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Date: Sun, 10 Nov 2019 17:50:39 +0100
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 4.9.200
diff --git a/Makefile b/Makefile
index b7f6639f4e7a..84410351b27c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 9
-SUBLEVEL = 199
+SUBLEVEL = 200
EXTRAVERSION =
NAME = Roaring Lionus
@@ -834,6 +834,18 @@ KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
# enforce correct pointer usage
KBUILD_CFLAGS += $(call cc-option,-Werror=incompatible-pointer-types)
+# Require designated initializers for all marked structures
+KBUILD_CFLAGS += $(call cc-option,-Werror=designated-init)
+
+# change __FILE__ to the relative path from the srctree
+KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
+
+# ensure -fcf-protection is disabled when using retpoline as it is
+# incompatible with -mindirect-branch=thunk-extern
+ifdef CONFIG_RETPOLINE
+KBUILD_CFLAGS += $(call cc-option,-fcf-protection=none)
+endif
+
# use the deterministic mode of AR if available
KBUILD_ARFLAGS := $(call ar-option,D)
diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index edc5ddeb851a..0a7ea1a765f9 100644
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi
@@ -437,7 +437,7 @@
compatible = "fsl,imx7d-gpt", "fsl,imx6sx-gpt";
reg = <0x302d0000 0x10000>;
interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clks IMX7D_CLK_DUMMY>,
+ clocks = <&clks IMX7D_GPT1_ROOT_CLK>,
<&clks IMX7D_GPT1_ROOT_CLK>;
clock-names = "ipg", "per";
};
@@ -446,7 +446,7 @@
compatible = "fsl,imx7d-gpt", "fsl,imx6sx-gpt";
reg = <0x302e0000 0x10000>;
interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clks IMX7D_CLK_DUMMY>,
+ clocks = <&clks IMX7D_GPT2_ROOT_CLK>,
<&clks IMX7D_GPT2_ROOT_CLK>;
clock-names = "ipg", "per";
status = "disabled";
@@ -456,7 +456,7 @@
compatible = "fsl,imx7d-gpt", "fsl,imx6sx-gpt";
reg = <0x302f0000 0x10000>;
interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clks IMX7D_CLK_DUMMY>,
+ clocks = <&clks IMX7D_GPT3_ROOT_CLK>,
<&clks IMX7D_GPT3_ROOT_CLK>;
clock-names = "ipg", "per";
status = "disabled";
@@ -466,7 +466,7 @@
compatible = "fsl,imx7d-gpt", "fsl,imx6sx-gpt";
reg = <0x30300000 0x10000>;
interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clks IMX7D_CLK_DUMMY>,
+ clocks = <&clks IMX7D_GPT4_ROOT_CLK>,
<&clks IMX7D_GPT4_ROOT_CLK>;
clock-names = "ipg", "per";
status = "disabled";
diff --git a/arch/arm/boot/dts/logicpd-torpedo-som.dtsi b/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
index ceb49d15d243..20ee7ca8c653 100644
--- a/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
+++ b/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
@@ -266,3 +266,7 @@
&twl_gpio {
ti,use-leds;
};
+
+&twl_keypad {
+ status = "disabled";
+};
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index ef3add999263..8db549c56914 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -864,8 +864,8 @@ static s8 dm365_queue_priority_mapping[][2] = {
};
static const struct dma_slave_map dm365_edma_map[] = {
- { "davinci-mcbsp.0", "tx", EDMA_FILTER_PARAM(0, 2) },
- { "davinci-mcbsp.0", "rx", EDMA_FILTER_PARAM(0, 3) },
+ { "davinci-mcbsp", "tx", EDMA_FILTER_PARAM(0, 2) },
+ { "davinci-mcbsp", "rx", EDMA_FILTER_PARAM(0, 3) },
{ "davinci_voicecodec", "tx", EDMA_FILTER_PARAM(0, 2) },
{ "davinci_voicecodec", "rx", EDMA_FILTER_PARAM(0, 3) },
{ "spi_davinci.2", "tx", EDMA_FILTER_PARAM(0, 10) },
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index 7d5f4c736a16..cd18eda014c2 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -767,6 +767,36 @@ do_alignment_t32_to_handler(unsigned long *pinstr, struct pt_regs *regs,
return NULL;
}
+static int alignment_get_arm(struct pt_regs *regs, u32 *ip, unsigned long *inst)
+{
+ u32 instr = 0;
+ int fault;
+
+ if (user_mode(regs))
+ fault = get_user(instr, ip);
+ else
+ fault = probe_kernel_address(ip, instr);
+
+ *inst = __mem_to_opcode_arm(instr);
+
+ return fault;
+}
+
+static int alignment_get_thumb(struct pt_regs *regs, u16 *ip, u16 *inst)
+{
+ u16 instr = 0;
+ int fault;
+
+ if (user_mode(regs))
+ fault = get_user(instr, ip);
+ else
+ fault = probe_kernel_address(ip, instr);
+
+ *inst = __mem_to_opcode_thumb16(instr);
+
+ return fault;
+}
+
static int
do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
{
@@ -774,10 +804,10 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
unsigned long instr = 0, instrptr;
int (*handler)(unsigned long addr, unsigned long instr, struct pt_regs *regs);
unsigned int type;
- unsigned int fault;
u16 tinstr = 0;
int isize = 4;
int thumb2_32b = 0;
+ int fault;
if (interrupts_enabled(regs))
local_irq_enable();
@@ -786,15 +816,14 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
if (thumb_mode(regs)) {
u16 *ptr = (u16 *)(instrptr & ~1);
- fault = probe_kernel_address(ptr, tinstr);
- tinstr = __mem_to_opcode_thumb16(tinstr);
+
+ fault = alignment_get_thumb(regs, ptr, &tinstr);
if (!fault) {
if (cpu_architecture() >= CPU_ARCH_ARMv7 &&
IS_T32(tinstr)) {
/* Thumb-2 32-bit */
- u16 tinst2 = 0;
- fault = probe_kernel_address(ptr + 1, tinst2);
- tinst2 = __mem_to_opcode_thumb16(tinst2);
+ u16 tinst2;
+ fault = alignment_get_thumb(regs, ptr + 1, &tinst2);
instr = __opcode_thumb32_compose(tinstr, tinst2);
thumb2_32b = 1;
} else {
@@ -803,8 +832,7 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
}
}
} else {
- fault = probe_kernel_address((void *)instrptr, instr);
- instr = __mem_to_opcode_arm(instr);
+ fault = alignment_get_arm(regs, (void *)instrptr, &instr);
}
if (fault) {
diff --git a/arch/mips/bcm63xx/prom.c b/arch/mips/bcm63xx/prom.c
index 7019e2967009..bbbf8057565b 100644
--- a/arch/mips/bcm63xx/prom.c
+++ b/arch/mips/bcm63xx/prom.c
@@ -84,7 +84,7 @@ void __init prom_init(void)
* Here we will start up CPU1 in the background and ask it to
* reconfigure itself then go back to sleep.
