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Message-Id: <1607695972252186@kroah.com>
Date: Fri, 11 Dec 2020 15:12:53 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, jslaby@...e.cz,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: Linux 4.14.212
diff --git a/Makefile b/Makefile
index 31c2f8973a5d..37c1bd221115 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 14
-SUBLEVEL = 211
+SUBLEVEL = 212
EXTRAVERSION =
NAME = Petit Gorille
diff --git a/arch/x86/include/asm/insn.h b/arch/x86/include/asm/insn.h
index c2c01f84df75..3e0e18d376d2 100644
--- a/arch/x86/include/asm/insn.h
+++ b/arch/x86/include/asm/insn.h
@@ -208,6 +208,21 @@ static inline int insn_offset_immediate(struct insn *insn)
return insn_offset_displacement(insn) + insn->displacement.nbytes;
}
+/**
+ * for_each_insn_prefix() -- Iterate prefixes in the instruction
+ * @insn: Pointer to struct insn.
+ * @idx: Index storage.
+ * @prefix: Prefix byte.
+ *
+ * Iterate prefix bytes of given @insn. Each prefix byte is stored in @prefix
+ * and the index is stored in @idx (note that this @idx is just for a cursor,
+ * do not change it.)
+ * Since prefixes.nbytes can be bigger than 4 if some prefixes
+ * are repeated, it cannot be used for looping over the prefixes.
+ */
+#define for_each_insn_prefix(insn, idx, prefix) \
+ for (idx = 0; idx < ARRAY_SIZE(insn->prefixes.bytes) && (prefix = insn->prefixes.bytes[idx]) != 0; idx++)
+
#define POP_SS_OPCODE 0x1f
#define MOV_SREG_OPCODE 0x8e
diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
index 73391c1bd2a9..52bb7413f352 100644
--- a/arch/x86/kernel/uprobes.c
+++ b/arch/x86/kernel/uprobes.c
@@ -268,10 +268,11 @@ static volatile u32 good_2byte_insns[256 / 32] = {
static bool is_prefix_bad(struct insn *insn)
{
+ insn_byte_t p;
int i;
- for (i = 0; i < insn->prefixes.nbytes; i++) {
- switch (insn->prefixes.bytes[i]) {
+ for_each_insn_prefix(insn, i, p) {
+ switch (p) {
case 0x26: /* INAT_PFX_ES */
case 0x2E: /* INAT_PFX_CS */
case 0x36: /* INAT_PFX_DS */
@@ -711,6 +712,7 @@ static const struct uprobe_xol_ops branch_xol_ops = {
static int branch_setup_xol_ops(struct arch_uprobe *auprobe, struct insn *insn)
{
u8 opc1 = OPCODE1(insn);
+ insn_byte_t p;
int i;
switch (opc1) {
@@ -741,8 +743,8 @@ static int branch_setup_xol_ops(struct arch_uprobe *auprobe, struct insn *insn)
* Intel and AMD behavior differ in 64-bit mode: Intel ignores 66 prefix.
* No one uses these insns, reject any branch insns with such prefix.
*/
- for (i = 0; i < insn->prefixes.nbytes; i++) {
- if (insn->prefixes.bytes[i] == 0x66)
+ for_each_insn_prefix(insn, i, p) {
+ if (p == 0x66)
return -ENOTSUPP;
}
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index ce7a2bfd1dd8..b7413655353c 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -413,6 +413,19 @@ static void i2c_imx_dma_free(struct imx_i2c_struct *i2c_imx)
dma->chan_using = NULL;
}
+static void i2c_imx_clear_irq(struct imx_i2c_struct *i2c_imx, unsigned int bits)
+{
+ unsigned int temp;
+
+ /*
+ * i2sr_clr_opcode is the value to clear all interrupts. Here we want to
+ * clear only <bits>, so we write ~i2sr_clr_opcode with just <bits>
+ * toggled. This is required because i.MX needs W0C and Vybrid uses W1C.
+ */
+ temp = ~i2c_imx->hwdata->i2sr_clr_opcode ^ bits;
+ imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2SR);
+}
+
static int i2c_imx_bus_busy(struct imx_i2c_struct *i2c_imx, int for_busy)
{
unsigned long orig_jiffies = jiffies;
@@ -425,8 +438,7 @@ static int i2c_imx_bus_busy(struct imx_i2c_struct *i2c_imx, int for_busy)
/* check for arbitration lost */
if (temp & I2SR_IAL) {
- temp &= ~I2SR_IAL;
- imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2SR);
+ i2c_imx_clear_irq(i2c_imx, I2SR_IAL);
return -EAGAIN;
}
@@ -453,6 +465,16 @@ static int i2c_imx_trx_complete(struct imx_i2c_struct *i2c_imx)
dev_dbg(&i2c_imx->adapter.dev, "<%s> Timeout\n", __func__);
return -ETIMEDOUT;
}
+
+ /* check for arbitration lost */
+ if (i2c_imx->i2csr & I2SR_IAL) {
+ dev_dbg(&i2c_imx->adapter.dev, "<%s> Arbitration lost\n", __func__);
+ i2c_imx_clear_irq(i2c_imx, I2SR_IAL);
+
+ i2c_imx->i2csr = 0;
+ return -EAGAIN;
+ }
+
dev_dbg(&i2c_imx->adapter.dev, "<%s> TRX complete\n", __func__);
i2c_imx->i2csr = 0;
return 0;
@@ -595,9 +617,7 @@ static irqreturn_t i2c_imx_isr(int irq, void *dev_id)
