Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Both conflict were simple overlapping changes.
In the kaweth case, Eric Dumazet's skb_cow() bug fix overlapped the
conversion of the driver in net-next to use in-netdev stats.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index fcd4ce6..1c2b846 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -200,6 +200,7 @@ static int acpi_power_get_list_state(struct list_head *list, int *state)
return -EINVAL;
/* The state of the list is 'on' IFF all resources are 'on'. */
+ cur_state = 0;
list_for_each_entry(entry, list, node) {
struct acpi_power_resource *resource = entry->resource;
acpi_handle handle = resource->device.handle;
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index f96ab71..1d1dc11 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -3969,7 +3969,7 @@ static int mtip_block_initialize(struct driver_data *dd)
dd->tags.reserved_tags = 1;
dd->tags.cmd_size = sizeof(struct mtip_cmd);
dd->tags.numa_node = dd->numa_node;
- dd->tags.flags = BLK_MQ_F_SHOULD_MERGE;
+ dd->tags.flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_NO_SCHED;
dd->tags.driver_data = dd;
dd->tags.timeout = MTIP_NCQ_CMD_TIMEOUT_MS;
diff --git a/drivers/clk/clk-stm32f4.c b/drivers/clk/clk-stm32f4.c
index ab609a7..cf9449b3 100644
--- a/drivers/clk/clk-stm32f4.c
+++ b/drivers/clk/clk-stm32f4.c
@@ -429,6 +429,13 @@ static const struct clk_div_table pll_divp_table[] = {
{ 0, 2 }, { 1, 4 }, { 2, 6 }, { 3, 8 }, { 0 }
};
+static const struct clk_div_table pll_divq_table[] = {
+ { 2, 2 }, { 3, 3 }, { 4, 4 }, { 5, 5 }, { 6, 6 }, { 7, 7 },
+ { 8, 8 }, { 9, 9 }, { 10, 10 }, { 11, 11 }, { 12, 12 }, { 13, 13 },
+ { 14, 14 }, { 15, 15 },
+ { 0 }
+};
+
static const struct clk_div_table pll_divr_table[] = {
{ 2, 2 }, { 3, 3 }, { 4, 4 }, { 5, 5 }, { 6, 6 }, { 7, 7 }, { 0 }
};
@@ -496,9 +503,9 @@ struct stm32f4_div_data {
#define MAX_PLL_DIV 3
static const struct stm32f4_div_data div_data[MAX_PLL_DIV] = {
- { 16, 2, 0, pll_divp_table },
- { 24, 4, CLK_DIVIDER_ONE_BASED, NULL },
- { 28, 3, 0, pll_divr_table },
+ { 16, 2, 0, pll_divp_table },
+ { 24, 4, 0, pll_divq_table },
+ { 28, 3, 0, pll_divr_table },
};
struct stm32f4_pll_data {
diff --git a/drivers/clk/sunxi-ng/Kconfig b/drivers/clk/sunxi-ng/Kconfig
index 72109d2..1c23573 100644
--- a/drivers/clk/sunxi-ng/Kconfig
+++ b/drivers/clk/sunxi-ng/Kconfig
@@ -1,6 +1,7 @@
config SUNXI_CCU
bool "Clock support for Allwinner SoCs"
depends on ARCH_SUNXI || COMPILE_TEST
+ select RESET_CONTROLLER
default ARCH_SUNXI
if SUNXI_CCU
@@ -135,6 +136,7 @@
config SUN9I_A80_CCU
bool "Support for the Allwinner A80 CCU"
select SUNXI_CCU_DIV
+ select SUNXI_CCU_MULT
select SUNXI_CCU_GATE
select SUNXI_CCU_NKMP
select SUNXI_CCU_NM
diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-a33.c b/drivers/clk/sunxi-ng/ccu-sun8i-a33.c
index a7b3c08..2c69b63 100644
--- a/drivers/clk/sunxi-ng/ccu-sun8i-a33.c
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-a33.c
@@ -752,6 +752,13 @@ static const struct sunxi_ccu_desc sun8i_a33_ccu_desc = {
.num_resets = ARRAY_SIZE(sun8i_a33_ccu_resets),
};
+static struct ccu_pll_nb sun8i_a33_pll_cpu_nb = {
+ .common = &pll_cpux_clk.common,
+ /* copy from pll_cpux_clk */
+ .enable = BIT(31),
+ .lock = BIT(28),
+};
+
static struct ccu_mux_nb sun8i_a33_cpu_nb = {
.common = &cpux_clk.common,
.cm = &cpux_clk.mux,
@@ -783,6 +790,10 @@ static void __init sun8i_a33_ccu_setup(struct device_node *node)
sunxi_ccu_probe(node, reg, &sun8i_a33_ccu_desc);
+ /* Gate then ungate PLL CPU after any rate changes */
+ ccu_pll_notifier_register(&sun8i_a33_pll_cpu_nb);
+
+ /* Reparent CPU during PLL CPU rate changes */
ccu_mux_notifier_register(pll_cpux_clk.common.hw.clk,
&sun8i_a33_cpu_nb);
}
diff --git a/drivers/clk/sunxi-ng/ccu_common.c b/drivers/clk/sunxi-ng/ccu_common.c
index 8a47baf..9d87247 100644
--- a/drivers/clk/sunxi-ng/ccu_common.c
+++ b/drivers/clk/sunxi-ng/ccu_common.c
@@ -14,11 +14,13 @@
* GNU General Public License for more details.