*/
- memcpy((void *)0xa0000200, &bmips_smp_movevec, 0x20);
+ memcpy((void *)0xa0000200, bmips_smp_movevec, 0x20);
__sync();
set_c0_cause(C_SW0);
cpumask_set_cpu(1, &bmips_booted_mask);
diff --git a/arch/mips/include/asm/bmips.h b/arch/mips/include/asm/bmips.h
index a92aee7b977a..23f55af7d6ba 100644
--- a/arch/mips/include/asm/bmips.h
+++ b/arch/mips/include/asm/bmips.h
@@ -75,11 +75,11 @@ static inline int register_bmips_smp_ops(void)
#endif
}
-extern char bmips_reset_nmi_vec;
-extern char bmips_reset_nmi_vec_end;
-extern char bmips_smp_movevec;
-extern char bmips_smp_int_vec;
-extern char bmips_smp_int_vec_end;
+extern char bmips_reset_nmi_vec[];
+extern char bmips_reset_nmi_vec_end[];
+extern char bmips_smp_movevec[];
+extern char bmips_smp_int_vec[];
+extern char bmips_smp_int_vec_end[];
extern int bmips_smp_enabled;
extern int bmips_cpu_offset;
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index d4a293b68249..416d53f587e7 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -453,10 +453,10 @@ static void bmips_wr_vec(unsigned long dst, char *start, char *end)
static inline void bmips_nmi_handler_setup(void)
{
- bmips_wr_vec(BMIPS_NMI_RESET_VEC, &bmips_reset_nmi_vec,
- &bmips_reset_nmi_vec_end);
- bmips_wr_vec(BMIPS_WARM_RESTART_VEC, &bmips_smp_int_vec,
- &bmips_smp_int_vec_end);
+ bmips_wr_vec(BMIPS_NMI_RESET_VEC, bmips_reset_nmi_vec,
+ bmips_reset_nmi_vec_end);
+ bmips_wr_vec(BMIPS_WARM_RESTART_VEC, bmips_smp_int_vec,
+ bmips_smp_int_vec_end);
}
struct reset_vec_info {
diff --git a/drivers/dma/qcom/bam_dma.c b/drivers/dma/qcom/bam_dma.c
index 6497f5283e3b..81acbde13394 100644
--- a/drivers/dma/qcom/bam_dma.c
+++ b/drivers/dma/qcom/bam_dma.c
@@ -686,7 +686,21 @@ static int bam_dma_terminate_all(struct dma_chan *chan)
/* remove all transactions, including active transaction */
spin_lock_irqsave(&bchan->vc.lock, flag);
+ /*
+ * If we have transactions queued, then some might be committed to the
+ * hardware in the desc fifo. The only way to reset the desc fifo is
+ * to do a hardware reset (either by pipe or the entire block).
+ * bam_chan_init_hw() will trigger a pipe reset, and also reinit the
+ * pipe. If the pipe is left disabled (default state after pipe reset)
+ * and is accessed by a connected hardware engine, a fatal error in
+ * the BAM will occur. There is a small window where this could happen
+ * with bam_chan_init_hw(), but it is assumed that the caller has
+ * stopped activity on any attached hardware engine. Make sure to do
+ * this first so that the BAM hardware doesn't cause memory corruption
+ * by accessing freed resources.
+ */
if (bchan->curr_txd) {
+ bam_chan_init_hw(bchan, bchan->curr_txd->dir);
list_add(&bchan->curr_txd->vd.node, &bchan->vc.desc_issued);
bchan->curr_txd = NULL;
}
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 1bb923e3a2bc..4a4782b3cc1b 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -1914,6 +1914,8 @@ static void bcmgenet_link_intr_enable(struct bcmgenet_priv *priv)
*/
if (priv->internal_phy) {
int0_enable |= UMAC_IRQ_LINK_EVENT;
+ if (GENET_IS_V1(priv) || GENET_IS_V2(priv) || GENET_IS_V3(priv))
+ int0_enable |= UMAC_IRQ_PHY_DET_R;
} else if (priv->ext_phy) {
int0_enable |= UMAC_IRQ_LINK_EVENT;
} else if (priv->phy_interface == PHY_INTERFACE_MODE_MOCA) {
@@ -2531,6 +2533,10 @@ static void bcmgenet_irq_task(struct work_struct *work)
bcmgenet_power_up(priv, GENET_POWER_WOL_MAGIC);
}
+ if (status & UMAC_IRQ_PHY_DET_R &&
+ priv->dev->phydev->autoneg != AUTONEG_ENABLE)
+ phy_init_hw(priv->dev->phydev);
+
/* Link UP/DOWN event */
if (status & UMAC_IRQ_LINK_EVENT)
phy_mac_interrupt(priv->phydev,
@@ -2627,8 +2633,7 @@ static irqreturn_t bcmgenet_isr0(int irq, void *dev_id)
}
/* all other interested interrupts handled in bottom half */
- status &= (UMAC_IRQ_LINK_EVENT |
- UMAC_IRQ_MPD_R);
+ status &= (UMAC_IRQ_LINK_EVENT | UMAC_IRQ_MPD_R | UMAC_IRQ_PHY_DET_R);
if (status) {
/* Save irq status for bottom-half processing. */
spin_lock_irqsave(&priv->lock, flags);
diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c
index f7882c1fde16..407e1177d9d1 100644
--- a/drivers/net/ethernet/hisilicon/hip04_eth.c
+++ b/drivers/net/ethernet/hisilicon/hip04_eth.c
@@ -174,6 +174,7 @@ struct hip04_priv {
dma_addr_t rx_phys[RX_DESC_NUM];
unsigned int rx_head;
unsigned int rx_buf_size;
+ unsigned int rx_cnt_remaining;
struct device_node *phy_node;
struct phy_device *phy;
@@ -487,7 +488,6 @@ static int hip04_rx_poll(struct napi_struct *napi, int budget)
struct hip04_priv *priv = container_of(napi, struct hip04_priv, napi);
struct net_device *ndev = priv->ndev;
struct net_device_stats *stats = &ndev->stats;
- unsigned int cnt = hip04_recv_cnt(priv);
struct rx_desc *desc;
struct sk_buff *skb;
unsigned char *buf;
@@ -500,8 +500,8 @@ static int hip04_rx_poll(struct napi_struct *napi, int budget)
/* clean up tx descriptors */
tx_remaining = hip04_tx_reclaim(ndev, false);
-
- while (cnt && !last) {
+ priv->rx_cnt_remaining += hip04_recv_cnt(priv);
+ while (priv->rx_cnt_remaining && !last) {
buf = priv->rx_buf[priv->rx_head];
skb = build_skb(buf, priv->rx_buf_size);
if (unlikely(!skb)) {
@@ -547,11 +547,13 @@ static int hip04_rx_poll(struct napi_struct *napi, int budget)
hip04_set_recv_desc(priv, phys);
priv->rx_head = RX_NEXT(priv->rx_head);
- if (rx >= budget)
+ if (rx >= budget) {
+ --priv->rx_cnt_remaining;
goto done;
+ }
- if (--cnt == 0)
- cnt = hip04_recv_cnt(priv);
+ if (--priv->rx_cnt_remaining == 0)
+ priv->rx_cnt_remaining += hip04_recv_cnt(priv);
}
if (!(priv->reg_inten & RCV_INT)) {
@@ -636,6 +638,7 @@ static int hip04_mac_open(struct net_device *ndev)
int i;
priv->rx_head = 0;
+ priv->rx_cnt_remaining = 0;
priv->tx_head = 0;
priv->tx_tail = 0;
hip04_reset_ppe(priv);
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index 79944302dd46..7d1e8ab956e6 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -470,12 +470,31 @@ void mlx4_init_quotas(struct mlx4_dev *dev)
priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[pf];
}
-static int get_max_gauranteed_vfs_counter(struct mlx4_dev *dev)
+static int
+mlx4_calc_res_counter_guaranteed(struct mlx4_dev *dev,
+ struct resource_allocator *res_alloc,
+ int vf)
{
- /* reduce the sink counter */
- return (dev->caps.max_counters - 1 -
- (MLX4_PF_COUNTERS_PER_PORT * MLX4_MAX_PORTS))
- / MLX4_MAX_PORTS;
+ struct mlx4_active_ports actv_ports;
+ int ports, counters_guaranteed;
+
+ /* For master, only allocate according to the number of phys ports */
+ if (vf == mlx4_master_func_num(dev))
+ return MLX4_PF_COUNTERS_PER_PORT * dev->caps.num_ports;
+
+ /* calculate real number of ports for the VF */
+ actv_ports = mlx4_get_active_ports(dev, vf);
+ ports = bitmap_weight(actv_ports.ports, dev->caps.num_ports);
+ counters_guaranteed = ports * MLX4_VF_COUNTERS_PER_PORT;
+
+ /* If we do not have enough counters for this VF, do not
+ * allocate any for it. '-1' to reduce the sink counter.
