDTA_PAD) ||
+ nla_put_u32(skb, NDTA_THRESH1, READ_ONCE(tbl->gc_thresh1)) ||
+ nla_put_u32(skb, NDTA_THRESH2, READ_ONCE(tbl->gc_thresh2)) ||
+ nla_put_u32(skb, NDTA_THRESH3, READ_ONCE(tbl->gc_thresh3)))
goto nla_put_failure;
{
unsigned long now = jiffies;
- long flush_delta = now - tbl->last_flush;
- long rand_delta = now - tbl->last_rand;
+ long flush_delta = now - READ_ONCE(tbl->last_flush);
+ long rand_delta = now - READ_ONCE(tbl->last_rand);
struct neigh_hash_table *nht;
struct ndt_config ndc = {
.ndtc_key_len = tbl->key_len,
@@ -2066,7 +2069,7 @@ static int neightbl_fill_info(struct sk_buff *skb, struct neigh_table *tbl,
.ndtc_entries = atomic_read(&tbl->entries),
.ndtc_last_flush = jiffies_to_msecs(flush_delta),
.ndtc_last_rand = jiffies_to_msecs(rand_delta),
- .ndtc_proxy_qlen = tbl->proxy_queue.qlen,
+ .ndtc_proxy_qlen = READ_ONCE(tbl->proxy_queue.qlen),
};
rcu_read_lock_bh();
@@ -2089,17 +2092,17 @@ static int neightbl_fill_info(struct sk_buff *skb, struct neigh_table *tbl,
struct neigh_statistics *st;
st = per_cpu_ptr(tbl->stats, cpu);
- ndst.ndts_allocs += st->allocs;
- ndst.ndts_destroys += st->destroys;
- ndst.ndts_hash_grows += st->hash_grows;
- ndst.ndts_res_failed += st->res_failed;
- ndst.ndts_lookups += st->lookups;
- ndst.ndts_hits += st->hits;
- ndst.ndts_rcv_probes_mcast += st->rcv_probes_mcast;
- ndst.ndts_rcv_probes_ucast += st->rcv_probes_ucast;
- ndst.ndts_periodic_gc_runs += st->periodic_gc_runs;
- ndst.ndts_forced_gc_runs += st->forced_gc_runs;
- ndst.ndts_table_fulls += st->table_fulls;
+ ndst.ndts_allocs += READ_ONCE(st->allocs);
+ ndst.ndts_destroys += READ_ONCE(st->destroys);
+ ndst.ndts_hash_grows += READ_ONCE(st->hash_grows);
+ ndst.ndts_res_failed += READ_ONCE(st->res_failed);
+ ndst.ndts_lookups += READ_ONCE(st->lookups);
+ ndst.ndts_hits += READ_ONCE(st->hits);
+ ndst.ndts_rcv_probes_mcast += READ_ONCE(st->rcv_probes_mcast);
+ ndst.ndts_rcv_probes_ucast += READ_ONCE(st->rcv_probes_ucast);
+ ndst.ndts_periodic_gc_runs += READ_ONCE(st->periodic_gc_runs);
+ ndst.ndts_forced_gc_runs += READ_ONCE(st->forced_gc_runs);
+ ndst.ndts_table_fulls += READ_ONCE(st->table_fulls);
}
if (nla_put_64bit(skb, NDTA_STATS, sizeof(ndst), &ndst,
@@ -2323,16 +2326,16 @@ static int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh,
goto errout_tbl_lock;
if (tb[NDTA_THRESH1])
- tbl->gc_thresh1 = nla_get_u32(tb[NDTA_THRESH1]);
+ WRITE_ONCE(tbl->gc_thresh1, nla_get_u32(tb[NDTA_THRESH1]));
if (tb[NDTA_THRESH2])
- tbl->gc_thresh2 = nla_get_u32(tb[NDTA_THRESH2]);
+ WRITE_ONCE(tbl->gc_thresh2, nla_get_u32(tb[NDTA_THRESH2]));
if (tb[NDTA_THRESH3])
- tbl->gc_thresh3 = nla_get_u32(tb[NDTA_THRESH3]);
+ WRITE_ONCE(tbl->gc_thresh3, nla_get_u32(tb[NDTA_THRESH3]));
if (tb[NDTA_GC_INTERVAL])
- tbl->gc_interval = nla_get_msecs(tb[NDTA_GC_INTERVAL]);
+ WRITE_ONCE(tbl->gc_interval, nla_get_msecs(tb[NDTA_GC_INTERVAL]));
err = 0;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index ec3c23adbab4..c3f227c4c356 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2057,16 +2057,17 @@ void tcp_enter_loss(struct sock *sk)
* restore sanity to the SACK scoreboard. If the apparent reneging
* persists until this RTO then we'll clear the SACK scoreboard.
*/
-static bool tcp_check_sack_reneging(struct sock *sk, int flag)
+static bool tcp_check_sack_reneging(struct sock *sk, int *ack_flag)
{
- if (flag & FLAG_SACK_RENEGING &&
- flag & FLAG_SND_UNA_ADVANCED) {
+ if (*ack_flag & FLAG_SACK_RENEGING &&
+ *ack_flag & FLAG_SND_UNA_ADVANCED) {
struct tcp_sock *tp = tcp_sk(sk);
unsigned long delay = max(usecs_to_jiffies(tp->srtt_us >> 4),
msecs_to_jiffies(10));
inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS,
delay, TCP_RTO_MAX);
+ *ack_flag &= ~FLAG_SET_XMIT_TIMER;
return true;
}
return false;
@@ -2840,7 +2841,7 @@ static void tcp_fastretrans_alert(struct sock *sk, const u32 prior_snd_una,
tp->prior_ssthresh = 0;
/* B. In all the states check for reneging SACKs. */
- if (tcp_check_sack_reneging(sk, flag))
+ if (tcp_check_sack_reneging(sk, ack_flag))
return;
/* C. Check consistency of the current state. */
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index f087baa95b07..80c09070ea9f 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -683,8 +683,8 @@ nfulnl_log_packet(struct net *net,
unsigned int plen = 0;
struct nfnl_log_net *log = nfnl_log_pernet(net);
const struct nfnl_ct_hook *nfnl_ct = NULL;
+ enum ip_conntrack_info ctinfo = 0;
struct nf_conn *ct = NULL;
- enum ip_conntrack_info ctinfo;
if (li_user && li_user->type == NF_LOG_TYPE_ULOG)
li = li_user;
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index a66e93a3af74..9fda0e5548dc 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -3241,6 +3241,8 @@ int rt5645_set_jack_detect(struct snd_soc_component *component,
RT5645_GP1_PIN_IRQ, RT5645_GP1_PIN_IRQ);
regmap_update_bits(rt5645->regmap, RT5645_GEN_CTRL1,
RT5645_DIG_GATE_CTRL, RT5645_DIG_GATE_CTRL);
+ regmap_update_bits(rt5645->regmap, RT5645_DEPOP_M1,
+ RT5645_HP_CB_MASK, RT5645_HP_CB_PU);
}
rt5645_irq(0, rt5645);
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc
new file mode 100644
index 000000000000..bc9514428dba
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc
@@ -0,0 +1,13 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Test failure of registering kprobe on non unique symbol
+# requires: kprobe_events
+
+SYMBOL='name_show'
+
+# We skip this test on kernel where SYMBOL is unique or does not exist.
+if [ "$(grep -c -E "[[:alnum:]]+ t ${SYMBOL}" /proc/kallsyms)" -le '1' ]; then
+ exit_unsupported
+fi
+
+! echo "p:test_non_unique ${SYMBOL}" > kprobe_events
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