*/
+#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/iopoll.h>
#include <linux/slab.h>
#include "ccu_common.h"
+#include "ccu_gate.h"
#include "ccu_reset.h"
static DEFINE_SPINLOCK(ccu_lock);
@@ -39,6 +41,53 @@ void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock)
WARN_ON(readl_relaxed_poll_timeout(addr, reg, reg & lock, 100, 70000));
}
+/*
+ * This clock notifier is called when the frequency of a PLL clock is
+ * changed. In common PLL designs, changes to the dividers take effect
+ * almost immediately, while changes to the multipliers (implemented
+ * as dividers in the feedback loop) take a few cycles to work into
+ * the feedback loop for the PLL to stablize.
+ *
+ * Sometimes when the PLL clock rate is changed, the decrease in the
+ * divider is too much for the decrease in the multiplier to catch up.
+ * The PLL clock rate will spike, and in some cases, might lock up
+ * completely.
+ *
+ * This notifier callback will gate and then ungate the clock,
+ * effectively resetting it, so it proceeds to work. Care must be
+ * taken to reparent consumers to other temporary clocks during the
+ * rate change, and that this notifier callback must be the first
+ * to be registered.
+ */
+static int ccu_pll_notifier_cb(struct notifier_block *nb,
+ unsigned long event, void *data)
+{
+ struct ccu_pll_nb *pll = to_ccu_pll_nb(nb);
+ int ret = 0;
+
+ if (event != POST_RATE_CHANGE)
+ goto out;
+
+ ccu_gate_helper_disable(pll->common, pll->enable);
+
+ ret = ccu_gate_helper_enable(pll->common, pll->enable);
+ if (ret)
+ goto out;
+
+ ccu_helper_wait_for_lock(pll->common, pll->lock);
+
+out:
+ return notifier_from_errno(ret);
+}
+
+int ccu_pll_notifier_register(struct ccu_pll_nb *pll_nb)
+{
+ pll_nb->clk_nb.notifier_call = ccu_pll_notifier_cb;
+
+ return clk_notifier_register(pll_nb->common->hw.clk,
+ &pll_nb->clk_nb);
+}
+
int sunxi_ccu_probe(struct device_node *node, void __iomem *reg,
const struct sunxi_ccu_desc *desc)
{
diff --git a/drivers/clk/sunxi-ng/ccu_common.h b/drivers/clk/sunxi-ng/ccu_common.h
index 73d81dc..d6fdd7a 100644
--- a/drivers/clk/sunxi-ng/ccu_common.h
+++ b/drivers/clk/sunxi-ng/ccu_common.h
@@ -83,6 +83,18 @@ struct sunxi_ccu_desc {
void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock);
+struct ccu_pll_nb {
+ struct notifier_block clk_nb;
+ struct ccu_common *common;
+
+ u32 enable;
+ u32 lock;
+};
+
+#define to_ccu_pll_nb(_nb) container_of(_nb, struct ccu_pll_nb, clk_nb)
+
+int ccu_pll_notifier_register(struct ccu_pll_nb *pll_nb);
+
int sunxi_ccu_probe(struct device_node *node, void __iomem *reg,
const struct sunxi_ccu_desc *desc);
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 94250c2..c68ac65 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2006,7 +2006,7 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field
return;
case HID_DG_TOOLSERIALNUMBER:
wacom_wac->serial[0] = (wacom_wac->serial[0] & ~0xFFFFFFFFULL);
- wacom_wac->serial[0] |= value;
+ wacom_wac->serial[0] |= (__u32)value;
return;
case WACOM_HID_WD_SENSE:
wacom_wac->hid_data.sense_state = value;
@@ -2176,6 +2176,16 @@ static void wacom_wac_finger_usage_mapping(struct hid_device *hdev,
wacom_wac->hid_data.cc_index = field->index;
wacom_wac->hid_data.cc_value_index = usage->usage_index;
break;
+ case HID_DG_CONTACTID:
+ if ((field->logical_maximum - field->logical_minimum) < touch_max) {
+ /*
+ * The HID descriptor for G11 sensors leaves logical
+ * maximum set to '1' despite it being a multitouch
+ * device. Override to a sensible number.