if (temp & I2SR_IIF) {
/* save status register */
i2c_imx->i2csr = temp;
- temp &= ~I2SR_IIF;
- temp |= (i2c_imx->hwdata->i2sr_clr_opcode & I2SR_IIF);
- imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2SR);
+ i2c_imx_clear_irq(i2c_imx, I2SR_IIF);
wake_up(&i2c_imx->queue);
return IRQ_HANDLED;
}
diff --git a/drivers/i2c/busses/i2c-qup.c b/drivers/i2c/busses/i2c-qup.c
index 8f6903ec7aec..6dd6a5542ce5 100644
--- a/drivers/i2c/busses/i2c-qup.c
+++ b/drivers/i2c/busses/i2c-qup.c
@@ -846,7 +846,8 @@ static int qup_i2c_bam_do_xfer(struct qup_i2c_dev *qup, struct i2c_msg *msg,
if (ret || qup->bus_err || qup->qup_err) {
reinit_completion(&qup->xfer);
- if (qup_i2c_change_state(qup, QUP_RUN_STATE)) {
+ ret = qup_i2c_change_state(qup, QUP_RUN_STATE);
+ if (ret) {
dev_err(qup->dev, "change to run state timed out");
goto desc_err;
}
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 0e9f248370a3..d95dd2b48cac 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -1458,7 +1458,8 @@ static int __init i8042_setup_aux(void)
if (error)
goto err_free_ports;
- if (aux_enable())
+ error = aux_enable();
+ if (error)
goto err_free_irq;
i8042_aux_irq_registered = true;
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index ac3cac052af9..3caf3b1e8d67 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -255,7 +255,7 @@
#define DTE_IRQ_REMAP_INTCTL_MASK (0x3ULL << 60)
#define DTE_IRQ_TABLE_LEN_MASK (0xfULL << 1)
#define DTE_IRQ_REMAP_INTCTL (2ULL << 60)
-#define DTE_IRQ_TABLE_LEN (8ULL << 1)
+#define DTE_IRQ_TABLE_LEN (9ULL << 1)
#define DTE_IRQ_REMAP_ENABLE 1ULL
#define PAGE_MODE_NONE 0x00
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index 2ea4bb9ce6e1..62eac76be9f6 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -1017,6 +1017,21 @@ static void byt_gpio_disable_free(struct pinctrl_dev *pctl_dev,
pm_runtime_put(&vg->pdev->dev);
}
+static void byt_gpio_direct_irq_check(struct byt_gpio *vg,
+ unsigned int offset)
+{
+ void __iomem *conf_reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG);
+
+ /*
+ * Before making any direction modifications, do a check if gpio is set
+ * for direct IRQ. On Bay Trail, setting GPIO to output does not make
+ * sense, so let's at least inform the caller before they shoot
+ * themselves in the foot.
+ */
+ if (readl(conf_reg) & BYT_DIRECT_IRQ_EN)
+ dev_info_once(&vg->pdev->dev, "Potential Error: Setting GPIO with direct_irq_en to output");
+}
+
static int byt_gpio_set_direction(struct pinctrl_dev *pctl_dev,
struct pinctrl_gpio_range *range,
unsigned int offset,
@@ -1024,7 +1039,6 @@ static int byt_gpio_set_direction(struct pinctrl_dev *pctl_dev,
{
struct byt_gpio *vg = pinctrl_dev_get_drvdata(pctl_dev);
void __iomem *val_reg = byt_gpio_reg(vg, offset, BYT_VAL_REG);
- void __iomem *conf_reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG);
unsigned long flags;
u32 value;
@@ -1035,14 +1049,8 @@ static int byt_gpio_set_direction(struct pinctrl_dev *pctl_dev,
if (input)
value |= BYT_OUTPUT_EN;
else
- /*
- * Before making any direction modifications, do a check if gpio
- * is set for direct IRQ. On baytrail, setting GPIO to output
- * does not make sense, so let's at least warn the caller before
- * they shoot themselves in the foot.
- */
- WARN(readl(conf_reg) & BYT_DIRECT_IRQ_EN,
- "Potential Error: Setting GPIO with direct_irq_en to output");
+ byt_gpio_direct_irq_check(vg, offset);
+
writel(value, val_reg);
raw_spin_unlock_irqrestore(&byt_lock, flags);
@@ -1382,19 +1390,50 @@ static int byt_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
static int byt_gpio_direction_input(struct gpio_chip *chip, unsigned int offset)
{
- return pinctrl_gpio_direction_input(chip->base + offset);
+ struct byt_gpio *vg = gpiochip_get_data(chip);
+ void __iomem *val_reg = byt_gpio_reg(vg, offset, BYT_VAL_REG);
+ unsigned long flags;
+ u32 reg;
+
+ raw_spin_lock_irqsave(&byt_lock, flags);
+
+ reg = readl(val_reg);
+ reg &= ~BYT_DIR_MASK;
+ reg |= BYT_OUTPUT_EN;
+ writel(reg, val_reg);
+
+ raw_spin_unlock_irqrestore(&byt_lock, flags);
+ return 0;
}
+/*
+ * Note despite the temptation this MUST NOT be converted into a call to
+ * pinctrl_gpio_direction_output() + byt_gpio_set() that does not work this
+ * MUST be done as a single BYT_VAL_REG register write.
+ * See the commit message of the commit adding this comment for details.