+ */
+ if ((res_alloc->res_reserved + counters_guaranteed) >
+ (dev->caps.max_counters - 1))
+ return 0;
+
+ return counters_guaranteed;
}
int mlx4_init_resource_tracker(struct mlx4_dev *dev)
@@ -483,7 +502,6 @@ int mlx4_init_resource_tracker(struct mlx4_dev *dev)
struct mlx4_priv *priv = mlx4_priv(dev);
int i, j;
int t;
- int max_vfs_guarantee_counter = get_max_gauranteed_vfs_counter(dev);
priv->mfunc.master.res_tracker.slave_list =
kzalloc(dev->num_slaves * sizeof(struct slave_list),
@@ -600,16 +618,8 @@ int mlx4_init_resource_tracker(struct mlx4_dev *dev)
break;
case RES_COUNTER:
res_alloc->quota[t] = dev->caps.max_counters;
- if (t == mlx4_master_func_num(dev))
- res_alloc->guaranteed[t] =
- MLX4_PF_COUNTERS_PER_PORT *
- MLX4_MAX_PORTS;
- else if (t <= max_vfs_guarantee_counter)
- res_alloc->guaranteed[t] =
- MLX4_VF_COUNTERS_PER_PORT *
- MLX4_MAX_PORTS;
- else
- res_alloc->guaranteed[t] = 0;
+ res_alloc->guaranteed[t] =
+ mlx4_calc_res_counter_guaranteed(dev, res_alloc, t);
res_alloc->res_free -= res_alloc->guaranteed[t];
break;
default:
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index b6ee0c1690d8..340bd98b8dbd 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2049,8 +2049,11 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
label = info->key.label;
udp_sum = !!(info->key.tun_flags & TUNNEL_CSUM);
- if (info->options_len)
+ if (info->options_len) {
+ if (info->options_len < sizeof(*md))
+ goto drop;
md = ip_tunnel_info_opts(info);
+ }
} else {
md->gbp = skb->mark;
}
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 0a1ebbbd3f16..92530525e355 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -933,6 +933,7 @@ static int __init unittest_data_add(void)
of_fdt_unflatten_tree(unittest_data, NULL, &unittest_data_node);
if (!unittest_data_node) {
pr_warn("%s: No tree to attach; not running tests\n", __func__);
+ kfree(unittest_data);
return -ENODATA;
}
of_node_set_flag(unittest_data_node, OF_DETACHED);
diff --git a/drivers/pinctrl/bcm/pinctrl-ns2-mux.c b/drivers/pinctrl/bcm/pinctrl-ns2-mux.c
index 13a4c2774157..6adfb379ac7e 100644
--- a/drivers/pinctrl/bcm/pinctrl-ns2-mux.c
+++ b/drivers/pinctrl/bcm/pinctrl-ns2-mux.c
@@ -640,8 +640,8 @@ static int ns2_pinmux_enable(struct pinctrl_dev *pctrl_dev,
const struct ns2_pin_function *func;
const struct ns2_pin_group *grp;
- if (grp_select > pinctrl->num_groups ||
- func_select > pinctrl->num_functions)
+ if (grp_select >= pinctrl->num_groups ||
+ func_select >= pinctrl->num_functions)
return -EINVAL;
func = &pinctrl->functions[func_select];
diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c
index 86b348740fcd..ffb1f61d2c75 100644
--- a/drivers/regulator/pfuze100-regulator.c
+++ b/drivers/regulator/pfuze100-regulator.c
@@ -608,7 +608,13 @@ static int pfuze100_regulator_probe(struct i2c_client *client,
/* SW2~SW4 high bit check and modify the voltage value table */
if (i >= sw_check_start && i <= sw_check_end) {
- regmap_read(pfuze_chip->regmap, desc->vsel_reg, &val);
+ ret = regmap_read(pfuze_chip->regmap,
+ desc->vsel_reg, &val);
+ if (ret) {
+ dev_err(&client->dev, "Fails to read from the register.\n");
+ return ret;
+ }
+
if (val & sw_hi) {
if (pfuze_chip->chip_id == PFUZE3000) {
desc->volt_table = pfuze3000_sw2hi;
diff --git a/drivers/regulator/ti-abb-regulator.c b/drivers/regulator/ti-abb-regulator.c
index d2f994298753..6d17357b3a24 100644
--- a/drivers/regulator/ti-abb-regulator.c
+++ b/drivers/regulator/ti-abb-regulator.c
@@ -173,19 +173,14 @@ static int ti_abb_wait_txdone(struct device *dev, struct ti_abb *abb)
while (timeout++ <= abb->settling_time) {
status = ti_abb_check_txdone(abb);
if (status)
- break;
+ return 0;
udelay(1);
}
- if (timeout > abb->settling_time) {
- dev_warn_ratelimited(dev,
- "%s:TRANXDONE timeout(%duS) int=0x%08x\n",
- __func__, timeout, readl(abb->int_base));
- return -ETIMEDOUT;
- }
-
- return 0;
+ dev_warn_ratelimited(dev, "%s:TRANXDONE timeout(%duS) int=0x%08x\n",
+ __func__, timeout, readl(abb->int_base));
+ return -ETIMEDOUT;
}
/**
@@ -205,19 +200,14 @@ static int ti_abb_clear_all_txdone(struct device *dev, const struct ti_abb *abb)
status = ti_abb_check_txdone(abb);
if (!status)
- break;
+ return 0;
udelay(1);
}
- if (timeout > abb->settling_time) {
- dev_warn_ratelimited(dev,
- "%s:TRANXDONE timeout(%duS) int=0x%08x\n",
- __func__, timeout, readl(abb->int_base));
- return -ETIMEDOUT;
- }
-
- return 0;
+ dev_warn_ratelimited(dev, "%s:TRANXDONE timeout(%duS) int=0x%08x\n",
+ __func__, timeout, readl(abb->int_base));
+ return -ETIMEDOUT;
}
/**
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 17b1574920fd..941e3f25b4a9 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -986,7 +986,7 @@ config SCSI_SNI_53C710
config 53C700_LE_ON_BE
bool
- depends on SCSI_LASI700
+ depends on SCSI_LASI700 || SCSI_SNI_53C710
default y
config SCSI_STEX
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 98787588247b..60c288526355 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -527,6 +527,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
unsigned int tpg_desc_tbl_off;
unsigned char orig_transition_tmo;
unsigned long flags;
+ bool transitioning_sense = false;
if (!pg->expiry) {
unsigned long transition_tmo = ALUA_FAILOVER_TIMEOUT * HZ;
@@ -571,13 +572,19 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
goto retry;
}
/*
- * Retry on ALUA state transition or if any
- * UNIT ATTENTION occurred.
