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Message-ID: <20181020120503.GB14222@kroah.com>
Date: Sat, 20 Oct 2018 14:05:03 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, Jiri Slaby <jslaby@...e.cz>
Subject: Re: Linux 4.14.78
diff --git a/Makefile b/Makefile
index 16d1a18496fb..89574ee68d6b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 14
-SUBLEVEL = 77
+SUBLEVEL = 78
EXTRAVERSION =
NAME = Petit Gorille
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 6c1b20dd76ad..7c6c97782022 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -6,34 +6,12 @@
# published by the Free Software Foundation.
#
-ifeq ($(CROSS_COMPILE),)
-ifndef CONFIG_CPU_BIG_ENDIAN
-CROSS_COMPILE := arc-linux-
-else
-CROSS_COMPILE := arceb-linux-
-endif
-endif
-
KBUILD_DEFCONFIG := nsim_700_defconfig
cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__
cflags-$(CONFIG_ISA_ARCOMPACT) += -mA7
cflags-$(CONFIG_ISA_ARCV2) += -mcpu=archs
-is_700 = $(shell $(CC) -dM -E - < /dev/null | grep -q "ARC700" && echo 1 || echo 0)
-
-ifdef CONFIG_ISA_ARCOMPACT
-ifeq ($(is_700), 0)
- $(error Toolchain not configured for ARCompact builds)
-endif
-endif
-
-ifdef CONFIG_ISA_ARCV2
-ifeq ($(is_700), 1)
- $(error Toolchain not configured for ARCv2 builds)
-endif
-endif
-
ifdef CONFIG_ARC_CURR_IN_REG
# For a global register defintion, make sure it gets passed to every file
# We had a customer reported bug where some code built in kernel was NOT using
@@ -87,7 +65,7 @@ ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
# --build-id w/o "-marclinux". Default arc-elf32-ld is OK
ldflags-$(upto_gcc44) += -marclinux
-LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
+LIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
# Modules with short calls might break for calls into builtin-kernel
KBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode
diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h
index 2c895e8d07f7..812535f40124 100644
--- a/arch/powerpc/include/asm/code-patching.h
+++ b/arch/powerpc/include/asm/code-patching.h
@@ -31,6 +31,7 @@ unsigned int create_cond_branch(const unsigned int *addr,
unsigned long target, int flags);
int patch_branch(unsigned int *addr, unsigned long target, int flags);
int patch_instruction(unsigned int *addr, unsigned int instr);
+int raw_patch_instruction(unsigned int *addr, unsigned int instr);
int instr_is_relative_branch(unsigned int instr);
int instr_is_relative_link_branch(unsigned int instr);
diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S
index 1da12f521cb7..b735b727ed2b 100644
--- a/arch/powerpc/kernel/tm.S
+++ b/arch/powerpc/kernel/tm.S
@@ -167,13 +167,27 @@ _GLOBAL(tm_reclaim)
std r1, PACATMSCRATCH(r13)
ld r1, PACAR1(r13)
- /* Store the PPR in r11 and reset to decent value */
std r11, GPR11(r1) /* Temporary stash */
+ /*
+ * Move the saved user r1 to the kernel stack in case PACATMSCRATCH is
+ * clobbered by an exception once we turn on MSR_RI below.
+ */
+ ld r11, PACATMSCRATCH(r13)
+ std r11, GPR1(r1)
+
+ /*
+ * Store r13 away so we can free up the scratch SPR for the SLB fault
+ * handler (needed once we start accessing the thread_struct).
+ */
+ GET_SCRATCH0(r11)
+ std r11, GPR13(r1)
+
/* Reset MSR RI so we can take SLB faults again */
li r11, MSR_RI
mtmsrd r11, 1
+ /* Store the PPR in r11 and reset to decent value */
mfspr r11, SPRN_PPR
HMT_MEDIUM
@@ -198,11 +212,11 @@ _GLOBAL(tm_reclaim)
SAVE_GPR(8, r7) /* user r8 */
SAVE_GPR(9, r7) /* user r9 */
SAVE_GPR(10, r7) /* user r10 */
- ld r3, PACATMSCRATCH(r13) /* user r1 */
+ ld r3, GPR1(r1) /* user r1 */
ld r4, GPR7(r1) /* user r7 */
ld r5, GPR11(r1) /* user r11 */
ld r6, GPR12(r1) /* user r12 */
- GET_SCRATCH0(8) /* user r13 */
+ ld r8, GPR13(r1) /* user r13 */
std r3, GPR1(r7)
std r4, GPR7(r7)
std r5, GPR11(r7)
diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c
index 882c750dc519..130405158afa 100644
--- a/arch/powerpc/lib/code-patching.c
+++ b/arch/powerpc/lib/code-patching.c
@@ -39,7 +39,7 @@ static int __patch_instruction(unsigned int *exec_addr, unsigned int instr,
return 0;
}
-static int raw_patch_instruction(unsigned int *addr, unsigned int instr)
+int raw_patch_instruction(unsigned int *addr, unsigned int instr)
{
return __patch_instruction(addr, instr, addr);
}
@@ -156,7 +156,7 @@ static int do_patch_instruction(unsigned int *addr, unsigned int instr)
* when text_poke_area is not ready, but we still need
* to allow patching. We just do the plain old patching
*/
- if (!this_cpu_read(*PTRRELOC(&text_poke_area)))
+ if (!this_cpu_read(text_poke_area))
return raw_patch_instruction(addr, instr);
local_irq_save(flags);
diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c
index 762a899e85a4..e1bcdc32a851 100644
--- a/arch/powerpc/lib/feature-fixups.c
+++ b/arch/powerpc/lib/feature-fixups.c
@@ -63,7 +63,7 @@ static int patch_alt_instruction(unsigned int *src, unsigned int *dest,
}
}
- patch_instruction(dest, instr);
+ raw_patch_instruction(dest, instr);
return 0;
}
@@ -92,7 +92,7 @@ static int patch_feature_section(unsigned long value, struct fixup_entry *fcur)
}
for (; dest < end; dest++)
- patch_instruction(dest, PPC_INST_NOP);
+ raw_patch_instruction(dest, PPC_INST_NOP);
return 0;
}
@@ -292,7 +292,7 @@ void do_lwsync_fixups(unsigned long value, void *fixup_start, void *fixup_end)
for (; start < end; start++) {
dest = (void *)start + *start;
- patch_instruction(dest, PPC_INST_LWSYNC);
+ raw_patch_instruction(dest, PPC_INST_LWSYNC);
}
}
@@ -310,7 +310,7 @@ static void do_final_fixups(void)
length = (__end_interrupts - _stext) / sizeof(int);
while (length--) {
- patch_instruction(dest, *src);
+ raw_patch_instruction(dest, *src);
src++;
dest++;
}
diff --git a/drivers/clocksource/timer-fttmr010.c b/drivers/clocksource/timer-fttmr010.c
index cdf23b628688..cdfe1c82f3f0 100644
--- a/drivers/clocksource/timer-fttmr010.c
+++ b/drivers/clocksource/timer-fttmr010.c
@@ -130,13 +130,17 @@ static int fttmr010_timer_set_next_event(unsigned long cycles,
cr &= ~fttmr010->t1_enable_val;
writel(cr, fttmr010->base + TIMER_CR);
- /* Setup the match register forward/backward in time */
- cr = readl(fttmr010->base + TIMER1_COUNT);
- if (fttmr010->count_down)
- cr -= cycles;
- else
- cr += cycles;
- writel(cr, fttmr010->base + TIMER1_MATCH1);
+ if (fttmr010->count_down) {
+ /*
+ * ASPEED Timer Controller will load TIMER1_LOAD register
+ * into TIMER1_COUNT register when the timer is re-enabled.