+ */
static int byt_gpio_direction_output(struct gpio_chip *chip,
unsigned int offset, int value)
{
- int ret = pinctrl_gpio_direction_output(chip->base + offset);
+ struct byt_gpio *vg = gpiochip_get_data(chip);
+ void __iomem *val_reg = byt_gpio_reg(vg, offset, BYT_VAL_REG);
+ unsigned long flags;
+ u32 reg;
- if (ret)
- return ret;
+ raw_spin_lock_irqsave(&byt_lock, flags);
- byt_gpio_set(chip, offset, value);
+ byt_gpio_direct_irq_check(vg, offset);
+ reg = readl(val_reg);
+ reg &= ~BYT_DIR_MASK;
+ if (value)
+ reg |= BYT_LEVEL;
+ else
+ reg &= ~BYT_LEVEL;
+
+ writel(reg, val_reg);
+
+ raw_spin_unlock_irqrestore(&byt_lock, flags);
return 0;
}
diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
index 7c86a8ee03aa..11adc2c13a74 100644
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -1219,7 +1219,7 @@ int bcm_qspi_probe(struct platform_device *pdev,
if (!of_match_node(bcm_qspi_of_match, dev->of_node))
return -ENODEV;
- master = spi_alloc_master(dev, sizeof(struct bcm_qspi));
+ master = devm_spi_alloc_master(dev, sizeof(struct bcm_qspi));
if (!master) {
dev_err(dev, "error allocating spi_master\n");
return -ENOMEM;
@@ -1253,21 +1253,17 @@ int bcm_qspi_probe(struct platform_device *pdev,
if (res) {
qspi->base[MSPI] = devm_ioremap_resource(dev, res);
- if (IS_ERR(qspi->base[MSPI])) {
- ret = PTR_ERR(qspi->base[MSPI]);
- goto qspi_resource_err;
- }
+ if (IS_ERR(qspi->base[MSPI]))
+ return PTR_ERR(qspi->base[MSPI]);
} else {
- goto qspi_resource_err;
+ return 0;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "bspi");
if (res) {
qspi->base[BSPI] = devm_ioremap_resource(dev, res);
- if (IS_ERR(qspi->base[BSPI])) {
- ret = PTR_ERR(qspi->base[BSPI]);
- goto qspi_resource_err;
- }
+ if (IS_ERR(qspi->base[BSPI]))
+ return PTR_ERR(qspi->base[BSPI]);
qspi->bspi_mode = true;
} else {
qspi->bspi_mode = false;
@@ -1278,18 +1274,14 @@ int bcm_qspi_probe(struct platform_device *pdev,
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cs_reg");
if (res) {
qspi->base[CHIP_SELECT] = devm_ioremap_resource(dev, res);
- if (IS_ERR(qspi->base[CHIP_SELECT])) {
- ret = PTR_ERR(qspi->base[CHIP_SELECT]);
- goto qspi_resource_err;
- }
+ if (IS_ERR(qspi->base[CHIP_SELECT]))
+ return PTR_ERR(qspi->base[CHIP_SELECT]);
}
qspi->dev_ids = kcalloc(num_irqs, sizeof(struct bcm_qspi_dev_id),
GFP_KERNEL);
- if (!qspi->dev_ids) {
- ret = -ENOMEM;
- goto qspi_resource_err;
- }
+ if (!qspi->dev_ids)
+ return -ENOMEM;
for (val = 0; val < num_irqs; val++) {
irq = -1;
@@ -1365,7 +1357,7 @@ int bcm_qspi_probe(struct platform_device *pdev,
qspi->xfer_mode.addrlen = -1;
qspi->xfer_mode.hp = -1;
- ret = devm_spi_register_master(&pdev->dev, master);
+ ret = spi_register_master(master);
if (ret < 0) {
dev_err(dev, "can't register master\n");
goto qspi_reg_err;
@@ -1378,8 +1370,6 @@ int bcm_qspi_probe(struct platform_device *pdev,
clk_disable_unprepare(qspi->clk);
qspi_probe_err:
kfree(qspi->dev_ids);
-qspi_resource_err:
- spi_master_put(master);
return ret;
}
/* probe function to be called by SoC specific platform driver probe */
@@ -1389,10 +1379,10 @@ int bcm_qspi_remove(struct platform_device *pdev)
{
struct bcm_qspi *qspi = platform_get_drvdata(pdev);
+ spi_unregister_master(qspi->master);
bcm_qspi_hw_uninit(qspi);
clk_disable_unprepare(qspi->clk);
kfree(qspi->dev_ids);
- spi_unregister_master(qspi->master);
return 0;
}
diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index df6abc75bc16..6824beae18e4 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -737,7 +737,7 @@ static int bcm2835_spi_probe(struct platform_device *pdev)
struct resource *res;
int err;
- master = spi_alloc_master(&pdev->dev, sizeof(*bs));
+ master = devm_spi_alloc_master(&pdev->dev, sizeof(*bs));
if (!master) {
dev_err(&pdev->dev, "spi_alloc_master() failed\n");
return -ENOMEM;
@@ -759,23 +759,20 @@ static int bcm2835_spi_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
bs->regs = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(bs->regs)) {
- err = PTR_ERR(bs->regs);
- goto out_master_put;
- }
+ if (IS_ERR(bs->regs))
+ return PTR_ERR(bs->regs);
bs->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(bs->clk)) {
err = PTR_ERR(bs->clk);
dev_err(&pdev->dev, "could not get clk: %d\n", err);
- goto out_master_put;
+ return err;
}
bs->irq = platform_get_irq(pdev, 0);
if (bs->irq <= 0) {
dev_err(&pdev->dev, "could not get IRQ: %d\n", bs->irq);
- err = bs->irq ? bs->irq : -ENODEV;
- goto out_master_put;
+ return bs->irq ? bs->irq : -ENODEV;
}
clk_prepare_enable(bs->clk);
@@ -790,21 +787,20 @@ static int bcm2835_spi_probe(struct platform_device *pdev)
dev_name(&pdev->dev), master);
if (err) {
dev_err(&pdev->dev, "could not request IRQ: %d\n", err);
- goto out_clk_disable;
+ goto out_dma_release;
}
err = spi_register_master(master);
if (err) {
dev_err(&pdev->dev, "could not register SPI master: %d\n", err);
- goto out_clk_disable;
+ goto out_dma_release;
}
return 0;
-out_clk_disable:
+out_dma_release:
+ bcm2835_dma_release(master);
clk_disable_unprepare(bs->clk);
-out_master_put:
- spi_master_put(master);
return err;
}
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index acc8eeed73f0..ca9970a63fdf 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -2043,6 +2043,49 @@ struct spi_controller *__spi_alloc_controller(struct device *dev,
}
EXPORT_SYMBOL_GPL(__spi_alloc_controller);
+static void devm_spi_release_controller(struct device *dev, void *ctlr)
+{
+ spi_controller_put(*(struct spi_controller **)ctlr);
+}
+
+/**
+ * __devm_spi_alloc_controller - resource-managed __spi_alloc_controller()
+ * @dev: physical device of SPI controller
+ * @size: how much zeroed driver-private data to allocate
+ * @slave: whether to allocate an SPI master (false) or SPI slave (true)
+ * Context: can sleep
+ *
+ * Allocate an SPI controller and automatically release a reference on it
+ * when @dev is unbound from its driver. Drivers are thus relieved from
+ * having to call spi_controller_put().