+ */
+ field->logical_maximum = 255;
+ }
+ break;
}
}
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index efc8ec3..e73d968 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1118,6 +1118,7 @@ static int elantech_get_resolution_v4(struct psmouse *psmouse,
* Asus UX32VD 0x361f02 00, 15, 0e clickpad
* Avatar AVIU-145A2 0x361f00 ? clickpad
* Fujitsu LIFEBOOK E544 0x470f00 d0, 12, 09 2 hw buttons
+ * Fujitsu LIFEBOOK E547 0x470f00 50, 12, 09 2 hw buttons
* Fujitsu LIFEBOOK E554 0x570f01 40, 14, 0c 2 hw buttons
* Fujitsu T725 0x470f01 05, 12, 09 2 hw buttons
* Fujitsu H730 0x570f00 c0, 14, 0c 3 hw buttons (**)
@@ -1524,6 +1525,13 @@ static const struct dmi_system_id elantech_dmi_force_crc_enabled[] = {
},
},
{
+ /* Fujitsu LIFEBOOK E547 does not work with crc_enabled == 0 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E547"),
+ },
+ },
+ {
/* Fujitsu LIFEBOOK E554 does not work with crc_enabled == 0 */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
index e992a7f..2b32b88 100644
--- a/drivers/mmc/core/sdio_bus.c
+++ b/drivers/mmc/core/sdio_bus.c
@@ -267,7 +267,7 @@ static void sdio_release_func(struct device *dev)
sdio_free_func_cis(func);
kfree(func->info);
-
+ kfree(func->tmpbuf);
kfree(func);
}
@@ -282,6 +282,16 @@ struct sdio_func *sdio_alloc_func(struct mmc_card *card)
if (!func)
return ERR_PTR(-ENOMEM);
+ /*
+ * allocate buffer separately to make sure it's properly aligned for
+ * DMA usage (incl. 64 bit DMA)
+ */
+ func->tmpbuf = kmalloc(4, GFP_KERNEL);
+ if (!func->tmpbuf) {
+ kfree(func);
+ return ERR_PTR(-ENOMEM);
+ }
+
func->card = card;
device_initialize(&func->dev);
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index a9ac0b4..8718432 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -22,6 +22,7 @@
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/stat.h>
@@ -1621,10 +1622,16 @@ static void dw_mci_init_card(struct mmc_host *mmc, struct mmc_card *card)
if (card->type == MMC_TYPE_SDIO ||
card->type == MMC_TYPE_SD_COMBO) {
- set_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
+ if (!test_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags)) {
+ pm_runtime_get_noresume(mmc->parent);
+ set_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
+ }
clk_en_a = clk_en_a_old & ~clken_low_pwr;
} else {
- clear_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
+ if (test_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags)) {
+ pm_runtime_put_noidle(mmc->parent);
+ clear_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
+ }
clk_en_a = clk_en_a_old | clken_low_pwr;
}
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 7123ef9..445fc47 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -830,6 +830,7 @@ static int esdhc_change_pinstate(struct sdhci_host *host,
switch (uhs) {
case MMC_TIMING_UHS_SDR50:
+ case MMC_TIMING_UHS_DDR50:
pinctrl = imx_data->pins_100mhz;
break;
case MMC_TIMING_UHS_SDR104:
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
index 2fc1fde..e575cfe 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
@@ -581,6 +581,13 @@ qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
p_params->ets_cbs,
p_ets->pri_tc_tbl[0], p_params->max_ets_tc);
+ if (p_params->ets_enabled && !p_params->max_ets_tc) {
+ p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
+ DP_VERBOSE(p_hwfn, QED_MSG_DCB,
+ "ETS params: max_ets_tc is forced to %d\n",
+ p_params->max_ets_tc);
+ }
+
/* 8 bit tsa and bw data corresponding to each of the 8 TC's are
* encoded in a type u32 array of size 2.