+ * If the array returns with 'ALUA state transition'
+ * sense code here it cannot return RTPG data during
+ * transition. So set the state to 'transitioning' directly.
*/
if (sense_hdr.sense_key == NOT_READY &&
- sense_hdr.asc == 0x04 && sense_hdr.ascq == 0x0a)
- err = SCSI_DH_RETRY;
- else if (sense_hdr.sense_key == UNIT_ATTENTION)
+ sense_hdr.asc == 0x04 && sense_hdr.ascq == 0x0a) {
+ transitioning_sense = true;
+ goto skip_rtpg;
+ }
+ /*
+ * Retry on any other UNIT ATTENTION occurred.
+ */
+ if (sense_hdr.sense_key == UNIT_ATTENTION)
err = SCSI_DH_RETRY;
if (err == SCSI_DH_RETRY &&
pg->expiry != 0 && time_before(jiffies, pg->expiry)) {
@@ -665,7 +672,11 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
off = 8 + (desc[7] * 4);
}
+ skip_rtpg:
spin_lock_irqsave(&pg->lock, flags);
+ if (transitioning_sense)
+ pg->state = SCSI_ACCESS_STATE_TRANSITIONING;
+
sdev_printk(KERN_INFO, sdev,
"%s: port group %02x state %c %s supports %c%c%c%c%c%c%c\n",
ALUA_DH_NAME, pg->group_id, print_alua_state(pg->state),
diff --git a/drivers/scsi/sni_53c710.c b/drivers/scsi/sni_53c710.c
index 76278072147e..b0f5220ae23a 100644
--- a/drivers/scsi/sni_53c710.c
+++ b/drivers/scsi/sni_53c710.c
@@ -78,10 +78,8 @@ static int snirm710_probe(struct platform_device *dev)
base = res->start;
hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL);
- if (!hostdata) {
- dev_printk(KERN_ERR, dev, "Failed to allocate host data\n");
+ if (!hostdata)
return -ENOMEM;
- }
hostdata->dev = &dev->dev;
dma_set_mask(&dev->dev, DMA_BIT_MASK(32));
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index cc38a3509f78..c3d576ed6f13 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -1046,27 +1046,6 @@ passthrough_parse_cdb(struct se_cmd *cmd,
{
unsigned char *cdb = cmd->t_task_cdb;
- /*
- * Clear a lun set in the cdb if the initiator talking to use spoke
- * and old standards version, as we can't assume the underlying device
- * won't choke up on it.
- */
- switch (cdb[0]) {
- case READ_10: /* SBC - RDProtect */
- case READ_12: /* SBC - RDProtect */
- case READ_16: /* SBC - RDProtect */
- case SEND_DIAGNOSTIC: /* SPC - SELF-TEST Code */
- case VERIFY: /* SBC - VRProtect */
- case VERIFY_16: /* SBC - VRProtect */
- case WRITE_VERIFY: /* SBC - VRProtect */
- case WRITE_VERIFY_12: /* SBC - VRProtect */
- case MAINTENANCE_IN: /* SPC - Parameter Data Format for SA RTPG */
- break;
- default:
- cdb[1] &= 0x1f; /* clear logical unit number */
- break;
- }
-
/*
* For REPORT LUNS we always need to emulate the response, for everything
* else, pass it up.
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 5367b684c1f7..7ae21ad420fb 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -1178,6 +1178,11 @@ void cifsFileInfo_put(struct cifsFileInfo *cifs_file);
struct cifsInodeInfo {
bool can_cache_brlcks;
struct list_head llist; /* locks helb by this inode */
+ /*
+ * NOTE: Some code paths call down_read(lock_sem) twice, so
+ * we must always use use cifs_down_write() instead of down_write()
+ * for this semaphore to avoid deadlocks.
+ */
struct rw_semaphore lock_sem; /* protect the fields above */
/* BB add in lists for dirty pages i.e. write caching info for oplock */
struct list_head openFileList;
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index cd8025a249bb..cdf244df91c2 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -138,6 +138,7 @@ extern int cifs_unlock_range(struct cifsFileInfo *cfile,
struct file_lock *flock, const unsigned int xid);
extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
+extern void cifs_down_write(struct rw_semaphore *sem);
extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
struct file *file,
struct tcon_link *tlink,
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 3504ef015493..1c3f262d9c4d 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -280,6 +280,13 @@ cifs_has_mand_locks(struct cifsInodeInfo *cinode)
return has_locks;
}
+void
+cifs_down_write(struct rw_semaphore *sem)
+{
+ while (!down_write_trylock(sem))
+ msleep(10);
+}
+
struct cifsFileInfo *
cifs_new_fileinfo(struct cifs_fid *fid, struct file *file,
struct tcon_link *tlink, __u32 oplock)
@@ -305,7 +312,7 @@ cifs_new_fileinfo(struct cifs_fid *fid, struct file *file,
INIT_LIST_HEAD(&fdlocks->locks);
fdlocks->cfile = cfile;
cfile->llist = fdlocks;
- down_write(&cinode->lock_sem);
+ cifs_down_write(&cinode->lock_sem);
list_add(&fdlocks->llist, &cinode->llist);
up_write(&cinode->lock_sem);
@@ -457,7 +464,7 @@ void _cifsFileInfo_put(struct cifsFileInfo *cifs_file, bool wait_oplock_handler)
* Delete any outstanding lock records. We'll lose them when the file
* is closed anyway.