+ *
+ * The arguments to this function are identical to __spi_alloc_controller().
+ *
+ * Return: the SPI controller structure on success, else NULL.
+ */
+struct spi_controller *__devm_spi_alloc_controller(struct device *dev,
+ unsigned int size,
+ bool slave)
+{
+ struct spi_controller **ptr, *ctlr;
+
+ ptr = devres_alloc(devm_spi_release_controller, sizeof(*ptr),
+ GFP_KERNEL);
+ if (!ptr)
+ return NULL;
+
+ ctlr = __spi_alloc_controller(dev, size, slave);
+ if (ctlr) {
+ *ptr = ctlr;
+ devres_add(dev, ptr);
+ } else {
+ devres_free(ptr);
+ }
+
+ return ctlr;
+}
+EXPORT_SYMBOL_GPL(__devm_spi_alloc_controller);
+
#ifdef CONFIG_OF
static int of_spi_register_master(struct spi_controller *ctlr)
{
@@ -2261,6 +2304,11 @@ int devm_spi_register_controller(struct device *dev,
}
EXPORT_SYMBOL_GPL(devm_spi_register_controller);
+static int devm_spi_match_controller(struct device *dev, void *res, void *ctlr)
+{
+ return *(struct spi_controller **)res == ctlr;
+}
+
static int __unregister(struct device *dev, void *null)
{
spi_unregister_device(to_spi_device(dev));
@@ -2300,7 +2348,15 @@ void spi_unregister_controller(struct spi_controller *ctlr)
list_del(&ctlr->list);
mutex_unlock(&board_lock);
- device_unregister(&ctlr->dev);
+ device_del(&ctlr->dev);
+
+ /* Release the last reference on the controller if its driver
+ * has not yet been converted to devm_spi_alloc_master/slave().
+ */
+ if (!devres_find(ctlr->dev.parent, devm_spi_release_controller,
+ devm_spi_match_controller, ctlr))
+ put_device(&ctlr->dev);
+
/* free bus id */
mutex_lock(&board_lock);
if (found == ctlr)
diff --git a/drivers/staging/speakup/spk_ttyio.c b/drivers/staging/speakup/spk_ttyio.c
index fe1bb0284fe3..5aae06bc6fe3 100644
--- a/drivers/staging/speakup/spk_ttyio.c
+++ b/drivers/staging/speakup/spk_ttyio.c
@@ -46,28 +46,20 @@ static int spk_ttyio_ldisc_open(struct tty_struct *tty)
{
struct spk_ldisc_data *ldisc_data;
+ if (tty != speakup_tty)
+ /* Somebody tried to use this line discipline outside speakup */
+ return -ENODEV;
+
if (tty->ops->write == NULL)
return -EOPNOTSUPP;
- mutex_lock(&speakup_tty_mutex);
- if (speakup_tty) {
- mutex_unlock(&speakup_tty_mutex);
- return -EBUSY;
- }
- speakup_tty = tty;
-
ldisc_data = kmalloc(sizeof(struct spk_ldisc_data), GFP_KERNEL);
- if (!ldisc_data) {
- speakup_tty = NULL;
- mutex_unlock(&speakup_tty_mutex);
- pr_err("speakup: Failed to allocate ldisc_data.\n");
+ if (!ldisc_data)
return -ENOMEM;
- }
sema_init(&ldisc_data->sem, 0);
ldisc_data->buf_free = true;
- speakup_tty->disc_data = ldisc_data;
- mutex_unlock(&speakup_tty_mutex);
+ tty->disc_data = ldisc_data;
return 0;
}
@@ -184,9 +176,25 @@ static int spk_ttyio_initialise_ldisc(struct spk_synth *synth)
tty_unlock(tty);
+ mutex_lock(&speakup_tty_mutex);
+ speakup_tty = tty;
ret = tty_set_ldisc(tty, N_SPEAKUP);
if (ret)
- pr_err("speakup: Failed to set N_SPEAKUP on tty\n");
+ speakup_tty = NULL;
+ mutex_unlock(&speakup_tty_mutex);
+
+ if (!ret)
+ /* Success */
+ return 0;
+
+ pr_err("speakup: Failed to set N_SPEAKUP on tty\n");
+
+ tty_lock(tty);
+ if (tty->ops->close)
+ tty->ops->close(tty, NULL);
+ tty_unlock(tty);
+
+ tty_kclose(tty);
return ret;
}
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index dba4f53a7fff..d7e56de19c58 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2739,10 +2739,14 @@ void __do_SAK(struct tty_struct *tty)
struct task_struct *g, *p;
struct pid *session;
int i;
+ unsigned long flags;
if (!tty)
return;
- session = tty->session;
+
+ spin_lock_irqsave(&tty->ctrl_lock, flags);
+ session = get_pid(tty->session);
+ spin_unlock_irqrestore(&tty->ctrl_lock, flags);
tty_ldisc_flush(tty);
@@ -2774,6 +2778,7 @@ void __do_SAK(struct tty_struct *tty)
task_unlock(p);
} while_each_thread(g, p);
read_unlock(&tasklist_lock);
+ put_pid(session);
#endif
}
diff --git a/drivers/tty/tty_jobctrl.c b/drivers/tty/tty_jobctrl.c
index e7032309ee87..b71e61e79c5a 100644
--- a/drivers/tty/tty_jobctrl.c
+++ b/drivers/tty/tty_jobctrl.c
@@ -102,8 +102,8 @@ static void __proc_set_tty(struct tty_struct *tty)
put_pid(tty->session);
put_pid(tty->pgrp);
tty->pgrp = get_pid(task_pgrp(current));
- spin_unlock_irqrestore(&tty->ctrl_lock, flags);
tty->session = get_pid(task_session(current));
+ spin_unlock_irqrestore(&tty->ctrl_lock, flags);
if (current->signal->tty) {
tty_debug(tty, "current tty %s not NULL!!\n",
current->signal->tty->name);
@@ -292,20 +292,23 @@ void disassociate_ctty(int on_exit)
spin_lock_irq(¤t->sighand->siglock);
put_pid(current->signal->tty_old_pgrp);
current->signal->tty_old_pgrp = NULL;
-
tty = tty_kref_get(current->signal->tty);
+ spin_unlock_irq(¤t->sighand->siglock);
+
if (tty) {
unsigned long flags;
+
+ tty_lock(tty);
spin_lock_irqsave(&tty->ctrl_lock, flags);
put_pid(tty->session);
put_pid(tty->pgrp);