+ */
+ writel(cycles, fttmr010->base + TIMER1_LOAD);
+ } else {
+ /* Setup the match register forward in time */
+ cr = readl(fttmr010->base + TIMER1_COUNT);
+ writel(cr + cycles, fttmr010->base + TIMER1_MATCH1);
+ }
/* Start */
cr = readl(fttmr010->base + TIMER_CR);
diff --git a/drivers/clocksource/timer-ti-32k.c b/drivers/clocksource/timer-ti-32k.c
index 880a861ab3c8..713214d085e0 100644
--- a/drivers/clocksource/timer-ti-32k.c
+++ b/drivers/clocksource/timer-ti-32k.c
@@ -98,6 +98,9 @@ static int __init ti_32k_timer_init(struct device_node *np)
return -ENXIO;
}
+ if (!of_machine_is_compatible("ti,am43"))
+ ti_32k_timer.cs.flags |= CLOCK_SOURCE_SUSPEND_NONSTOP;
+
ti_32k_timer.counter = ti_32k_timer.base;
/*
diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
index 1a57cc28955e..ff3348ee9595 100644
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@ -617,6 +617,7 @@ static int malidp_bind(struct device *dev)
drm->irq_enabled = true;
ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
+ drm_crtc_vblank_reset(&malidp->crtc);
if (ret < 0) {
DRM_ERROR("failed to initialise vblank\n");
goto vblank_fail;
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 562220ec9d41..c75f4ccbcdef 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -878,7 +878,6 @@ static int i915_driver_init_early(struct drm_i915_private *dev_priv,
spin_lock_init(&dev_priv->mm.object_stat_lock);
mutex_init(&dev_priv->sb_lock);
- mutex_init(&dev_priv->modeset_restore_lock);
mutex_init(&dev_priv->av_mutex);
mutex_init(&dev_priv->wm.wm_mutex);
mutex_init(&dev_priv->pps_mutex);
@@ -1505,11 +1504,6 @@ static int i915_drm_suspend(struct drm_device *dev)
pci_power_t opregion_target_state;
int error;
- /* ignore lid events during suspend */
- mutex_lock(&dev_priv->modeset_restore_lock);
- dev_priv->modeset_restore = MODESET_SUSPENDED;
- mutex_unlock(&dev_priv->modeset_restore_lock);
-
disable_rpm_wakeref_asserts(dev_priv);
/* We do a lot of poking in a lot of registers, make sure they work
@@ -1718,10 +1712,6 @@ static int i915_drm_resume(struct drm_device *dev)
intel_fbdev_set_suspend(dev, FBINFO_STATE_RUNNING, false);
- mutex_lock(&dev_priv->modeset_restore_lock);
- dev_priv->modeset_restore = MODESET_DONE;
- mutex_unlock(&dev_priv->modeset_restore_lock);
-
intel_opregion_notify_adapter(dev_priv, PCI_D0);
intel_autoenable_gt_powersave(dev_priv);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 51411894d2cd..41f51509c9e4 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1183,6 +1183,7 @@ enum intel_sbi_destination {
#define QUIRK_BACKLIGHT_PRESENT (1<<3)
#define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
#define QUIRK_INCREASE_T12_DELAY (1<<6)
+#define QUIRK_INCREASE_DDI_DISABLED_TIME (1<<7)
struct intel_fbdev;
struct intel_fbc_work;
@@ -1614,12 +1615,6 @@ struct i915_gpu_error {
unsigned long test_irq_rings;
};
-enum modeset_restore {
- MODESET_ON_LID_OPEN,
- MODESET_DONE,
- MODESET_SUSPENDED,
-};
-
#define DP_AUX_A 0x40
#define DP_AUX_B 0x10
#define DP_AUX_C 0x20
@@ -2296,8 +2291,6 @@ struct drm_i915_private {
unsigned long quirks;
- enum modeset_restore modeset_restore;
- struct mutex modeset_restore_lock;
struct drm_atomic_state *modeset_restore_state;
struct drm_modeset_acquire_ctx reset_ctx;
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 3a4a581345c4..77085b9bcb30 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1526,15 +1526,24 @@ void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state)
I915_WRITE(TRANS_DDI_FUNC_CTL(cpu_transcoder), temp);
}
-void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
- enum transcoder cpu_transcoder)
+void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state)
{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
i915_reg_t reg = TRANS_DDI_FUNC_CTL(cpu_transcoder);
uint32_t val = I915_READ(reg);
val &= ~(TRANS_DDI_FUNC_ENABLE | TRANS_DDI_PORT_MASK | TRANS_DDI_DP_VC_PAYLOAD_ALLOC);
val |= TRANS_DDI_PORT_NONE;
I915_WRITE(reg, val);
+
+ if (dev_priv->quirks & QUIRK_INCREASE_DDI_DISABLED_TIME &&
+ intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) {
+ DRM_DEBUG_KMS("Quirk Increase DDI disabled time\n");
+ /* Quirk time at 100ms for reliable operation */
+ msleep(100);
+ }
}
bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index cf648c526e12..2006ab44fbf9 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5653,7 +5653,7 @@ static void haswell_crtc_disable(struct intel_crtc_state *old_crtc_state,
intel_ddi_set_vc_payload_alloc(intel_crtc->config, false);
if (!transcoder_is_dsi(cpu_transcoder))
- intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
+ intel_ddi_disable_transcoder_func(old_crtc_state);
if (INTEL_GEN(dev_priv) >= 9)
skylake_scaler_disable(intel_crtc);
@@ -14286,6 +14286,18 @@ static void quirk_increase_t12_delay(struct drm_device *dev)
DRM_INFO("Applying T12 delay quirk\n");
}
+/*
+ * GeminiLake NUC HDMI outputs require additional off time
+ * this allows the onboard retimer to correctly sync to signal
+ */
+static void quirk_increase_ddi_disabled_time(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = to_i915(dev);
+
+ dev_priv->quirks |= QUIRK_INCREASE_DDI_DISABLED_TIME;
+ DRM_INFO("Applying Increase DDI Disabled quirk\n");
+}
+
struct intel_quirk {
int device;
int subsystem_vendor;
@@ -14372,6 +14384,13 @@ static struct intel_quirk intel_quirks[] = {
/* Toshiba Satellite P50-C-18C */
{ 0x191B, 0x1179, 0xF840, quirk_increase_t12_delay },
+
+ /* GeminiLake NUC */
+ { 0x3185, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
+ { 0x3184, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
+ /* ASRock ITX*/
+ { 0x3185, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
+ { 0x3184, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
};
static void intel_init_quirks(struct drm_device *dev)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 589905aab185..3adb9c3b412e 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1254,8 +1254,7 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port);
enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder);
bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state);
-void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
- enum transcoder cpu_transcoder);
+void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state);
void intel_ddi_enable_pipe_clock(const struct intel_crtc_state *crtc_state);
void intel_ddi_disable_pipe_clock(const struct intel_crtc_state *crtc_state);
struct intel_encoder *
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index dae4e22a2c3f..fe67e458b003 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -44,8 +44,6 @@
/* Private structure for the integrated LVDS support */
struct intel_lvds_connector {
struct intel_connector base;
-
- struct notifier_block lid_notifier;
};
struct intel_lvds_pps {
@@ -440,26 +438,9 @@ static bool intel_lvds_compute_config(struct intel_encoder *intel_encoder,
return true;
}
-/**
- * Detect the LVDS connection.
- *
- * Since LVDS doesn't have hotlug, we use the lid as a proxy. Open means
- * connected and closed means disconnected. We also send hotplug events as
- * needed, using lid status notification from the input layer.
- */
static enum drm_connector_status
intel_lvds_detect(struct drm_connector *connector, bool force)
{
- struct drm_i915_private *dev_priv = to_i915(connector->dev);
- enum drm_connector_status status;
-
- DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
- connector->base.id, connector->name);
-
- status = intel_panel_detect(dev_priv);
- if (status != connector_status_unknown)
- return status;
-
return connector_status_connected;
}
@@ -484,117 +465,6 @@ static int intel_lvds_get_modes(struct drm_connector *connector)
return 1;
}
-static int intel_no_modeset_on_lid_dmi_callback(const struct dmi_system_id *id)
-{
- DRM_INFO("Skipping forced modeset for %s\n", id->ident);
- return 1;
-}
-
-/* The GPU hangs up on these systems if modeset is performed on LID open */
-static const struct dmi_system_id intel_no_modeset_on_lid[] = {
- {
- .callback = intel_no_modeset_on_lid_dmi_callback,
- .ident = "Toshiba Tecra A11",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
- DMI_MATCH(DMI_PRODUCT_NAME, "TECRA A11"),
- },
- },
-
- { } /* terminating entry */
-};
-
-/*
- * Lid events. Note the use of 'modeset':
- * - we set it to MODESET_ON_LID_OPEN on lid close,
- * and set it to MODESET_DONE on open
- * - we use it as a "only once" bit (ie we ignore
- * duplicate events where it was already properly set)
- * - the suspend/resume paths will set it to
- * MODESET_SUSPENDED and ignore the lid open event,
- * because they restore the mode ("lid open").
- */
-static int intel_lid_notify(struct notifier_block *nb, unsigned long val,
- void *unused)
-{
- struct intel_lvds_connector *lvds_connector =
- container_of(nb, struct intel_lvds_connector, lid_notifier);
- struct drm_connector *connector = &lvds_connector->base.base;
- struct drm_device *dev = connector->dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
-
- if (dev->switch_power_state != DRM_SWITCH_POWER_ON)
- return NOTIFY_OK;
-
- mutex_lock(&dev_priv->modeset_restore_lock);
- if (dev_priv->modeset_restore == MODESET_SUSPENDED)
- goto exit;
- /*
- * check and update the status of LVDS connector after receiving
- * the LID nofication event.
- */
- connector->status = connector->funcs->detect(connector, false);
-
- /* Don't force modeset on machines where it causes a GPU lockup */
- if (dmi_check_system(intel_no_modeset_on_lid))
- goto exit;
- if (!acpi_lid_open()) {
- /* do modeset on next lid open event */
- dev_priv->modeset_restore = MODESET_ON_LID_OPEN;
- goto exit;
- }
-
- if (dev_priv->modeset_restore == MODESET_DONE)
- goto exit;
-
- /*
- * Some old platform's BIOS love to wreak havoc while the lid is closed.
- * We try to detect this here and undo any damage. The split for PCH
- * platforms is rather conservative and a bit arbitrary expect that on
- * those platforms VGA disabling requires actual legacy VGA I/O access,
- * and as part of the cleanup in the hw state restore we also redisable
- * the vga plane.