*/
- down_write(&cifsi->lock_sem);
+ cifs_down_write(&cifsi->lock_sem);
list_for_each_entry_safe(li, tmp, &cifs_file->llist->locks, llist) {
list_del(&li->llist);
cifs_del_lock_waiters(li);
@@ -1011,7 +1018,7 @@ static void
cifs_lock_add(struct cifsFileInfo *cfile, struct cifsLockInfo *lock)
{
struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
- down_write(&cinode->lock_sem);
+ cifs_down_write(&cinode->lock_sem);
list_add_tail(&lock->llist, &cfile->llist->locks);
up_write(&cinode->lock_sem);
}
@@ -1033,7 +1040,7 @@ cifs_lock_add_if(struct cifsFileInfo *cfile, struct cifsLockInfo *lock,
try_again:
exist = false;
- down_write(&cinode->lock_sem);
+ cifs_down_write(&cinode->lock_sem);
exist = cifs_find_lock_conflict(cfile, lock->offset, lock->length,
lock->type, &conf_lock, CIFS_LOCK_OP);
@@ -1055,7 +1062,7 @@ cifs_lock_add_if(struct cifsFileInfo *cfile, struct cifsLockInfo *lock,
(lock->blist.next == &lock->blist));
if (!rc)
goto try_again;
- down_write(&cinode->lock_sem);
+ cifs_down_write(&cinode->lock_sem);
list_del_init(&lock->blist);
}
@@ -1108,7 +1115,7 @@ cifs_posix_lock_set(struct file *file, struct file_lock *flock)
return rc;
try_again:
- down_write(&cinode->lock_sem);
+ cifs_down_write(&cinode->lock_sem);
if (!cinode->can_cache_brlcks) {
up_write(&cinode->lock_sem);
return rc;
@@ -1312,7 +1319,7 @@ cifs_push_locks(struct cifsFileInfo *cfile)
int rc = 0;
/* we are going to update can_cache_brlcks here - need a write access */
- down_write(&cinode->lock_sem);
+ cifs_down_write(&cinode->lock_sem);
if (!cinode->can_cache_brlcks) {
up_write(&cinode->lock_sem);
return rc;
@@ -1501,7 +1508,7 @@ cifs_unlock_range(struct cifsFileInfo *cfile, struct file_lock *flock,
if (!buf)
return -ENOMEM;
- down_write(&cinode->lock_sem);
+ cifs_down_write(&cinode->lock_sem);
for (i = 0; i < 2; i++) {
cur = buf;
num = 0;
diff --git a/fs/cifs/smb2file.c b/fs/cifs/smb2file.c
index dee5250701de..41f1a5dd33a5 100644
--- a/fs/cifs/smb2file.c
+++ b/fs/cifs/smb2file.c
@@ -138,7 +138,7 @@ smb2_unlock_range(struct cifsFileInfo *cfile, struct file_lock *flock,
cur = buf;
- down_write(&cinode->lock_sem);
+ cifs_down_write(&cinode->lock_sem);
list_for_each_entry_safe(li, tmp, &cfile->llist->locks, llist) {
if (flock->fl_start > li->offset ||
(flock->fl_start + length) <
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index f8041f9de31e..d11f56bc9c7e 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -284,6 +284,29 @@ static inline bool gfpflags_allow_blocking(const gfp_t gfp_flags)
return !!(gfp_flags & __GFP_DIRECT_RECLAIM);
}
+/**
+ * gfpflags_normal_context - is gfp_flags a normal sleepable context?
+ * @gfp_flags: gfp_flags to test
+ *
+ * Test whether @gfp_flags indicates that the allocation is from the
+ * %current context and allowed to sleep.
+ *
+ * An allocation being allowed to block doesn't mean it owns the %current
+ * context. When direct reclaim path tries to allocate memory, the
+ * allocation context is nested inside whatever %current was doing at the
+ * time of the original allocation. The nested allocation may be allowed
+ * to block but modifying anything %current owns can corrupt the outer
+ * context's expectations.
+ *
+ * %true result from this function indicates that the allocation context
+ * can sleep and use anything that's associated with %current.
+ */
+static inline bool gfpflags_normal_context(const gfp_t gfp_flags)
+{
+ return (gfp_flags & (__GFP_DIRECT_RECLAIM | __GFP_MEMALLOC)) ==
+ __GFP_DIRECT_RECLAIM;
+}
+
#ifdef CONFIG_HIGHMEM
#define OPT_ZONE_HIGHMEM ZONE_HIGHMEM
#else
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index f8761774a94f..e37112ac332f 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1178,7 +1178,8 @@ static inline __u32 skb_get_hash_flowi4(struct sk_buff *skb, const struct flowi4
return skb->hash;
}
-__u32 skb_get_hash_perturb(const struct sk_buff *skb, u32 perturb);
+__u32 skb_get_hash_perturb(const struct sk_buff *skb,
+ const siphash_key_t *perturb);
static inline __u32 skb_get_hash_raw(const struct sk_buff *skb)
{
diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h
index d9534927d93b..1505cf7a4aaf 100644
--- a/include/net/flow_dissector.h
+++ b/include/net/flow_dissector.h
@@ -3,6 +3,7 @@
#include <linux/types.h>
#include <linux/in6.h>
+#include <linux/siphash.h>
#include <uapi/linux/if_ether.h>
/**
@@ -151,7 +152,7 @@ struct flow_dissector {
struct flow_keys {
struct flow_dissector_key_control control;
#define FLOW_KEYS_HASH_START_FIELD basic
- struct flow_dissector_key_basic basic;
+ struct flow_dissector_key_basic basic __aligned(SIPHASH_ALIGNMENT);
struct flow_dissector_key_tags tags;
struct flow_dissector_key_vlan vlan;
struct flow_dissector_key_keyid keyid;
diff --git a/include/net/fq.h b/include/net/fq.h
index 6d8521a30c5c..2c7687902789 100644
--- a/include/net/fq.h
+++ b/include/net/fq.h
@@ -70,7 +70,7 @@ struct fq {
struct list_head backlogs;
spinlock_t lock;
u32 flows_cnt;
- u32 perturbation;
+ siphash_key_t perturbation;
u32 limit;
u32 memory_limit;
u32 memory_usage;
diff --git a/include/net/fq_impl.h b/include/net/fq_impl.h
index 4e6131cd3f43..45a0d9a006a0 100644
--- a/include/net/fq_impl.h
+++ b/include/net/fq_impl.h
@@ -105,7 +105,7 @@ static struct fq_flow *fq_flow_classify(struct fq *fq,
lockdep_assert_held(&fq->lock);
- hash = skb_get_hash_perturb(skb, fq->perturbation);
+ hash = skb_get_hash_perturb(skb, &fq->perturbation);
idx = reciprocal_scale(hash, fq->flows_cnt);
flow = &fq->flows[idx];
@@ -252,7 +252,7 @@ static int fq_init(struct fq *fq, int flows_cnt)
INIT_LIST_HEAD(&fq->backlogs);
spin_lock_init(&fq->lock);
fq->flows_cnt = max_t(u32, flows_cnt, 1);
- fq->perturbation = prandom_u32();
+ get_random_bytes(&fq->perturbation, sizeof(fq->perturbation));
fq->quantum = 300;
fq->limit = 8192;
fq->memory_limit = 16 << 20; /* 16 MBytes */
diff --git a/include/net/sock.h b/include/net/sock.h
index 116308632fae..469c012a6d01 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2045,12 +2045,17 @@ struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp,
* sk_page_frag - return an appropriate page_frag
* @sk: socket
*
- * If socket allocation mode allows current thread to sleep, it means its
- * safe to use the per task page_frag instead of the per socket one.