tty->session = NULL;
tty->pgrp = NULL;
spin_unlock_irqrestore(&tty->ctrl_lock, flags);
+ tty_unlock(tty);
tty_kref_put(tty);
}
- spin_unlock_irq(¤t->sighand->siglock);
/* Now clear signal->tty under the lock */
read_lock(&tasklist_lock);
session_clear_tty(task_session(current));
@@ -476,14 +479,19 @@ static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t
return -ENOTTY;
if (retval)
return retval;
- if (!current->signal->tty ||
- (current->signal->tty != real_tty) ||
- (real_tty->session != task_session(current)))
- return -ENOTTY;
+
if (get_user(pgrp_nr, p))
return -EFAULT;
if (pgrp_nr < 0)
return -EINVAL;
+
+ spin_lock_irq(&real_tty->ctrl_lock);
+ if (!current->signal->tty ||
+ (current->signal->tty != real_tty) ||
+ (real_tty->session != task_session(current))) {
+ retval = -ENOTTY;
+ goto out_unlock_ctrl;
+ }
rcu_read_lock();
pgrp = find_vpid(pgrp_nr);
retval = -ESRCH;
@@ -493,12 +501,12 @@ static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t
if (session_of_pgrp(pgrp) != task_session(current))
goto out_unlock;
retval = 0;
- spin_lock_irq(&tty->ctrl_lock);
put_pid(real_tty->pgrp);
real_tty->pgrp = get_pid(pgrp);
- spin_unlock_irq(&tty->ctrl_lock);
out_unlock:
rcu_read_unlock();
+out_unlock_ctrl:
+ spin_unlock_irq(&real_tty->ctrl_lock);
return retval;
}
@@ -510,20 +518,30 @@ static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t
*
* Obtain the session id of the tty. If there is no session
* return an error.
- *
- * Locking: none. Reference to current->signal->tty is safe.
*/
static int tiocgsid(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p)
{
+ unsigned long flags;
+ pid_t sid;
+
/*
* (tty == real_tty) is a cheap way of
* testing if the tty is NOT a master pty.
*/
if (tty == real_tty && current->signal->tty != real_tty)
return -ENOTTY;
+
+ spin_lock_irqsave(&real_tty->ctrl_lock, flags);
if (!real_tty->session)
- return -ENOTTY;
- return put_user(pid_vnr(real_tty->session), p);
+ goto err;
+ sid = pid_vnr(real_tty->session);
+ spin_unlock_irqrestore(&real_tty->ctrl_lock, flags);
+
+ return put_user(sid, p);
+
+err:
+ spin_unlock_irqrestore(&real_tty->ctrl_lock, flags);
+ return -ENOTTY;
}
/*
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index 2ff7c21bbda5..2f98161d062e 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -1244,7 +1244,7 @@ static long ffs_epfile_ioctl(struct file *file, unsigned code,
case FUNCTIONFS_ENDPOINT_DESC:
{
int desc_idx;
- struct usb_endpoint_descriptor *desc;
+ struct usb_endpoint_descriptor desc1, *desc;
switch (epfile->ffs->gadget->speed) {
case USB_SPEED_SUPER:
@@ -1256,10 +1256,12 @@ static long ffs_epfile_ioctl(struct file *file, unsigned code,
default:
desc_idx = 0;
}
+
desc = epfile->ep->descs[desc_idx];
+ memcpy(&desc1, desc, desc->bLength);
spin_unlock_irq(&epfile->ffs->eps_lock);
- ret = copy_to_user((void *)value, desc, desc->bLength);
+ ret = copy_to_user((void *)value, &desc1, desc1.bLength);
if (ret)
ret = -EFAULT;
return ret;
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index d45a3f4e752c..389b24b84ba4 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -83,10 +83,11 @@
#define CH341_LCR_CS5 0x00
static const struct usb_device_id id_table[] = {
- { USB_DEVICE(0x4348, 0x5523) },
+ { USB_DEVICE(0x1a86, 0x5512) },
+ { USB_DEVICE(0x1a86, 0x5523) },
{ USB_DEVICE(0x1a86, 0x7522) },
{ USB_DEVICE(0x1a86, 0x7523) },
- { USB_DEVICE(0x1a86, 0x5523) },
+ { USB_DEVICE(0x4348, 0x5523) },
{ },
};
MODULE_DEVICE_TABLE(usb, id_table);
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index 595415e59d5d..fd02b19129fc 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -281,12 +281,12 @@ static int klsi_105_open(struct tty_struct *tty, struct usb_serial_port *port)
priv->cfg.unknown2 = cfg->unknown2;
spin_unlock_irqrestore(&priv->lock, flags);
+ kfree(cfg);
+
/* READ_ON and urb submission */
rc = usb_serial_generic_open(tty, port);
- if (rc) {
- retval = rc;
- goto err_free_cfg;
- }
+ if (rc)
+ return rc;
rc = usb_control_msg(port->serial->dev,
usb_sndctrlpipe(port->serial->dev, 0),
@@ -329,8 +329,6 @@ static int klsi_105_open(struct tty_struct *tty, struct usb_serial_port *port)
KLSI_TIMEOUT);
err_generic_close:
usb_serial_generic_close(port);
-err_free_cfg:
- kfree(cfg);
return retval;
}
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 49e6aa9aec54..0a4b0c3839b5 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -422,6 +422,7 @@ static void option_instat_callback(struct urb *urb);
#define CINTERION_PRODUCT_PH8 0x0053
#define CINTERION_PRODUCT_AHXX 0x0055
#define CINTERION_PRODUCT_PLXX 0x0060
+#define CINTERION_PRODUCT_EXS82 0x006c
#define CINTERION_PRODUCT_PH8_2RMNET 0x0082
#define CINTERION_PRODUCT_PH8_AUDIO 0x0083
#define CINTERION_PRODUCT_AHXX_2RMNET 0x0084