- */
- if (!HAS_PCH_SPLIT(dev_priv))
- intel_display_resume(dev);
-
- dev_priv->modeset_restore = MODESET_DONE;
-
-exit:
- mutex_unlock(&dev_priv->modeset_restore_lock);
- return NOTIFY_OK;
-}
-
-static int
-intel_lvds_connector_register(struct drm_connector *connector)
-{
- struct intel_lvds_connector *lvds = to_lvds_connector(connector);
- int ret;
-
- ret = intel_connector_register(connector);
- if (ret)
- return ret;
-
- lvds->lid_notifier.notifier_call = intel_lid_notify;
- if (acpi_lid_notifier_register(&lvds->lid_notifier)) {
- DRM_DEBUG_KMS("lid notifier registration failed\n");
- lvds->lid_notifier.notifier_call = NULL;
- }
-
- return 0;
-}
-
-static void
-intel_lvds_connector_unregister(struct drm_connector *connector)
-{
- struct intel_lvds_connector *lvds = to_lvds_connector(connector);
-
- if (lvds->lid_notifier.notifier_call)
- acpi_lid_notifier_unregister(&lvds->lid_notifier);
-
- intel_connector_unregister(connector);
-}
-
/**
* intel_lvds_destroy - unregister and free LVDS structures
* @connector: connector to free
@@ -627,8 +497,8 @@ static const struct drm_connector_funcs intel_lvds_connector_funcs = {
.fill_modes = drm_helper_probe_single_connector_modes,
.atomic_get_property = intel_digital_connector_atomic_get_property,
.atomic_set_property = intel_digital_connector_atomic_set_property,
- .late_register = intel_lvds_connector_register,
- .early_unregister = intel_lvds_connector_unregister,
+ .late_register = intel_connector_register,
+ .early_unregister = intel_connector_unregister,
.destroy = intel_lvds_destroy,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
.atomic_duplicate_state = intel_digital_connector_duplicate_state,
@@ -1091,8 +961,6 @@ void intel_lvds_init(struct drm_i915_private *dev_priv)
* 2) check for VBT data
* 3) check to see if LVDS is already on
* if none of the above, no panel
- * 4) make sure lid is open
- * if closed, act like it's not there for now
*/
/*
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 672b0be41d44..a306493e2e97 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1964,6 +1964,9 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI) },
+ { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_ANSI) },
+ { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
#endif
diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c
index c2a2ce8ee541..ef699477d94a 100644
--- a/drivers/hwtracing/intel_th/pci.c
+++ b/drivers/hwtracing/intel_th/pci.c
@@ -168,6 +168,11 @@ static const struct pci_device_id intel_th_pci_id_table[] = {
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x18e1),
.driver_data = (kernel_ulong_t)&intel_th_2x,
},
+ {
+ /* Ice Lake PCH */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x34a6),
+ .driver_data = (kernel_ulong_t)&intel_th_2x,
+ },
{ 0 },
};
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 15d764afec3b..7f044df1ea07 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -32,6 +32,7 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
+#include <linux/reset.h>
#include <linux/slab.h>
/* register offsets */
@@ -111,8 +112,9 @@
#define ID_ARBLOST (1 << 3)
#define ID_NACK (1 << 4)
/* persistent flags */
+#define ID_P_NO_RXDMA (1 << 30) /* HW forbids RXDMA sometimes */
#define ID_P_PM_BLOCKED (1 << 31)
-#define ID_P_MASK ID_P_PM_BLOCKED
+#define ID_P_MASK (ID_P_PM_BLOCKED | ID_P_NO_RXDMA)
enum rcar_i2c_type {
I2C_RCAR_GEN1,
@@ -140,6 +142,8 @@ struct rcar_i2c_priv {
struct dma_chan *dma_rx;
struct scatterlist sg;
enum dma_data_direction dma_direction;
+
+ struct reset_control *rstc;
};
#define rcar_i2c_priv_to_dev(p) ((p)->adap.dev.parent)
@@ -321,6 +325,11 @@ static void rcar_i2c_dma_unmap(struct rcar_i2c_priv *priv)
dma_unmap_single(chan->device->dev, sg_dma_address(&priv->sg),
sg_dma_len(&priv->sg), priv->dma_direction);
+ /* Gen3 can only do one RXDMA per transfer and we just completed it */
+ if (priv->devtype == I2C_RCAR_GEN3 &&
+ priv->dma_direction == DMA_FROM_DEVICE)
+ priv->flags |= ID_P_NO_RXDMA;
+
priv->dma_direction = DMA_NONE;
}
@@ -358,8 +367,9 @@ static void rcar_i2c_dma(struct rcar_i2c_priv *priv)
unsigned char *buf;
int len;
- /* Do not use DMA if it's not available or for messages < 8 bytes */
- if (IS_ERR(chan) || msg->len < 8)
+ /* Do various checks to see if DMA is feasible at all */
+ if (IS_ERR(chan) || msg->len < 8 ||
+ (read && priv->flags & ID_P_NO_RXDMA))
return;
if (read) {
@@ -688,6 +698,25 @@ static void rcar_i2c_release_dma(struct rcar_i2c_priv *priv)
}
}
+/* I2C is a special case, we need to poll the status of a reset */
+static int rcar_i2c_do_reset(struct rcar_i2c_priv *priv)
+{
+ int i, ret;
+
+ ret = reset_control_reset(priv->rstc);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < LOOP_TIMEOUT; i++) {
+ ret = reset_control_status(priv->rstc);
+ if (ret == 0)
+ return 0;
+ udelay(1);
+ }
+
+ return -ETIMEDOUT;
+}
+
static int rcar_i2c_master_xfer(struct i2c_adapter *adap,
struct i2c_msg *msgs,
int num)
@@ -699,6 +728,16 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap,
pm_runtime_get_sync(dev);
+ /* Gen3 needs a reset before allowing RXDMA once */
+ if (priv->devtype == I2C_RCAR_GEN3) {
+ priv->flags |= ID_P_NO_RXDMA;
+ if (!IS_ERR(priv->rstc)) {
+ ret = rcar_i2c_do_reset(priv);
+ if (ret == 0)
+ priv->flags &= ~ID_P_NO_RXDMA;
+ }
+ }
+
rcar_i2c_init(priv);
ret = rcar_i2c_bus_barrier(priv);
@@ -868,6 +907,15 @@ static int rcar_i2c_probe(struct platform_device *pdev)
if (ret < 0)
goto out_pm_put;
+ if (priv->devtype == I2C_RCAR_GEN3) {
+ priv->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
+ if (!IS_ERR(priv->rstc)) {
+ ret = reset_control_status(priv->rstc);
+ if (ret < 0)
+ priv->rstc = ERR_PTR(-ENOTSUPP);
+ }
+ }
+
/* Stay always active when multi-master to keep arbitration working */
if (of_property_read_bool(dev->of_node, "multi-master"))
priv->flags |= ID_P_PM_BLOCKED;
diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c
index 33cf1734c4e5..f9faacce9250 100644
--- a/drivers/infiniband/hw/hfi1/chip.c
+++ b/drivers/infiniband/hw/hfi1/chip.c
@@ -6722,6 +6722,7 @@ void start_freeze_handling(struct hfi1_pportdata *ppd, int flags)
struct hfi1_devdata *dd = ppd->dd;
struct send_context *sc;
int i;
+ int sc_flags;
if (flags & FREEZE_SELF)
write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_FREEZE_SMASK);
@@ -6732,11 +6733,13 @@ void start_freeze_handling(struct hfi1_pportdata *ppd, int flags)
/* notify all SDMA engines that they are going into a freeze */
sdma_freeze_notify(dd, !!(flags & FREEZE_LINK_DOWN));
+ sc_flags = SCF_FROZEN | SCF_HALTED | (flags & FREEZE_LINK_DOWN ?
+ SCF_LINK_DOWN : 0);
/* do halt pre-handling on all enabled send contexts */
for (i = 0; i < dd->num_send_contexts; i++) {
sc = dd->send_contexts[i].sc;
if (sc && (sc->flags & SCF_ENABLED))
- sc_stop(sc, SCF_FROZEN | SCF_HALTED);
+ sc_stop(sc, sc_flags);
}
/* Send context are frozen. Notify user space */
@@ -10646,6 +10649,8 @@ int set_link_state(struct hfi1_pportdata *ppd, u32 state)
add_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK);
handle_linkup_change(dd, 1);
+ pio_kernel_linkup(dd);
+
ppd->host_link_state = HLS_UP_INIT;
break;
case HLS_UP_ARMED:
diff --git a/drivers/infiniband/hw/hfi1/pio.c b/drivers/infiniband/hw/hfi1/pio.c
index 19a8e6052820..07bf282fd8aa 100644
--- a/drivers/infiniband/hw/hfi1/pio.c
+++ b/drivers/infiniband/hw/hfi1/pio.c
@@ -942,20 +942,18 @@ void sc_free(struct send_context *sc)
void sc_disable(struct send_context *sc)
{
u64 reg;
- unsigned long flags;
struct pio_buf *pbuf;
if (!sc)
return;
/* do all steps, even if already disabled */
- spin_lock_irqsave(&sc->alloc_lock, flags);
+ spin_lock_irq(&sc->alloc_lock);
reg = read_kctxt_csr(sc->dd, sc->hw_context, SC(CTRL));
reg &= ~SC(CTRL_CTXT_ENABLE_SMASK);
sc->flags &= ~SCF_ENABLED;
sc_wait_for_packet_egress(sc, 1);
write_kctxt_csr(sc->dd, sc->hw_context, SC(CTRL), reg);
- spin_unlock_irqrestore(&sc->alloc_lock, flags);
/*
* Flush any waiters. Once the context is disabled,
@@ -965,7 +963,7 @@ void sc_disable(struct send_context *sc)
* proceed with the flush.