+ * Use the per task page_frag instead of the per socket one for
+ * optimization when we know that we're in the normal context and owns
+ * everything that's associated with %current.
+ *
+ * gfpflags_allow_blocking() isn't enough here as direct reclaim may nest
+ * inside other socket operations and end up recursing into sk_page_frag()
+ * while it's already in use.
*/
static inline struct page_frag *sk_page_frag(struct sock *sk)
{
- if (gfpflags_allow_blocking(sk->sk_allocation))
+ if (gfpflags_normal_context(sk->sk_allocation))
return ¤t->task_frag;
return &sk->sk_frag;
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index a519d3cab1a2..6aef4a0bed29 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -586,7 +586,7 @@ static void alarm_timer_get(struct k_itimer *timr,
static int alarm_timer_del(struct k_itimer *timr)
{
if (!rtcdev)
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
if (alarm_try_to_cancel(&timr->it.alarm.alarmtimer) < 0)
return TIMER_RETRY;
@@ -610,7 +610,7 @@ static int alarm_timer_set(struct k_itimer *timr, int flags,
ktime_t exp;
if (!rtcdev)
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
if (flags & ~TIMER_ABSTIME)
return -EINVAL;
diff --git a/net/core/datagram.c b/net/core/datagram.c
index 146502f310ce..619c63a74594 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -96,7 +96,7 @@ int __skb_wait_for_more_packets(struct sock *sk, int *err, long *timeo_p,
if (error)
goto out_err;
- if (sk->sk_receive_queue.prev != skb)
+ if (READ_ONCE(sk->sk_receive_queue.prev) != skb)
goto out;
/* Socket shut down? */
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index ffe7b03c9ab5..454f73fcb3a6 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1438,11 +1438,13 @@ static int ethtool_reset(struct net_device *dev, char __user *useraddr)
static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
{
- struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
+ struct ethtool_wolinfo wol;
if (!dev->ethtool_ops->get_wol)
return -EOPNOTSUPP;
+ memset(&wol, 0, sizeof(struct ethtool_wolinfo));
+ wol.cmd = ETHTOOL_GWOL;
dev->ethtool_ops->get_wol(dev, &wol);
if (copy_to_user(useraddr, &wol, sizeof(wol)))
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index ab7c50026cae..26b0f70d2f1c 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -563,45 +563,34 @@ bool __skb_flow_dissect(const struct sk_buff *skb,
}
EXPORT_SYMBOL(__skb_flow_dissect);
-static u32 hashrnd __read_mostly;
+static siphash_key_t hashrnd __read_mostly;
static __always_inline void __flow_hash_secret_init(void)
{
net_get_random_once(&hashrnd, sizeof(hashrnd));
}
-static __always_inline u32 __flow_hash_words(const u32 *words, u32 length,
- u32 keyval)
+static const void *flow_keys_hash_start(const struct flow_keys *flow)
{
- return jhash2(words, length, keyval);
-}
-
-static inline const u32 *flow_keys_hash_start(const struct flow_keys *flow)
-{
- const void *p = flow;
-
- BUILD_BUG_ON(FLOW_KEYS_HASH_OFFSET % sizeof(u32));
- return (const u32 *)(p + FLOW_KEYS_HASH_OFFSET);
+ BUILD_BUG_ON(FLOW_KEYS_HASH_OFFSET % SIPHASH_ALIGNMENT);
+ return &flow->FLOW_KEYS_HASH_START_FIELD;
}
static inline size_t flow_keys_hash_length(const struct flow_keys *flow)
{
- size_t diff = FLOW_KEYS_HASH_OFFSET + sizeof(flow->addrs);
- BUILD_BUG_ON((sizeof(*flow) - FLOW_KEYS_HASH_OFFSET) % sizeof(u32));
- BUILD_BUG_ON(offsetof(typeof(*flow), addrs) !=
- sizeof(*flow) - sizeof(flow->addrs));
+ size_t len = offsetof(typeof(*flow), addrs) - FLOW_KEYS_HASH_OFFSET;
switch (flow->control.addr_type) {
case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
- diff -= sizeof(flow->addrs.v4addrs);
+ len += sizeof(flow->addrs.v4addrs);
break;
case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
- diff -= sizeof(flow->addrs.v6addrs);
+ len += sizeof(flow->addrs.v6addrs);
break;
case FLOW_DISSECTOR_KEY_TIPC_ADDRS:
- diff -= sizeof(flow->addrs.tipcaddrs);
+ len += sizeof(flow->addrs.tipcaddrs);
break;
}
- return (sizeof(*flow) - diff) / sizeof(u32);
+ return len;
}
__be32 flow_get_u32_src(const struct flow_keys *flow)
@@ -667,14 +656,15 @@ static inline void __flow_hash_consistentify(struct flow_keys *keys)
}
}
-static inline u32 __flow_hash_from_keys(struct flow_keys *keys, u32 keyval)
+static inline u32 __flow_hash_from_keys(struct flow_keys *keys,
+ const siphash_key_t *keyval)
{
u32 hash;
__flow_hash_consistentify(keys);
- hash = __flow_hash_words(flow_keys_hash_start(keys),
- flow_keys_hash_length(keys), keyval);
+ hash = siphash(flow_keys_hash_start(keys),
+ flow_keys_hash_length(keys), keyval);
if (!hash)
hash = 1;
@@ -684,12 +674,13 @@ static inline u32 __flow_hash_from_keys(struct flow_keys *keys, u32 keyval)
u32 flow_hash_from_keys(struct flow_keys *keys)
{
__flow_hash_secret_init();
- return __flow_hash_from_keys(keys, hashrnd);
+ return __flow_hash_from_keys(keys, &hashrnd);
}
EXPORT_SYMBOL(flow_hash_from_keys);
static inline u32 ___skb_get_hash(const struct sk_buff *skb,
- struct flow_keys *keys, u32 keyval)
+ struct flow_keys *keys,
+ const siphash_key_t *keyval)
{
skb_flow_dissect_flow_keys(skb, keys,
FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL);
@@ -737,7 +728,7 @@ u32 __skb_get_hash_symmetric(struct sk_buff *skb)
NULL, 0, 0, 0,
FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL);
- return __flow_hash_from_keys(&keys, hashrnd);
+ return __flow_hash_from_keys(&keys, &hashrnd);
}
EXPORT_SYMBOL_GPL(__skb_get_hash_symmetric);
@@ -757,13 +748,14 @@ void __skb_get_hash(struct sk_buff *skb)
__flow_hash_secret_init();
- hash = ___skb_get_hash(skb, &keys, hashrnd);
+ hash = ___skb_get_hash(skb, &keys, &hashrnd);
__skb_set_sw_hash(skb, hash, flow_keys_have_l4(&keys));
}