@@ -1108,9 +1109,8 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG95, 0xff, 0xff, 0xff),
.driver_info = NUMEP2 },
{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG95, 0xff, 0, 0) },
- { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96, 0xff, 0xff, 0xff),
- .driver_info = NUMEP2 },
- { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96, 0xff, 0, 0) },
+ { USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96),
+ .driver_info = RSVD(4) },
{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0xff, 0xff),
.driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) | NUMEP2 },
{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0, 0) },
@@ -1905,6 +1905,7 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX_AUDIO, 0xff) },
{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_CLS8, 0xff),
.driver_info = RSVD(0) | RSVD(4) },
+ { USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EXS82, 0xff) },
{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) },
{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDMNET) },
{ USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC25_MDM) },
@@ -2048,12 +2049,13 @@ static const struct usb_device_id option_ids[] = {
.driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
{ USB_DEVICE(0x0489, 0xe0b5), /* Foxconn T77W968 ESIM */
.driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
- { USB_DEVICE(0x1508, 0x1001), /* Fibocom NL668 */
+ { USB_DEVICE(0x1508, 0x1001), /* Fibocom NL668 (IOT version) */
.driver_info = RSVD(4) | RSVD(5) | RSVD(6) },
{ USB_DEVICE(0x2cb7, 0x0104), /* Fibocom NL678 series */
.driver_info = RSVD(4) | RSVD(5) },
{ USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x0105, 0xff), /* Fibocom NL678 series */
.driver_info = RSVD(6) },
+ { USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x01a0, 0xff) }, /* Fibocom NL668-AM/NL652-EU (laptop MBIM) */
{ USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1404, 0xff) }, /* GosunCn GM500 RNDIS */
{ USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1405, 0xff) }, /* GosunCn GM500 MBIM */
{ USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1406, 0xff) }, /* GosunCn GM500 ECM/NCM */
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 64e52374ecc2..73be08ea135f 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -756,6 +756,8 @@ static void clean_demultiplex_info(struct TCP_Server_Info *server)
list_del_init(&server->tcp_ses_list);
spin_unlock(&cifs_tcp_ses_lock);
+ cancel_delayed_work_sync(&server->echo);
+
spin_lock(&GlobalMid_Lock);
server->tcpStatus = CifsExiting;
spin_unlock(&GlobalMid_Lock);
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index c4eb6a5fcea9..87656030ec7d 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -990,6 +990,10 @@ static int gfs2_ri_update(struct gfs2_inode *ip)
if (error < 0)
return error;
+ if (RB_EMPTY_ROOT(&sdp->sd_rindex_tree)) {
+ fs_err(sdp, "no resource groups found in the file system.\n");
+ return -ENOENT;
+ }
set_rgrp_preferences(sdp);
sdp->sd_rindex_uptodate = 1;
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 87b8c20d5b27..af4f2a7f8e9a 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -30,6 +30,8 @@
#define VLAN_ETH_DATA_LEN 1500 /* Max. octets in payload */
#define VLAN_ETH_FRAME_LEN 1518 /* Max. octets in frame sans FCS */
+#define VLAN_MAX_DEPTH 8 /* Max. number of nested VLAN tags parsed */
+
/*
* struct vlan_hdr - vlan header
* @h_vlan_TCI: priority and VLAN ID
@@ -534,10 +536,10 @@ static inline int vlan_get_tag(const struct sk_buff *skb, u16 *vlan_tci)
* Returns the EtherType of the packet, regardless of whether it is
* vlan encapsulated (normal or hardware accelerated) or not.
*/
-static inline __be16 __vlan_get_protocol(struct sk_buff *skb, __be16 type,
+static inline __be16 __vlan_get_protocol(const struct sk_buff *skb, __be16 type,
int *depth)
{
- unsigned int vlan_depth = skb->mac_len;
+ unsigned int vlan_depth = skb->mac_len, parse_depth = VLAN_MAX_DEPTH;
/* if type is 802.1Q/AD then the header should already be
* present at mac_len - VLAN_HLEN (if mac_len > 0), or at
@@ -552,13 +554,12 @@ static inline __be16 __vlan_get_protocol(struct sk_buff *skb, __be16 type,
vlan_depth = ETH_HLEN;
}
do {
- struct vlan_hdr *vh;
+ struct vlan_hdr vhdr, *vh;
- if (unlikely(!pskb_may_pull(skb,
- vlan_depth + VLAN_HLEN)))
+ vh = skb_header_pointer(skb, vlan_depth, sizeof(vhdr), &vhdr);
+ if (unlikely(!vh || !--parse_depth))
return 0;
- vh = (struct vlan_hdr *)(skb->data + vlan_depth);
type = vh->h_vlan_encapsulated_proto;
vlan_depth += VLAN_HLEN;
} while (eth_type_vlan(type));
@@ -577,11 +578,25 @@ static inline __be16 __vlan_get_protocol(struct sk_buff *skb, __be16 type,
* Returns the EtherType of the packet, regardless of whether it is
* vlan encapsulated (normal or hardware accelerated) or not.