*/
udelay(1);
- spin_lock_irqsave(&sc->release_lock, flags);
+ spin_lock(&sc->release_lock);
if (sc->sr) { /* this context has a shadow ring */
while (sc->sr_tail != sc->sr_head) {
pbuf = &sc->sr[sc->sr_tail].pbuf;
@@ -976,7 +974,8 @@ void sc_disable(struct send_context *sc)
sc->sr_tail = 0;
}
}
- spin_unlock_irqrestore(&sc->release_lock, flags);
+ spin_unlock(&sc->release_lock);
+ spin_unlock_irq(&sc->alloc_lock);
}
/* return SendEgressCtxtStatus.PacketOccupancy */
@@ -1199,11 +1198,39 @@ void pio_kernel_unfreeze(struct hfi1_devdata *dd)
sc = dd->send_contexts[i].sc;
if (!sc || !(sc->flags & SCF_FROZEN) || sc->type == SC_USER)
continue;
+ if (sc->flags & SCF_LINK_DOWN)
+ continue;
sc_enable(sc); /* will clear the sc frozen flag */
}
}
+/**
+ * pio_kernel_linkup() - Re-enable send contexts after linkup event
+ * @dd: valid devive data
+ *
+ * When the link goes down, the freeze path is taken. However, a link down
+ * event is different from a freeze because if the send context is re-enabled
+ * whowever is sending data will start sending data again, which will hang
+ * any QP that is sending data.
+ *
+ * The freeze path now looks at the type of event that occurs and takes this
+ * path for link down event.
+ */
+void pio_kernel_linkup(struct hfi1_devdata *dd)
+{
+ struct send_context *sc;
+ int i;
+
+ for (i = 0; i < dd->num_send_contexts; i++) {
+ sc = dd->send_contexts[i].sc;
+ if (!sc || !(sc->flags & SCF_LINK_DOWN) || sc->type == SC_USER)
+ continue;
+
+ sc_enable(sc); /* will clear the sc link down flag */
+ }
+}
+
/*
* Wait for the SendPioInitCtxt.PioInitInProgress bit to clear.
* Returns:
@@ -1403,11 +1430,10 @@ void sc_stop(struct send_context *sc, int flag)
{
unsigned long flags;
- /* mark the context */
- sc->flags |= flag;
-
/* stop buffer allocations */
spin_lock_irqsave(&sc->alloc_lock, flags);
+ /* mark the context */
+ sc->flags |= flag;
sc->flags &= ~SCF_ENABLED;
spin_unlock_irqrestore(&sc->alloc_lock, flags);
wake_up(&sc->halt_wait);
diff --git a/drivers/infiniband/hw/hfi1/pio.h b/drivers/infiniband/hw/hfi1/pio.h
index 99ca5edb0b43..c7c4e6e5d317 100644
--- a/drivers/infiniband/hw/hfi1/pio.h
+++ b/drivers/infiniband/hw/hfi1/pio.h
@@ -145,6 +145,7 @@ struct send_context {
#define SCF_IN_FREE 0x02
#define SCF_HALTED 0x04
#define SCF_FROZEN 0x08
+#define SCF_LINK_DOWN 0x10
struct send_context_info {
struct send_context *sc; /* allocated working context */
@@ -312,6 +313,7 @@ void set_pio_integrity(struct send_context *sc);
void pio_reset_all(struct hfi1_devdata *dd);
void pio_freeze(struct hfi1_devdata *dd);
void pio_kernel_unfreeze(struct hfi1_devdata *dd);
+void pio_kernel_linkup(struct hfi1_devdata *dd);
/* global PIO send control operations */
#define PSC_GLOBAL_ENABLE 0
diff --git a/drivers/input/keyboard/atakbd.c b/drivers/input/keyboard/atakbd.c
index f1235831283d..fdeda0b0fbd6 100644
--- a/drivers/input/keyboard/atakbd.c
+++ b/drivers/input/keyboard/atakbd.c
@@ -79,8 +79,7 @@ MODULE_LICENSE("GPL");
*/
-static unsigned char atakbd_keycode[0x72] = { /* American layout */
- [0] = KEY_GRAVE,
+static unsigned char atakbd_keycode[0x73] = { /* American layout */
[1] = KEY_ESC,
[2] = KEY_1,
[3] = KEY_2,
@@ -121,9 +120,9 @@ static unsigned char atakbd_keycode[0x72] = { /* American layout */
[38] = KEY_L,
[39] = KEY_SEMICOLON,
[40] = KEY_APOSTROPHE,
- [41] = KEY_BACKSLASH, /* FIXME, '#' */
+ [41] = KEY_GRAVE,
[42] = KEY_LEFTSHIFT,
- [43] = KEY_GRAVE, /* FIXME: '~' */
+ [43] = KEY_BACKSLASH,
[44] = KEY_Z,
[45] = KEY_X,
[46] = KEY_C,
@@ -149,45 +148,34 @@ static unsigned char atakbd_keycode[0x72] = { /* American layout */
[66] = KEY_F8,
[67] = KEY_F9,
[68] = KEY_F10,
- [69] = KEY_ESC,
- [70] = KEY_DELETE,
- [71] = KEY_KP7,
- [72] = KEY_KP8,
- [73] = KEY_KP9,
+ [71] = KEY_HOME,
+ [72] = KEY_UP,
[74] = KEY_KPMINUS,
- [75] = KEY_KP4,
- [76] = KEY_KP5,
- [77] = KEY_KP6,
+ [75] = KEY_LEFT,
+ [77] = KEY_RIGHT,
[78] = KEY_KPPLUS,
- [79] = KEY_KP1,
- [80] = KEY_KP2,
- [81] = KEY_KP3,
- [82] = KEY_KP0,
- [83] = KEY_KPDOT,
- [90] = KEY_KPLEFTPAREN,
- [91] = KEY_KPRIGHTPAREN,
- [92] = KEY_KPASTERISK, /* FIXME */
- [93] = KEY_KPASTERISK,
- [94] = KEY_KPPLUS,
- [95] = KEY_HELP,
+ [80] = KEY_DOWN,
+ [82] = KEY_INSERT,
+ [83] = KEY_DELETE,
[96] = KEY_102ND,
- [97] = KEY_KPASTERISK, /* FIXME */
- [98] = KEY_KPSLASH,
+ [97] = KEY_UNDO,
+ [98] = KEY_HELP,
[99] = KEY_KPLEFTPAREN,
[100] = KEY_KPRIGHTPAREN,
[101] = KEY_KPSLASH,
[102] = KEY_KPASTERISK,
- [103] = KEY_UP,
- [104] = KEY_KPASTERISK, /* FIXME */
- [105] = KEY_LEFT,
- [106] = KEY_RIGHT,
- [107] = KEY_KPASTERISK, /* FIXME */
- [108] = KEY_DOWN,
- [109] = KEY_KPASTERISK, /* FIXME */
- [110] = KEY_KPASTERISK, /* FIXME */
- [111] = KEY_KPASTERISK, /* FIXME */
- [112] = KEY_KPASTERISK, /* FIXME */
- [113] = KEY_KPASTERISK /* FIXME */
+ [103] = KEY_KP7,
+ [104] = KEY_KP8,
+ [105] = KEY_KP9,
+ [106] = KEY_KP4,
+ [107] = KEY_KP5,
+ [108] = KEY_KP6,
+ [109] = KEY_KP1,
+ [110] = KEY_KP2,
+ [111] = KEY_KP3,
+ [112] = KEY_KP0,
+ [113] = KEY_KPDOT,
+ [114] = KEY_KPENTER,
};
static struct input_dev *atakbd_dev;
@@ -195,21 +183,15 @@ static struct input_dev *atakbd_dev;
static void atakbd_interrupt(unsigned char scancode, char down)
{
- if (scancode < 0x72) { /* scancodes < 0xf2 are keys */
+ if (scancode < 0x73) { /* scancodes < 0xf3 are keys */
// report raw events here?