EXPORT_SYMBOL(__skb_get_hash);
-__u32 skb_get_hash_perturb(const struct sk_buff *skb, u32 perturb)
+__u32 skb_get_hash_perturb(const struct sk_buff *skb,
+ const siphash_key_t *perturb)
{
struct flow_keys keys;
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 1d6d3aaa8c3d..322268b88fec 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -121,7 +121,7 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
inet->inet_daddr,
inet->inet_sport,
inet->inet_dport);
- inet->inet_id = dp->dccps_iss ^ jiffies;
+ inet->inet_id = prandom_u32();
err = dccp_connect(sk);
rt = NULL;
@@ -417,7 +417,7 @@ struct sock *dccp_v4_request_recv_sock(const struct sock *sk,
RCU_INIT_POINTER(newinet->inet_opt, rcu_dereference(ireq->ireq_opt));
newinet->mc_index = inet_iif(skb);
newinet->mc_ttl = ip_hdr(skb)->ttl;
- newinet->inet_id = jiffies;
+ newinet->inet_id = prandom_u32();
if (dst == NULL && (dst = inet_csk_route_child_sock(sk, newsk, req)) == NULL)
goto put_and_exit;
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 0f99297b2fb3..f1792a847d0b 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -59,7 +59,7 @@ static struct dsa_switch_tree *dsa_add_dst(u32 tree)
dst->tree = tree;
dst->cpu_switch = -1;
INIT_LIST_HEAD(&dst->list);
- list_add_tail(&dsa_switch_trees, &dst->list);
+ list_add_tail(&dst->list, &dsa_switch_trees);
kref_init(&dst->refcount);
return dst;
diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c
index f915abff1350..d3eddfd13875 100644
--- a/net/ipv4/datagram.c
+++ b/net/ipv4/datagram.c
@@ -75,7 +75,7 @@ int __ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len
inet->inet_dport = usin->sin_port;
sk->sk_state = TCP_ESTABLISHED;
sk_set_txhash(sk);
- inet->inet_id = jiffies;
+ inet->inet_id = prandom_u32();
sk_dst_set(sk, &rt->dst);
err = 0;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 848f2c1da8a5..cced424e1176 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -239,7 +239,7 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
inet->inet_sport,
usin->sin_port);
- inet->inet_id = tp->write_seq ^ jiffies;
+ inet->inet_id = prandom_u32();
err = tcp_connect(sk);
@@ -1307,7 +1307,7 @@ struct sock *tcp_v4_syn_recv_sock(const struct sock *sk, struct sk_buff *skb,
inet_csk(newsk)->icsk_ext_hdr_len = 0;
if (inet_opt)
inet_csk(newsk)->icsk_ext_hdr_len = inet_opt->opt.optlen;
- newinet->inet_id = newtp->write_seq ^ jiffies;
+ newinet->inet_id = prandom_u32();
if (!dst) {
dst = inet_csk_route_child_sock(sk, newsk, req);
diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c
index a5ea0e9b6be4..29b7465c9d8a 100644
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -57,7 +57,7 @@ struct fq_codel_sched_data {
struct fq_codel_flow *flows; /* Flows table [flows_cnt] */
u32 *backlogs; /* backlog table [flows_cnt] */
u32 flows_cnt; /* number of flows */
- u32 perturbation; /* hash perturbation */
+ siphash_key_t perturbation; /* hash perturbation */
u32 quantum; /* psched_mtu(qdisc_dev(sch)); */
u32 drop_batch_size;
u32 memory_limit;
@@ -75,7 +75,7 @@ struct fq_codel_sched_data {
static unsigned int fq_codel_hash(const struct fq_codel_sched_data *q,
struct sk_buff *skb)
{
- u32 hash = skb_get_hash_perturb(skb, q->perturbation);
+ u32 hash = skb_get_hash_perturb(skb, &q->perturbation);
return reciprocal_scale(hash, q->flows_cnt);
}
@@ -482,7 +482,7 @@ static int fq_codel_init(struct Qdisc *sch, struct nlattr *opt)
q->memory_limit = 32 << 20; /* 32 MBytes */
q->drop_batch_size = 64;
q->quantum = psched_mtu(qdisc_dev(sch));
- q->perturbation = prandom_u32();
+ get_random_bytes(&q->perturbation, sizeof(q->perturbation));
INIT_LIST_HEAD(&q->new_flows);
INIT_LIST_HEAD(&q->old_flows);
codel_params_init(&q->cparams);
diff --git a/net/sched/sch_hhf.c b/net/sched/sch_hhf.c
index fe32239253a6..1367fe94d630 100644
--- a/net/sched/sch_hhf.c
+++ b/net/sched/sch_hhf.c
@@ -4,11 +4,11 @@
* Copyright (C) 2013 Nandita Dukkipati <nanditad@...gle.com>
*/
-#include <linux/jhash.h>
#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/vmalloc.h>
+#include <linux/siphash.h>
#include <net/pkt_sched.h>
#include <net/sock.h>
@@ -125,7 +125,7 @@ struct wdrr_bucket {
struct hhf_sched_data {
struct wdrr_bucket buckets[WDRR_BUCKET_CNT];
- u32 perturbation; /* hash perturbation */
+ siphash_key_t perturbation; /* hash perturbation */
u32 quantum; /* psched_mtu(qdisc_dev(sch)); */
u32 drop_overlimit; /* number of times max qdisc packet
* limit was hit
@@ -263,7 +263,7 @@ static enum wdrr_bucket_idx hhf_classify(struct sk_buff *skb, struct Qdisc *sch)
}
/* Get hashed flow-id of the skb. */
- hash = skb_get_hash_perturb(skb, q->perturbation);
+ hash = skb_get_hash_perturb(skb, &q->perturbation);
/* Check if this packet belongs to an already established HH flow. */
flow_pos = hash & HHF_BIT_MASK;
@@ -593,7 +593,7 @@ static int hhf_init(struct Qdisc *sch, struct nlattr *opt)
sch->limit = 1000;
q->quantum = psched_mtu(qdisc_dev(sch));
- q->perturbation = prandom_u32();
+ get_random_bytes(&q->perturbation, sizeof(q->perturbation));
INIT_LIST_HEAD(&q->new_buckets);
INIT_LIST_HEAD(&q->old_buckets);
diff --git a/net/sched/sch_sfb.c b/net/sched/sch_sfb.c
index 20a350bd1b1d..bc176bd48c02 100644
--- a/net/sched/sch_sfb.c
+++ b/net/sched/sch_sfb.c
@@ -22,7 +22,7 @@
#include <linux/errno.h>
#include <linux/skbuff.h>
#include <linux/random.h>
-#include <linux/jhash.h>
+#include <linux/siphash.h>
#include <net/ip.h>
#include <net/pkt_sched.h>
#include <net/inet_ecn.h>
@@ -48,7 +48,7 @@ struct sfb_bucket {
* (Section 4.4 of SFB reference : moving hash functions)
*/
struct sfb_bins {
- u32 perturbation; /* jhash perturbation */
+ siphash_key_t perturbation; /* siphash key */