*/
-static inline __be16 vlan_get_protocol(struct sk_buff *skb)
+static inline __be16 vlan_get_protocol(const struct sk_buff *skb)
{
return __vlan_get_protocol(skb, skb->protocol, NULL);
}
+/* A getter for the SKB protocol field which will handle VLAN tags consistently
+ * whether VLAN acceleration is enabled or not.
+ */
+static inline __be16 skb_protocol(const struct sk_buff *skb, bool skip_vlan)
+{
+ if (!skip_vlan)
+ /* VLAN acceleration strips the VLAN header from the skb and
+ * moves it to skb->vlan_proto
+ */
+ return skb_vlan_tag_present(skb) ? skb->vlan_proto : skb->protocol;
+
+ return vlan_get_protocol(skb);
+}
+
static inline void vlan_set_encap_proto(struct sk_buff *skb,
struct vlan_hdr *vhdr)
{
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 7b2170bfd6e7..715bd276a041 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -638,6 +638,25 @@ static inline struct spi_controller *spi_alloc_slave(struct device *host,
return __spi_alloc_controller(host, size, true);
}
+struct spi_controller *__devm_spi_alloc_controller(struct device *dev,
+ unsigned int size,
+ bool slave);
+
+static inline struct spi_controller *devm_spi_alloc_master(struct device *dev,
+ unsigned int size)
+{
+ return __devm_spi_alloc_controller(dev, size, false);
+}
+
+static inline struct spi_controller *devm_spi_alloc_slave(struct device *dev,
+ unsigned int size)
+{
+ if (!IS_ENABLED(CONFIG_SPI_SLAVE))
+ return NULL;
+
+ return __devm_spi_alloc_controller(dev, size, true);
+}
+
extern int spi_register_controller(struct spi_controller *ctlr);
extern int devm_spi_register_controller(struct device *dev,
struct spi_controller *ctlr);
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 2f1b61d8b151..641c93acc557 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -305,6 +305,10 @@ struct tty_struct {
struct termiox *termiox; /* May be NULL for unsupported */
char name[64];
struct pid *pgrp; /* Protected by ctrl lock */
+ /*
+ * Writes protected by both ctrl lock and legacy mutex, readers must use
+ * at least one of them.
+ */
struct pid *session;
unsigned long flags;
int count;
diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h
index d30e4c869438..09ed8a48b454 100644
--- a/include/net/inet_ecn.h
+++ b/include/net/inet_ecn.h
@@ -4,6 +4,7 @@
#include <linux/ip.h>
#include <linux/skbuff.h>
+#include <linux/if_vlan.h>
#include <net/inet_sock.h>
#include <net/dsfield.h>
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index bb242da3724b..5b200b879765 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1715,6 +1715,8 @@ static bool test_rec_ops_needs_regs(struct dyn_ftrace *rec)
static struct ftrace_ops *
ftrace_find_tramp_ops_any(struct dyn_ftrace *rec);
static struct ftrace_ops *
+ftrace_find_tramp_ops_any_other(struct dyn_ftrace *rec, struct ftrace_ops *op_exclude);
+static struct ftrace_ops *
ftrace_find_tramp_ops_next(struct dyn_ftrace *rec, struct ftrace_ops *ops);
static bool __ftrace_hash_rec_update(struct ftrace_ops *ops,
@@ -1852,7 +1854,7 @@ static bool __ftrace_hash_rec_update(struct ftrace_ops *ops,
* to it.
*/
if (ftrace_rec_count(rec) == 1 &&
- ftrace_find_tramp_ops_any(rec))
+ ftrace_find_tramp_ops_any_other(rec, ops))
rec->flags |= FTRACE_FL_TRAMP;
else
rec->flags &= ~FTRACE_FL_TRAMP;
@@ -2280,6 +2282,24 @@ ftrace_find_tramp_ops_any(struct dyn_ftrace *rec)
return NULL;
}
+static struct ftrace_ops *
+ftrace_find_tramp_ops_any_other(struct dyn_ftrace *rec, struct ftrace_ops *op_exclude)
+{
+ struct ftrace_ops *op;
+ unsigned long ip = rec->ip;
+
+ do_for_each_ftrace_op(op, ftrace_ops_list) {
+
+ if (op == op_exclude || !op->trampoline)
+ continue;
+
+ if (hash_contains_ip(ip, op->func_hash))
+ return op;
+ } while_for_each_ftrace_op(op);
+
+ return NULL;
+}
+
static struct ftrace_ops *
ftrace_find_tramp_ops_next(struct dyn_ftrace *rec,
struct ftrace_ops *op)
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 1339ee556743..c0dbc683322f 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2404,7 +2404,7 @@ void trace_buffer_unlock_commit_regs(struct trace_array *tr,
* two. They are that meaningful.