scancode = atakbd_keycode[scancode];
- if (scancode == KEY_CAPSLOCK) { /* CapsLock is a toggle switch key on Amiga */
- input_report_key(atakbd_dev, scancode, 1);
- input_report_key(atakbd_dev, scancode, 0);
- input_sync(atakbd_dev);
- } else {
- input_report_key(atakbd_dev, scancode, down);
- input_sync(atakbd_dev);
- }
- } else /* scancodes >= 0xf2 are mouse data, most likely */
+ input_report_key(atakbd_dev, scancode, down);
+ input_sync(atakbd_dev);
+ } else /* scancodes >= 0xf3 are mouse data, most likely */
printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode);
return;
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 9137030423cd..efa6cd2500b9 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -253,7 +253,13 @@ static u16 get_alias(struct device *dev)
/* The callers make sure that get_device_id() does not fail here */
devid = get_device_id(dev);
+
+ /* For ACPI HID devices, we simply return the devid as such */
+ if (!dev_is_pci(dev))
+ return devid;
+
ivrs_alias = amd_iommu_alias_table[devid];
+
pci_for_each_dma_alias(pdev, __last_alias, &pci_alias);
if (ivrs_alias == pci_alias)
diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c
index 666d319d3d1a..1f6c1eefe389 100644
--- a/drivers/media/usb/dvb-usb-v2/af9035.c
+++ b/drivers/media/usb/dvb-usb-v2/af9035.c
@@ -402,8 +402,10 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
if (msg[0].addr == state->af9033_i2c_addr[1])
reg |= 0x100000;
- ret = af9035_wr_regs(d, reg, &msg[0].buf[3],
- msg[0].len - 3);
+ ret = (msg[0].len >= 3) ? af9035_wr_regs(d, reg,
+ &msg[0].buf[3],
+ msg[0].len - 3)
+ : -EOPNOTSUPP;
} else {
/* I2C write */
u8 buf[MAX_XFER_SIZE];
diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
index 7feff2450ed6..d1da8f05ef85 100644
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -2671,12 +2671,17 @@ static int emac_init_phy(struct emac_instance *dev)
if (of_phy_is_fixed_link(np)) {
int res = emac_dt_mdio_probe(dev);
- if (!res) {
- res = of_phy_register_fixed_link(np);
- if (res)
- mdiobus_unregister(dev->mii_bus);
+ if (res)
+ return res;
+
+ res = of_phy_register_fixed_link(np);
+ dev->phy_dev = of_phy_find_device(np);
+ if (res || !dev->phy_dev) {
+ mdiobus_unregister(dev->mii_bus);
+ return res ? res : -EINVAL;
}
- return res;
+ emac_adjust_link(dev->ndev);
+ put_device(&dev->phy_dev->mdio.dev);
}
return 0;
}
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 6f57c052053e..050dc213e8db 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -240,7 +240,8 @@ static void mlx4_set_eq_affinity_hint(struct mlx4_priv *priv, int vec)
struct mlx4_dev *dev = &priv->dev;
struct mlx4_eq *eq = &priv->eq_table.eq[vec];
- if (!eq->affinity_mask || cpumask_empty(eq->affinity_mask))
+ if (!cpumask_available(eq->affinity_mask) ||
+ cpumask_empty(eq->affinity_mask))
return;
hint_err = irq_set_affinity_hint(eq->irq, eq->affinity_mask);
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
index 96a27b00c90e..897bd33c2c50 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -431,6 +431,7 @@ enum EIS_BIT {
EIS_CULF1 = 0x00000080,
EIS_TFFF = 0x00000100,
EIS_QFS = 0x00010000,
+ EIS_RESERVED = (GENMASK(31, 17) | GENMASK(15, 11)),
};
/* RIC0 */
@@ -475,6 +476,7 @@ enum RIS0_BIT {
RIS0_FRF15 = 0x00008000,
RIS0_FRF16 = 0x00010000,
RIS0_FRF17 = 0x00020000,
+ RIS0_RESERVED = GENMASK(31, 18),
};
/* RIC1 */
@@ -531,6 +533,7 @@ enum RIS2_BIT {
RIS2_QFF16 = 0x00010000,
RIS2_QFF17 = 0x00020000,
RIS2_RFFF = 0x80000000,
+ RIS2_RESERVED = GENMASK(30, 18),
};
/* TIC */
@@ -547,6 +550,7 @@ enum TIS_BIT {
TIS_FTF1 = 0x00000002, /* Undocumented? */
TIS_TFUF = 0x00000100,
TIS_TFWF = 0x00000200,
+ TIS_RESERVED = (GENMASK(31, 20) | GENMASK(15, 12) | GENMASK(7, 4))
};
/* ISS */
@@ -620,6 +624,7 @@ enum GIC_BIT {
enum GIS_BIT {
GIS_PTCF = 0x00000001, /* Undocumented? */
GIS_PTMF = 0x00000004,
+ GIS_RESERVED = GENMASK(15, 10),
};
/* GIE (R-Car Gen3 only) */
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index e87a779bfcfe..ff3a293ffe36 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -721,10 +721,11 @@ static void ravb_error_interrupt(struct net_device *ndev)
u32 eis, ris2;
eis = ravb_read(ndev, EIS);
- ravb_write(ndev, ~EIS_QFS, EIS);
+ ravb_write(ndev, ~(EIS_QFS | EIS_RESERVED), EIS);
if (eis & EIS_QFS) {
ris2 = ravb_read(ndev, RIS2);
- ravb_write(ndev, ~(RIS2_QFF0 | RIS2_RFFF), RIS2);
+ ravb_write(ndev, ~(RIS2_QFF0 | RIS2_RFFF | RIS2_RESERVED),
+ RIS2);
/* Receive Descriptor Empty int */
if (ris2 & RIS2_QFF0)
@@ -777,7 +778,7 @@ static bool ravb_timestamp_interrupt(struct net_device *ndev)
u32 tis = ravb_read(ndev, TIS);
if (tis & TIS_TFUF) {
- ravb_write(ndev, ~TIS_TFUF, TIS);
+ ravb_write(ndev, ~(TIS_TFUF | TIS_RESERVED), TIS);
ravb_get_tx_tstamp(ndev);
return true;
}
@@ -912,7 +913,7 @@ static int ravb_poll(struct napi_struct *napi, int budget)
/* Processing RX Descriptor Ring */
if (ris0 & mask) {
/* Clear RX interrupt */
- ravb_write(ndev, ~mask, RIS0);
+ ravb_write(ndev, ~(mask | RIS0_RESERVED), RIS0);
if (ravb_rx(ndev, "a, q))
goto out;
}
@@ -920,7 +921,7 @@ static int ravb_poll(struct napi_struct *napi, int budget)
if (tis & mask) {
spin_lock_irqsave(&priv->lock, flags);
/* Clear TX interrupt */
- ravb_write(ndev, ~mask, TIS);
+ ravb_write(ndev, ~(mask | TIS_RESERVED), TIS);
ravb_tx_free(ndev, q, true);
netif_wake_subqueue(ndev, q);
mmiowb();
diff --git a/drivers/net/ethernet/renesas/ravb_ptp.c b/drivers/net/ethernet/renesas/ravb_ptp.c
index eede70ec37f8..9e3222fd69f9 100644
--- a/drivers/net/ethernet/renesas/ravb_ptp.c
+++ b/drivers/net/ethernet/renesas/ravb_ptp.c
@@ -319,7 +319,7 @@ void ravb_ptp_interrupt(struct net_device *ndev)
}
}
- ravb_write(ndev, ~gis, GIS);
+ ravb_write(ndev, ~(gis | GIS_RESERVED), GIS);
}
void ravb_ptp_init(struct net_device *ndev, struct platform_device *pdev)
diff --git a/drivers/pci/dwc/pcie-designware.c b/drivers/pci/dwc/pcie-designware.c
index 88abdddee2ad..a06ad2c65174 100644
--- a/drivers/pci/dwc/pcie-designware.c
+++ b/drivers/pci/dwc/pcie-designware.c
@@ -138,7 +138,7 @@ static void dw_pcie_prog_outbound_atu_unroll(struct dw_pcie *pci, int index,
if (val & PCIE_ATU_ENABLE)
return;
- usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX);
+ mdelay(LINK_WAIT_IATU);
}
dev_err(pci->dev, "outbound iATU is not being enabled\n");
}
@@ -181,7 +181,7 @@ void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index, int type,
if (val & PCIE_ATU_ENABLE)
return;
- usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX);
+ mdelay(LINK_WAIT_IATU);
}
dev_err(pci->dev, "outbound iATU is not being enabled\n");
}
@@ -239,7 +239,7 @@ static int dw_pcie_prog_inbound_atu_unroll(struct dw_pcie *pci, int index,
if (val & PCIE_ATU_ENABLE)
return 0;
- usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX);
+ mdelay(LINK_WAIT_IATU);
}
dev_err(pci->dev, "inbound iATU is not being enabled\n");
@@ -285,7 +285,7 @@ int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, int index, int bar,
if (val & PCIE_ATU_ENABLE)
return 0;
- usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX);
+ mdelay(LINK_WAIT_IATU);
}
dev_err(pci->dev, "inbound iATU is not being enabled\n");
diff --git a/drivers/pci/dwc/pcie-designware.h b/drivers/pci/dwc/pcie-designware.h
index cb493bcae8b4..3551dd607b90 100644
--- a/drivers/pci/dwc/pcie-designware.h
+++ b/drivers/pci/dwc/pcie-designware.h
@@ -28,8 +28,7 @@
/* Parameters for the waiting for iATU enabled routine */
#define LINK_WAIT_MAX_IATU_RETRIES 5
-#define LINK_WAIT_IATU_MIN 9000
-#define LINK_WAIT_IATU_MAX 10000
+#define LINK_WAIT_IATU 9
/* Synopsys-specific PCIe configuration registers */
#define PCIE_PORT_LINK_CONTROL 0x710
diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
index 2799a6b08f73..25d2741cdf96 100644
--- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
+++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
@@ -3465,11 +3465,10 @@ static int ibmvscsis_probe(struct vio_dev *vdev,
vscsi->dds.window[LOCAL].liobn,
vscsi->dds.window[REMOTE].liobn);
- strcpy(vscsi->eye, "VSCSI ");
- strncat(vscsi->eye, vdev->name, MAX_EYE);
+ snprintf(vscsi->eye, sizeof(vscsi->eye), "VSCSI %s", vdev->name);
vscsi->dds.unit_id = vdev->unit_address;
- strncpy(vscsi->dds.partition_name, partition_name,
+ strscpy(vscsi->dds.partition_name, partition_name,
sizeof(vscsi->dds.partition_name));
vscsi->dds.partition_num = partition_number;
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index f838bd73befa..35d54ee1c5c7 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -3308,6 +3308,65 @@ static void ipr_release_dump(struct kref *kref)
LEAVE;
}
+static void ipr_add_remove_thread(struct work_struct *work)
+{
+ unsigned long lock_flags;
+ struct ipr_resource_entry *res;
+ struct scsi_device *sdev;
+ struct ipr_ioa_cfg *ioa_cfg =
+ container_of(work, struct ipr_ioa_cfg, scsi_add_work_q);
+ u8 bus, target, lun;
+ int did_work;
+
+ ENTER;
+ spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+
+restart:
+ do {
+ did_work = 0;
+ if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
+ spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+ return;