struct sfb_bucket bins[SFB_LEVELS][SFB_NUMBUCKETS];
};
@@ -219,7 +219,8 @@ static u32 sfb_compute_qlen(u32 *prob_r, u32 *avgpm_r, const struct sfb_sched_da
static void sfb_init_perturbation(u32 slot, struct sfb_sched_data *q)
{
- q->bins[slot].perturbation = prandom_u32();
+ get_random_bytes(&q->bins[slot].perturbation,
+ sizeof(q->bins[slot].perturbation));
}
static void sfb_swap_slot(struct sfb_sched_data *q)
@@ -314,9 +315,9 @@ static int sfb_enqueue(struct sk_buff *skb, struct Qdisc *sch,
/* If using external classifiers, get result and record it. */
if (!sfb_classify(skb, fl, &ret, &salt))
goto other_drop;
- sfbhash = jhash_1word(salt, q->bins[slot].perturbation);
+ sfbhash = siphash_1u32(salt, &q->bins[slot].perturbation);
} else {
- sfbhash = skb_get_hash_perturb(skb, q->bins[slot].perturbation);
+ sfbhash = skb_get_hash_perturb(skb, &q->bins[slot].perturbation);
}
@@ -352,7 +353,7 @@ static int sfb_enqueue(struct sk_buff *skb, struct Qdisc *sch,
/* Inelastic flow */
if (q->double_buffering) {
sfbhash = skb_get_hash_perturb(skb,
- q->bins[slot].perturbation);
+ &q->bins[slot].perturbation);
if (!sfbhash)
sfbhash = 1;
sfb_skb_cb(skb)->hashes[slot] = sfbhash;
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index d8c2b6baaad2..a8d82cb7f073 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -18,7 +18,7 @@
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/skbuff.h>
-#include <linux/jhash.h>
+#include <linux/siphash.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <net/netlink.h>
@@ -120,7 +120,7 @@ struct sfq_sched_data {
u8 headdrop;
u8 maxdepth; /* limit of packets per flow */
- u32 perturbation;
+ siphash_key_t perturbation;
u8 cur_depth; /* depth of longest slot */
u8 flags;
unsigned short scaled_quantum; /* SFQ_ALLOT_SIZE(quantum) */
@@ -158,7 +158,7 @@ static inline struct sfq_head *sfq_dep_head(struct sfq_sched_data *q, sfq_index
static unsigned int sfq_hash(const struct sfq_sched_data *q,
const struct sk_buff *skb)
{
- return skb_get_hash_perturb(skb, q->perturbation) & (q->divisor - 1);
+ return skb_get_hash_perturb(skb, &q->perturbation) & (q->divisor - 1);
}
static unsigned int sfq_classify(struct sk_buff *skb, struct Qdisc *sch,
@@ -607,9 +607,11 @@ static void sfq_perturbation(unsigned long arg)
struct Qdisc *sch = (struct Qdisc *)arg;
struct sfq_sched_data *q = qdisc_priv(sch);
spinlock_t *root_lock = qdisc_lock(qdisc_root_sleeping(sch));
+ siphash_key_t nkey;
+ get_random_bytes(&nkey, sizeof(nkey));
spin_lock(root_lock);
- q->perturbation = prandom_u32();
+ q->perturbation = nkey;
if (!q->filter_list && q->tail)
sfq_rehash(sch);
spin_unlock(root_lock);
@@ -681,7 +683,7 @@ static int sfq_change(struct Qdisc *sch, struct nlattr *opt)
del_timer(&q->perturb_timer);
if (q->perturb_period) {
mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
- q->perturbation = prandom_u32();
+ get_random_bytes(&q->perturbation, sizeof(q->perturbation));
}
sch_tree_unlock(sch);
kfree(p);
@@ -737,7 +739,7 @@ static int sfq_init(struct Qdisc *sch, struct nlattr *opt)
q->quantum = psched_mtu(qdisc_dev(sch));
q->scaled_quantum = SFQ_ALLOT_SIZE(q->quantum);
q->perturb_period = 0;
- q->perturbation = prandom_u32();
+ get_random_bytes(&q->perturbation, sizeof(q->perturbation));
if (opt) {
int err = sfq_change(sch, opt);
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index c952abf22535..21ec92011585 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -7734,7 +7734,7 @@ void sctp_copy_sock(struct sock *newsk, struct sock *sk,
newinet->inet_rcv_saddr = inet->inet_rcv_saddr;
newinet->inet_dport = htons(asoc->peer.port);
newinet->pmtudisc = inet->pmtudisc;
- newinet->inet_id = asoc->next_tsn ^ jiffies;
+ newinet->inet_id = prandom_u32();
newinet->uc_ttl = inet->uc_ttl;
newinet->mc_loop = 1;
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index c03c9da076c2..28eb55bc4663 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -948,8 +948,7 @@ static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len)
}
if (in) {
- if (in & WMFW_CTL_FLAG_READABLE)
- out |= rd;
+ out |= rd;
if (in & WMFW_CTL_FLAG_WRITEABLE)
out |= wr;
if (in & WMFW_CTL_FLAG_VOLATILE)
diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 08bfee447a36..94b6f9c7dd6b 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -649,7 +649,7 @@ static int rockchip_i2s_probe(struct platform_device *pdev)
ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
if (ret) {
dev_err(&pdev->dev, "Could not register PCM\n");
- return ret;
+ goto err_suspend;
}
return 0;
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index d426dcb18ce9..496a4ca11667 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -674,6 +674,7 @@ static char *compact_gfp_flags(char *gfp_flags)
new = realloc(new_flags, len + strlen(cpt) + 2);
if (new == NULL) {
free(new_flags);
+ free(orig_flags);
return NULL;
}
diff --git a/tools/testing/selftests/net/reuseport_dualstack.c b/tools/testing/selftests/net/reuseport_dualstack.c
index 90958aaaafb9..2737d6a595f4 100644
--- a/tools/testing/selftests/net/reuseport_dualstack.c
+++ b/tools/testing/selftests/net/reuseport_dualstack.c
@@ -128,7 +128,7 @@ static void test(int *rcv_fds, int count, int proto)
{
struct epoll_event ev;
int epfd, i, test_fd;
- uint16_t test_family;
+ int test_family;
socklen_t len;
epfd = epoll_create(1);
@@ -145,6 +145,7 @@ static void test(int *rcv_fds, int count, int proto)
send_from_v4(proto);
test_fd = receive_once(epfd, proto);
+ len = sizeof(test_family);
if (getsockopt(test_fd, SOL_SOCKET, SO_DOMAIN, &test_family, &len))
error(1, errno, "failed to read socket domain");
if (test_family != AF_INET)
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