*/
ftrace_trace_stack(tr, buffer, flags, regs ? 0 : 4, pc, regs);
- ftrace_trace_userstack(buffer, flags, pc);
+ ftrace_trace_userstack(tr, buffer, flags, pc);
}
/*
@@ -2734,14 +2734,15 @@ void trace_dump_stack(int skip)
static DEFINE_PER_CPU(int, user_stack_count);
void
-ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags, int pc)
+ftrace_trace_userstack(struct trace_array *tr,
+ struct ring_buffer *buffer, unsigned long flags, int pc)
{
struct trace_event_call *call = &event_user_stack;
struct ring_buffer_event *event;
struct userstack_entry *entry;
struct stack_trace trace;
- if (!(global_trace.trace_flags & TRACE_ITER_USERSTACKTRACE))
+ if (!(tr->trace_flags & TRACE_ITER_USERSTACKTRACE))
return;
/*
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 01506162522f..5097e9406e78 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -739,13 +739,15 @@ void update_max_tr_single(struct trace_array *tr,
#endif /* CONFIG_TRACER_MAX_TRACE */
#ifdef CONFIG_STACKTRACE
-void ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags,
+void ftrace_trace_userstack(struct trace_array *tr,
+ struct ring_buffer *buffer, unsigned long flags,
int pc);
void __trace_stack(struct trace_array *tr, unsigned long flags, int skip,
int pc);
#else
-static inline void ftrace_trace_userstack(struct ring_buffer *buffer,
+static inline void ftrace_trace_userstack(struct trace_array *tr,
+ struct ring_buffer *buffer,
unsigned long flags, int pc)
{
}
diff --git a/mm/swapfile.c b/mm/swapfile.c
index f79f0d938274..2aa7b59077b3 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2828,6 +2828,7 @@ late_initcall(max_swapfiles_check);
static struct swap_info_struct *alloc_swap_info(void)
{
struct swap_info_struct *p;
+ struct swap_info_struct *defer = NULL;
unsigned int type;
int i;
int size = sizeof(*p) + nr_node_ids * sizeof(struct plist_node);
@@ -2857,7 +2858,7 @@ static struct swap_info_struct *alloc_swap_info(void)
smp_wmb();
nr_swapfiles++;
} else {
- kvfree(p);
+ defer = p;
p = swap_info[type];
/*
* Do not memset this entry: a racing procfs swap_next()
@@ -2870,6 +2871,7 @@ static struct swap_info_struct *alloc_swap_info(void)
plist_node_init(&p->avail_lists[i], 0);
p->flags = SWP_USED;
spin_unlock(&swap_lock);
+ kvfree(defer);
spin_lock_init(&p->lock);
spin_lock_init(&p->cont_lock);
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 9dee657ce9e2..14881fe80a21 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -1374,16 +1374,20 @@ static int try_assign_dacs(struct hda_codec *codec, int num_outs,
struct nid_path *path;
hda_nid_t pin = pins[i];
- path = snd_hda_get_path_from_idx(codec, path_idx[i]);
- if (path) {
- badness += assign_out_path_ctls(codec, path);
- continue;
+ if (!spec->obey_preferred_dacs) {
+ path = snd_hda_get_path_from_idx(codec, path_idx[i]);
+ if (path) {
+ badness += assign_out_path_ctls(codec, path);
+ continue;
+ }
}
dacs[i] = get_preferred_dac(codec, pin);
if (dacs[i]) {
if (is_dac_already_used(codec, dacs[i]))
badness += bad->shared_primary;
+ } else if (spec->obey_preferred_dacs) {
+ badness += BAD_NO_PRIMARY_DAC;
}
if (!dacs[i])
diff --git a/sound/pci/hda/hda_generic.h b/sound/pci/hda/hda_generic.h
index 17a6bff8e94e..b94e69c60e38 100644
--- a/sound/pci/hda/hda_generic.h
+++ b/sound/pci/hda/hda_generic.h
@@ -230,6 +230,7 @@ struct hda_gen_spec {
unsigned int power_down_unused:1; /* power down unused widgets */
unsigned int dac_min_mute:1; /* minimal = mute for DACs */
unsigned int suppress_vmaster:1; /* don't create vmaster kctls */
+ unsigned int obey_preferred_dacs:1; /* obey preferred_dacs assignment */
/* other internal flags */
unsigned int no_analog:1; /* digital I/O only */
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index c27623052264..331a62b85987 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -392,6 +392,7 @@ static void alc_fill_eapd_coef(struct hda_codec *codec)
alc_update_coef_idx(codec, 0x7, 1<<5, 0);
break;
case 0x10ec0892:
+ case 0x10ec0897:
alc_update_coef_idx(codec, 0x7, 1<<5, 0);
break;
case 0x10ec0899:
@@ -8443,6 +8444,7 @@ static const struct hda_device_id snd_hda_id_realtek[] = {
HDA_CODEC_ENTRY(0x10ec0888, "ALC888", patch_alc882),
HDA_CODEC_ENTRY(0x10ec0889, "ALC889", patch_alc882),
HDA_CODEC_ENTRY(0x10ec0892, "ALC892", patch_alc662),
+ HDA_CODEC_ENTRY(0x10ec0897, "ALC897", patch_alc662),
HDA_CODEC_ENTRY(0x10ec0899, "ALC898", patch_alc882),
HDA_CODEC_ENTRY(0x10ec0900, "ALC1150", patch_alc882),
HDA_CODEC_ENTRY(0x10ec0b00, "ALCS1200A", patch_alc882),
diff --git a/tools/objtool/arch/x86/include/asm/insn.h b/tools/objtool/arch/x86/include/asm/insn.h
index c2c01f84df75..e9f21f836dfb 100644
--- a/tools/objtool/arch/x86/include/asm/insn.h
+++ b/tools/objtool/arch/x86/include/asm/insn.h
@@ -208,6 +208,21 @@ static inline int insn_offset_immediate(struct insn *insn)
return insn_offset_displacement(insn) + insn->displacement.nbytes;
}
+/**
+ * for_each_insn_prefix() -- Iterate prefixes in the instruction
+ * @insn: Pointer to struct insn.
+ * @idx: Index storage.
+ * @prefix: Prefix byte.
+ *
+ * Iterate prefix bytes of given @insn. Each prefix byte is stored in @prefix
+ * and the index is stored in @idx (note that this @idx is just for a cursor,
+ * do not change it.)
+ * Since prefixes.nbytes can be bigger than 4 if some prefixes
+ * are repeated, it cannot be used for looping over the prefixes.
+ */
+#define for_each_insn_prefix(insn, idx, prefix) \
+ for (idx = 0; idx < ARRAY_SIZE(insn->prefixes.bytes) && (prefix = insn->prefixes.bytes[idx]) != 0; idx++)
+
#define POP_SS_OPCODE 0x1f
#define MOV_SREG_OPCODE 0x8e
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