+ }
+
+ list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
+ if (res->del_from_ml && res->sdev) {
+ did_work = 1;
+ sdev = res->sdev;
+ if (!scsi_device_get(sdev)) {
+ if (!res->add_to_ml)
+ list_move_tail(&res->queue, &ioa_cfg->free_res_q);
+ else
+ res->del_from_ml = 0;
+ spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+ scsi_remove_device(sdev);
+ scsi_device_put(sdev);
+ spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+ }
+ break;
+ }
+ }
+ } while (did_work);
+
+ list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
+ if (res->add_to_ml) {
+ bus = res->bus;
+ target = res->target;
+ lun = res->lun;
+ res->add_to_ml = 0;
+ spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+ scsi_add_device(ioa_cfg->host, bus, target, lun);
+ spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+ goto restart;
+ }
+ }
+
+ ioa_cfg->scan_done = 1;
+ spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+ kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
+ LEAVE;
+}
+
/**
* ipr_worker_thread - Worker thread
* @work: ioa config struct
@@ -3322,13 +3381,9 @@ static void ipr_release_dump(struct kref *kref)
static void ipr_worker_thread(struct work_struct *work)
{
unsigned long lock_flags;
- struct ipr_resource_entry *res;
- struct scsi_device *sdev;
struct ipr_dump *dump;
struct ipr_ioa_cfg *ioa_cfg =
container_of(work, struct ipr_ioa_cfg, work_q);
- u8 bus, target, lun;
- int did_work;
ENTER;
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
@@ -3366,49 +3421,9 @@ static void ipr_worker_thread(struct work_struct *work)
return;
}
-restart:
- do {
- did_work = 0;
- if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
- spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
- return;
- }
+ schedule_work(&ioa_cfg->scsi_add_work_q);
- list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
- if (res->del_from_ml && res->sdev) {
- did_work = 1;
- sdev = res->sdev;
- if (!scsi_device_get(sdev)) {
- if (!res->add_to_ml)
- list_move_tail(&res->queue, &ioa_cfg->free_res_q);
- else
- res->del_from_ml = 0;
- spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
- scsi_remove_device(sdev);
- scsi_device_put(sdev);
- spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
- }
- break;
- }
- }
- } while (did_work);
-
- list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
- if (res->add_to_ml) {
- bus = res->bus;
- target = res->target;
- lun = res->lun;
- res->add_to_ml = 0;
- spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
- scsi_add_device(ioa_cfg->host, bus, target, lun);
- spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
- goto restart;
- }
- }
-
- ioa_cfg->scan_done = 1;
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
- kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
LEAVE;
}
@@ -9937,6 +9952,7 @@ static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
INIT_LIST_HEAD(&ioa_cfg->free_res_q);
INIT_LIST_HEAD(&ioa_cfg->used_res_q);
INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
+ INIT_WORK(&ioa_cfg->scsi_add_work_q, ipr_add_remove_thread);
init_waitqueue_head(&ioa_cfg->reset_wait_q);
init_waitqueue_head(&ioa_cfg->msi_wait_q);
init_waitqueue_head(&ioa_cfg->eeh_wait_q);
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index c7f0e9e3cd7d..085e6c90f9e6 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -1568,6 +1568,7 @@ struct ipr_ioa_cfg {
u8 saved_mode_page_len;
struct work_struct work_q;
+ struct work_struct scsi_add_work_q;
struct workqueue_struct *reset_work_q;
wait_queue_head_t reset_wait_q;
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 4a532318b211..6d3091ff9b92 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1285,7 +1285,8 @@ static int sd_init_command(struct scsi_cmnd *cmd)
case REQ_OP_ZONE_RESET:
return sd_zbc_setup_reset_cmnd(cmd);
default:
- BUG();
+ WARN_ON_ONCE(1);
+ return BLKPREP_KILL;
}
}
diff --git a/drivers/staging/ccree/ssi_buffer_mgr.c b/drivers/staging/ccree/ssi_buffer_mgr.c
index 63936091d524..4ba6e9c422c4 100644
--- a/drivers/staging/ccree/ssi_buffer_mgr.c
+++ b/drivers/staging/ccree/ssi_buffer_mgr.c
@@ -492,7 +492,8 @@ void ssi_buffer_mgr_unmap_blkcipher_request(
DMA_TO_DEVICE);
}
/* Release pool */
- if (req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI) {
+ if (req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI &&
+ req_ctx->mlli_params.mlli_virt_addr) {
dma_pool_free(req_ctx->mlli_params.curr_pool,
req_ctx->mlli_params.mlli_virt_addr,
req_ctx->mlli_params.mlli_dma_addr);
diff --git a/fs/namespace.c b/fs/namespace.c
index 3ee3ee5819bc..9dc146e7b5e0 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -446,10 +446,10 @@ int mnt_want_write_file_path(struct file *file)
{
int ret;
- sb_start_write(file_inode(file)->i_sb);
+ sb_start_write(file->f_path.mnt->mnt_sb);
ret = __mnt_want_write_file(file);
if (ret)
- sb_end_write(file_inode(file)->i_sb);
+ sb_end_write(file->f_path.mnt->mnt_sb);
return ret;
}
@@ -540,8 +540,7 @@ void __mnt_drop_write_file(struct file *file)
void mnt_drop_write_file_path(struct file *file)
{
- __mnt_drop_write_file(file);
- sb_end_write(file_inode(file)->i_sb);
+ mnt_drop_write(file->f_path.mnt);
}
void mnt_drop_write_file(struct file *file)
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 87067d23a48b..bfa38da4c261 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -42,7 +42,7 @@ extern int mincore_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
unsigned char *vec);
extern bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
unsigned long new_addr, unsigned long old_end,
- pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush);
+ pmd_t *old_pmd, pmd_t *new_pmd);
extern int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
unsigned long addr, pgprot_t newprot,
int prot_numa);
diff --git a/kernel/memremap.c b/kernel/memremap.c
index 2b136d4988f7..790ddf3bce19 100644
--- a/kernel/memremap.c
+++ b/kernel/memremap.c
@@ -355,10 +355,27 @@ void *devm_memremap_pages(struct device *dev, struct resource *res,
struct dev_pagemap *pgmap;
struct page_map *page_map;
int error, nid, is_ram, i = 0;
+ struct dev_pagemap *conflict_pgmap;
align_start = res->start & ~(SECTION_SIZE - 1);
align_size = ALIGN(res->start + resource_size(res), SECTION_SIZE)
- align_start;
+ align_end = align_start + align_size - 1;
+
+ conflict_pgmap = get_dev_pagemap(PHYS_PFN(align_start), NULL);
+ if (conflict_pgmap) {
+ dev_WARN(dev, "Conflicting mapping in same section\n");
+ put_dev_pagemap(conflict_pgmap);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ conflict_pgmap = get_dev_pagemap(PHYS_PFN(align_end), NULL);
+ if (conflict_pgmap) {
+ dev_WARN(dev, "Conflicting mapping in same section\n");
+ put_dev_pagemap(conflict_pgmap);
+ return ERR_PTR(-ENOMEM);
+ }
+
is_ram = region_intersects(align_start, align_size,
IORESOURCE_SYSTEM_RAM, IORES_DESC_NONE);
@@ -396,7 +413,6 @@ void *devm_memremap_pages(struct device *dev, struct resource *res,
mutex_lock(&pgmap_lock);
error = 0;
- align_end = align_start + align_size - 1;
foreach_order_pgoff(res, order, pgoff) {
struct dev_pagemap *dup;
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 39c1fedcfdb4..adacfe66cf3d 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1765,7 +1765,7 @@ static pmd_t move_soft_dirty_pmd(pmd_t pmd)
bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
unsigned long new_addr, unsigned long old_end,
- pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
+ pmd_t *old_pmd, pmd_t *new_pmd)
{
spinlock_t *old_ptl, *new_ptl;
pmd_t pmd;
@@ -1796,7 +1796,7 @@ bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
if (new_ptl != old_ptl)
spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
pmd = pmdp_huge_get_and_clear(mm, old_addr, old_pmd);
- if (pmd_present(pmd) && pmd_dirty(pmd))
+ if (pmd_present(pmd))
force_flush = true;
VM_BUG_ON(!pmd_none(*new_pmd));
@@ -1807,12 +1807,10 @@ bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
}
pmd = move_soft_dirty_pmd(pmd);
set_pmd_at(mm, new_addr, new_pmd, pmd);
- if (new_ptl != old_ptl)
- spin_unlock(new_ptl);
if (force_flush)
flush_tlb_range(vma, old_addr, old_addr + PMD_SIZE);
- else
- *need_flush = true;
+ if (new_ptl != old_ptl)
+ spin_unlock(new_ptl);
spin_unlock(old_ptl);
return true;
}
diff --git a/mm/mremap.c b/mm/mremap.c
index 049470aa1e3e..88ceeb4ef817 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -115,7 +115,7 @@ static pte_t move_soft_dirty_pte(pte_t pte)
static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
unsigned long old_addr, unsigned long old_end,
struct vm_area_struct *new_vma, pmd_t *new_pmd,
- unsigned long new_addr, bool need_rmap_locks, bool *need_flush)
+ unsigned long new_addr, bool need_rmap_locks)
{
struct mm_struct *mm = vma->vm_mm;
pte_t *old_pte, *new_pte, pte;
@@ -163,15 +163,17 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
pte = ptep_get_and_clear(mm, old_addr, old_pte);
/*
- * If we are remapping a dirty PTE, make sure
+ * If we are remapping a valid PTE, make sure
* to flush TLB before we drop the PTL for the
- * old PTE or we may race with page_mkclean().
+ * PTE.
*
- * This check has to be done after we removed the
- * old PTE from page tables or another thread may
- * dirty it after the check and before the removal.
+ * NOTE! Both old and new PTL matter: the old one
+ * for racing with page_mkclean(), the new one to
+ * make sure the physical page stays valid until
+ * the TLB entry for the old mapping has been
+ * flushed.
*/
- if (pte_present(pte) && pte_dirty(pte))
+ if (pte_present(pte))
force_flush = true;
pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
pte = move_soft_dirty_pte(pte);
@@ -179,13 +181,11 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
}
arch_leave_lazy_mmu_mode();
+ if (force_flush)
+ flush_tlb_range(vma, old_end - len, old_end);
if (new_ptl != old_ptl)
spin_unlock(new_ptl);
pte_unmap(new_pte - 1);
- if (force_flush)
- flush_tlb_range(vma, old_end - len, old_end);
- else
- *need_flush = true;
pte_unmap_unlock(old_pte - 1, old_ptl);
if (need_rmap_locks)
drop_rmap_locks(vma);
@@ -200,7 +200,6 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
{
unsigned long extent, next, old_end;
pmd_t *old_pmd, *new_pmd;
- bool need_flush = false;
unsigned long mmun_start; /* For mmu_notifiers */
unsigned long mmun_end; /* For mmu_notifiers */
@@ -231,8 +230,7 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
if (need_rmap_locks)
take_rmap_locks(vma);
moved = move_huge_pmd(vma, old_addr, new_addr,
- old_end, old_pmd, new_pmd,
- &need_flush);
+ old_end, old_pmd, new_pmd);
if (need_rmap_locks)
drop_rmap_locks(vma);
if (moved)
@@ -250,10 +248,8 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
if (extent > LATENCY_LIMIT)
extent = LATENCY_LIMIT;
move_ptes(vma, old_pmd, old_addr, old_addr + extent, new_vma,
- new_pmd, new_addr, need_rmap_locks, &need_flush);
+ new_pmd, new_addr, need_rmap_locks);
}
- if (need_flush)
- flush_tlb_range(vma, old_end-len, old_addr);
mmu_notifier_invalidate_range_end(vma->vm_mm, mmun_start, mmun_end);
diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c
index bd1064d98e16..e92dfedccc16 100644
--- a/net/batman-adv/bat_v_elp.c
+++ b/net/batman-adv/bat_v_elp.c
@@ -227,7 +227,7 @@ batadv_v_elp_wifi_neigh_probe(struct batadv_hardif_neigh_node *neigh)
* the packet to be exactly of that size to make the link
* throughput estimation effective.
*/
- skb_put(skb, probe_len - hard_iface->bat_v.elp_skb->len);
+ skb_put_zero(skb, probe_len - hard_iface->bat_v.elp_skb->len);
batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
"Sending unicast (probe) ELP packet on interface %s to %pM\n",
@@ -254,6 +254,7 @@ static void batadv_v_elp_periodic_work(struct work_struct *work)
struct batadv_priv *bat_priv;
struct sk_buff *skb;
u32 elp_interval;
+ bool ret;
bat_v = container_of(work, struct batadv_hard_iface_bat_v, elp_wq.work);
hard_iface = container_of(bat_v, struct batadv_hard_iface, bat_v);
@@ -315,8 +316,11 @@ static void batadv_v_elp_periodic_work(struct work_struct *work)
* may sleep and that is not allowed in an rcu protected
* context. Therefore schedule a task for that.
*/
- queue_work(batadv_event_workqueue,
- &hardif_neigh->bat_v.metric_work);
+ ret = queue_work(batadv_event_workqueue,
+ &hardif_neigh->bat_v.metric_work);
+
+ if (!ret)
+ batadv_hardif_neigh_put(hardif_neigh);
}
rcu_read_unlock();
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index 422ee16b7854..c3c848f64fdd 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -1772,6 +1772,7 @@ batadv_bla_loopdetect_check(struct batadv_priv *bat_priv, struct sk_buff *skb,
{
struct batadv_bla_backbone_gw *backbone_gw;
struct ethhdr *ethhdr;
+ bool ret;
ethhdr = eth_hdr(skb);
@@ -1795,8 +1796,13 @@ batadv_bla_loopdetect_check(struct batadv_priv *bat_priv, struct sk_buff *skb,
if (unlikely(!backbone_gw))
return true;
- queue_work(batadv_event_workqueue, &backbone_gw->report_work);
- /* backbone_gw is unreferenced in the report work function function */
+ ret = queue_work(batadv_event_workqueue, &backbone_gw->report_work);
+
+ /* backbone_gw is unreferenced in the report work function function
+ * if queue_work() call was successful
+ */
+ if (!ret)
+ batadv_backbone_gw_put(backbone_gw);
return true;
}
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index 06276ae9f752..c6a7341f0527 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -31,6 +31,7 @@
#include <linux/kernel.h>
#include <linux/kref.h>
#include <linux/list.h>
+#include <linux/lockdep.h>
#include <linux/netdevice.h>
#include <linux/netlink.h>
#include <linux/rculist.h>
@@ -325,6 +326,9 @@ void batadv_gw_check_election(struct batadv_priv *bat_priv,
* @bat_priv: the bat priv with all the soft interface information
* @orig_node: originator announcing gateway capabilities
* @gateway: announced bandwidth information
+ *
+ * Has to be called with the appropriate locks being acquired
+ * (gw.list_lock).
*/
static void batadv_gw_node_add(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig_node,
@@ -332,6 +336,8 @@ static void batadv_gw_node_add(struct batadv_priv *bat_priv,
{
struct batadv_gw_node *gw_node;
+ lockdep_assert_held(&bat_priv->gw.list_lock);
+
if (gateway->bandwidth_down == 0)
return;
@@ -346,10 +352,8 @@ static void batadv_gw_node_add(struct batadv_priv *bat_priv,
gw_node->bandwidth_down = ntohl(gateway->bandwidth_down);
gw_node->bandwidth_up = ntohl(gateway->bandwidth_up);
- spin_lock_bh(&bat_priv->gw.list_lock);
kref_get(&gw_node->refcount);
hlist_add_head_rcu(&gw_node->list, &bat_priv->gw.gateway_list);
- spin_unlock_bh(&bat_priv->gw.list_lock);
batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
"Found new gateway %pM -> gw bandwidth: %u.%u/%u.%u MBit\n",
@@ -405,11 +409,14 @@ void batadv_gw_node_update(struct batadv_priv *bat_priv,
{
struct batadv_gw_node *gw_node, *curr_gw = NULL;
+ spin_lock_bh(&bat_priv->gw.list_lock);
gw_node = batadv_gw_node_get(bat_priv, orig_node);
if (!gw_node) {
batadv_gw_node_add(bat_priv, orig_node, gateway);
+ spin_unlock_bh(&bat_priv->gw.list_lock);
goto out;
}
+ spin_unlock_bh(&bat_priv->gw.list_lock);
if ((gw_node->bandwidth_down == ntohl(gateway->bandwidth_down)) &&
(gw_node->bandwidth_up == ntohl(gateway->bandwidth_up)))
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index 3604d7899e2c..7a7dcac20566 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -850,16 +850,27 @@ batadv_nc_get_nc_node(struct batadv_priv *bat_priv,
spinlock_t *lock; /* Used to lock list selected by "int in_coding" */
struct list_head *list;
+ /* Select ingoing or outgoing coding node */
+ if (in_coding) {
+ lock = &orig_neigh_node->in_coding_list_lock;
+ list = &orig_neigh_node->in_coding_list;
+ } else {
+ lock = &orig_neigh_node->out_coding_list_lock;
+ list = &orig_neigh_node->out_coding_list;
+ }
+
+ spin_lock_bh(lock);
+
/* Check if nc_node is already added */
nc_node = batadv_nc_find_nc_node(orig_node, orig_neigh_node, in_coding);
/* Node found */
if (nc_node)
- return nc_node;
+ goto unlock;
nc_node = kzalloc(sizeof(*nc_node), GFP_ATOMIC);
if (!nc_node)
- return NULL;
+ goto unlock;
/* Initialize nc_node */
INIT_LIST_HEAD(&nc_node->list);
@@ -868,22 +879,14 @@ batadv_nc_get_nc_node(struct batadv_priv *bat_priv,
kref_get(&orig_neigh_node->refcount);
nc_node->orig_node = orig_neigh_node;
- /* Select ingoing or outgoing coding node */
- if (in_coding) {
- lock = &orig_neigh_node->in_coding_list_lock;
- list = &orig_neigh_node->in_coding_list;
- } else {
- lock = &orig_neigh_node->out_coding_list_lock;
- list = &orig_neigh_node->out_coding_list;
- }
-
batadv_dbg(BATADV_DBG_NC, bat_priv, "Adding nc_node %pM -> %pM\n",
nc_node->addr, nc_node->orig_node->orig);
/* Add nc_node to orig_node */
- spin_lock_bh(lock);
kref_get(&nc_node->refcount);
list_add_tail_rcu(&nc_node->list, list);
+
+unlock:
spin_unlock_bh(lock);
return nc_node;
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index aa2c49fa31ce..8cedb5db1ab3 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -566,15 +566,20 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid)
struct batadv_softif_vlan *vlan;
int err;
+ spin_lock_bh(&bat_priv->softif_vlan_list_lock);
+
vlan = batadv_softif_vlan_get(bat_priv, vid);
if (vlan) {
batadv_softif_vlan_put(vlan);
+ spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
return -EEXIST;
}
vlan = kzalloc(sizeof(*vlan), GFP_ATOMIC);
- if (!vlan)
+ if (!vlan) {
+ spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
return -ENOMEM;
+ }
vlan->bat_priv = bat_priv;
vlan->vid = vid;
@@ -582,17 +587,23 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid)
atomic_set(&vlan->ap_isolation, 0);
+ kref_get(&vlan->refcount);
+ hlist_add_head_rcu(&vlan->list, &bat_priv->softif_vlan_list);
+ spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
+
+ /* batadv_sysfs_add_vlan cannot be in the spinlock section due to the
+ * sleeping behavior of the sysfs functions and the fs_reclaim lock
+ */
err = batadv_sysfs_add_vlan(bat_priv->soft_iface, vlan);
if (err) {
- kfree(vlan);
+ /* ref for the function */
+ batadv_softif_vlan_put(vlan);
+
+ /* ref for the list */
+ batadv_softif_vlan_put(vlan);
return err;
}
- spin_lock_bh(&bat_priv->softif_vlan_list_lock);
- kref_get(&vlan->refcount);
- hlist_add_head_rcu(&vlan->list, &bat_priv->softif_vlan_list);
- spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
-
/* add a new TT local entry. This one will be marked with the NOPURGE
* flag
*/
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index 0ae8b30e4eaa..2ef9b136fc39 100644
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -186,7 +186,8 @@ ssize_t batadv_store_##_name(struct kobject *kobj, \
\
return __batadv_store_uint_attr(buff, count, _min, _max, \
_post_func, attr, \
- &bat_priv->_var, net_dev); \
+ &bat_priv->_var, net_dev, \
+ NULL); \
}
#define BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \
@@ -260,7 +261,9 @@ ssize_t batadv_store_##_name(struct kobject *kobj, \
\
length = __batadv_store_uint_attr(buff, count, _min, _max, \
_post_func, attr, \
- &hard_iface->_var, net_dev); \
+ &hard_iface->_var, \
+ hard_iface->soft_iface, \
+ net_dev); \
\
batadv_hardif_put(hard_iface); \
return length; \
@@ -354,10 +357,12 @@ __batadv_store_bool_attr(char *buff, size_t count,
static int batadv_store_uint_attr(const char *buff, size_t count,
struct net_device *net_dev,
+ struct net_device *slave_dev,
const char *attr_name,
unsigned int min, unsigned int max,
atomic_t *attr)
{
+ char ifname[IFNAMSIZ + 3] = "";
unsigned long uint_val;
int ret;
@@ -383,8 +388,11 @@ static int batadv_store_uint_attr(const char *buff, size_t count,
if (atomic_read(attr) == uint_val)
return count;
- batadv_info(net_dev, "%s: Changing from: %i to: %lu\n",
- attr_name, atomic_read(attr), uint_val);
+ if (slave_dev)
+ snprintf(ifname, sizeof(ifname), "%s: ", slave_dev->name);
+
+ batadv_info(net_dev, "%s: %sChanging from: %i to: %lu\n",
+ attr_name, ifname, atomic_read(attr), uint_val);
atomic_set(attr, uint_val);
return count;
@@ -395,12 +403,13 @@ static ssize_t __batadv_store_uint_attr(const char *buff, size_t count,
void (*post_func)(struct net_device *),
const struct attribute *attr,
atomic_t *attr_store,
- struct net_device *net_dev)
+ struct net_device *net_dev,
+ struct net_device *slave_dev)
{
int ret;
- ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max,
- attr_store);
+ ret = batadv_store_uint_attr(buff, count, net_dev, slave_dev,
+ attr->name, min, max, attr_store);
if (post_func && ret)
post_func(net_dev);
@@ -569,7 +578,7 @@ static ssize_t batadv_store_gw_sel_class(struct kobject *kobj,
return __batadv_store_uint_attr(buff, count, 1, BATADV_TQ_MAX_VALUE,
batadv_post_gw_reselect, attr,
&bat_priv->gw.sel_class,
- bat_priv->soft_iface);
+ bat_priv->soft_iface, NULL);
}
static ssize_t batadv_show_gw_bwidth(struct kobject *kobj,
@@ -1078,8 +1087,9 @@ static ssize_t batadv_store_throughput_override(struct kobject *kobj,
if (old_tp_override == tp_override)
goto out;
- batadv_info(net_dev, "%s: Changing from: %u.%u MBit to: %u.%u MBit\n",
- "throughput_override",
+ batadv_info(hard_iface->soft_iface,
+ "%s: %s: Changing from: %u.%u MBit to: %u.%u MBit\n",
+ "throughput_override", net_dev->name,
old_tp_override / 10, old_tp_override % 10,
tp_override / 10, tp_override % 10);
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 0f4d4eece3e4..9da3455847ff 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1587,6 +1587,8 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
{
struct batadv_tt_orig_list_entry *orig_entry;
+ spin_lock_bh(&tt_global->list_lock);
+
orig_entry = batadv_tt_global_orig_entry_find(tt_global, orig_node);
if (orig_entry) {
/* refresh the ttvn: the current value could be a bogus one that
@@ -1609,11 +1611,9 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
orig_entry->flags = flags;
kref_init(&orig_entry->refcount);
- spin_lock_bh(&tt_global->list_lock);
kref_get(&orig_entry->refcount);
hlist_add_head_rcu(&orig_entry->list,
&tt_global->orig_list);
- spin_unlock_bh(&tt_global->list_lock);
atomic_inc(&tt_global->orig_list_count);
sync_flags:
@@ -1621,6 +1621,8 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
out:
if (orig_entry)
batadv_tt_orig_list_entry_put(orig_entry);
+
+ spin_unlock_bh(&tt_global->list_lock);
}
/**
diff --git a/net/batman-adv/tvlv.c b/net/batman-adv/tvlv.c
index 1d9e267caec9..d6d6d95e48aa 100644
--- a/net/batman-adv/tvlv.c
+++ b/net/batman-adv/tvlv.c
@@ -528,15 +528,20 @@ void batadv_tvlv_handler_register(struct batadv_priv *bat_priv,
{
struct batadv_tvlv_handler *tvlv_handler;
+ spin_lock_bh(&bat_priv->tvlv.handler_list_lock);
+
tvlv_handler = batadv_tvlv_handler_get(bat_priv, type, version);
if (tvlv_handler) {
+ spin_unlock_bh(&bat_priv->tvlv.handler_list_lock);
batadv_tvlv_handler_put(tvlv_handler);
return;
}
tvlv_handler = kzalloc(sizeof(*tvlv_handler), GFP_ATOMIC);
- if (!tvlv_handler)
+ if (!tvlv_handler) {
+ spin_unlock_bh(&bat_priv->tvlv.handler_list_lock);
return;
+ }
tvlv_handler->ogm_handler = optr;
tvlv_handler->unicast_handler = uptr;
@@ -546,7 +551,6 @@ void batadv_tvlv_handler_register(struct batadv_priv *bat_priv,
kref_init(&tvlv_handler->refcount);
INIT_HLIST_NODE(&tvlv_handler->list);
- spin_lock_bh(&bat_priv->tvlv.handler_list_lock);
kref_get(&tvlv_handler->refcount);
hlist_add_head_rcu(&tvlv_handler->list, &bat_priv->tvlv.handler_list);
spin_unlock_bh(&bat_priv->tvlv.handler_list_lock);
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