*/
@@ -999,6 +1006,8 @@ qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
u8 pfc_map = 0;
int i;
+ *pfc &= ~DCBX_PFC_ERROR_MASK;
+
if (p_params->pfc.willing)
*pfc |= DCBX_PFC_WILLING_MASK;
else
@@ -1253,7 +1262,7 @@ static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
{
struct qed_dcbx_get *dcbx_info;
- dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
+ dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_ATOMIC);
if (!dcbx_info)
return NULL;
@@ -2071,6 +2080,8 @@ static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
+ dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
+
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return -EINVAL;
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index e2460a5..ed0d10f 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -1438,8 +1438,6 @@ static bool dp83640_rxtstamp(struct phy_device *phydev,
skb_info->tmo = jiffies + SKB_TIMESTAMP_TIMEOUT;
skb_queue_tail(&dp83640->rx_queue, skb);
schedule_delayed_work(&dp83640->ts_work, SKB_TIMESTAMP_TIMEOUT);
- } else {
- netif_rx_ni(skb);
}
return true;
diff --git a/drivers/net/usb/ch9200.c b/drivers/net/usb/ch9200.c
index 8a40202..c4f1c36 100644
--- a/drivers/net/usb/ch9200.c
+++ b/drivers/net/usb/ch9200.c
@@ -254,14 +254,9 @@ static struct sk_buff *ch9200_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
tx_overhead = 0x40;
len = skb->len;
- if (skb_headroom(skb) < tx_overhead) {
- struct sk_buff *skb2;
-
- skb2 = skb_copy_expand(skb, tx_overhead, 0, flags);
+ if (skb_cow_head(skb, tx_overhead)) {
dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
+ return NULL;
}
__skb_push(skb, tx_overhead);
diff --git a/drivers/net/usb/cx82310_eth.c b/drivers/net/usb/cx82310_eth.c
index e221bfc..947bea8 100644
--- a/drivers/net/usb/cx82310_eth.c
+++ b/drivers/net/usb/cx82310_eth.c
@@ -293,12 +293,9 @@ static struct sk_buff *cx82310_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
{
int len = skb->len;
- if (skb_headroom(skb) < 2) {
- struct sk_buff *skb2 = skb_copy_expand(skb, 2, 0, flags);
+ if (skb_cow_head(skb, 2)) {
dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
+ return NULL;
}
skb_push(skb, 2);
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index 3d8ea18..37fb621 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -801,18 +801,12 @@ static netdev_tx_t kaweth_start_xmit(struct sk_buff *skb,
}
/* We now decide whether we can put our special header into the sk_buff */
- if (skb_cloned(skb) || skb_headroom(skb) < 2) {
- /* no such luck - we make our own */
- struct sk_buff *copied_skb;
- copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC);
- dev_kfree_skb_irq(skb);
- skb = copied_skb;
- if (!copied_skb) {
- net->stats.tx_errors++;
- netif_start_queue(net);
- spin_unlock_irq(&kaweth->device_lock);
- return NETDEV_TX_OK;
- }
+ if (skb_cow_head(skb, 2)) {
+ net->stats.tx_errors++;
+ netif_start_queue(net);
+ spin_unlock_irq(&kaweth->device_lock);
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
}
private_header = (__le16 *)__skb_push(skb, 2);
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index a17e32b..9eff97a 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -2608,14 +2608,9 @@ static struct sk_buff *lan78xx_tx_prep(struct lan78xx_net *dev,
{
u32 tx_cmd_a, tx_cmd_b;
- if (skb_headroom(skb) < TX_OVERHEAD) {
- struct sk_buff *skb2;
-
- skb2 = skb_copy_expand(skb, TX_OVERHEAD, 0, flags);
+ if (skb_cow_head(skb, TX_OVERHEAD)) {
dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
+ return NULL;
}
if (lan78xx_linearize(skb) < 0)
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index 1ce01db..d0a1137 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -2204,13 +2204,9 @@ static struct sk_buff *smsc75xx_tx_fixup(struct usbnet *dev,
{
u32 tx_cmd_a, tx_cmd_b;
- if (skb_headroom(skb) < SMSC75XX_TX_OVERHEAD) {
- struct sk_buff *skb2 =
- skb_copy_expand(skb, SMSC75XX_TX_OVERHEAD, 0, flags);
+ if (skb_cow_head(skb, SMSC75XX_TX_OVERHEAD)) {
dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
+ return NULL;
}
tx_cmd_a = (u32)(skb->len & TX_CMD_A_LEN) | TX_CMD_A_FCS;
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 4db2b6e..765400b 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -2002,13 +2002,13 @@ static struct sk_buff *smsc95xx_tx_fixup(struct usbnet *dev,
/* We do not advertise SG, so skbs should be already linearized */
BUG_ON(skb_shinfo(skb)->nr_frags);
- if (skb_headroom(skb) < overhead) {
- struct sk_buff *skb2 = skb_copy_expand(skb,
- overhead, 0, flags);
+ /* Make writable and expand header space by overhead if required */
+ if (skb_cow_head(skb, overhead)) {
+ /* Must deallocate here as returning NULL to indicate error
+ * means the skb won't be deallocated in the caller.
+ */
dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
+ return NULL;
}
if (csum) {
diff --git a/drivers/net/usb/sr9700.c b/drivers/net/usb/sr9700.c
index 317287f..2d316c1 100644
--- a/drivers/net/usb/sr9700.c
+++ b/drivers/net/usb/sr9700.c
@@ -457,14 +457,9 @@ static struct sk_buff *sr9700_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
len = skb->len;
- if (skb_headroom(skb) < SR_TX_OVERHEAD) {
- struct sk_buff *skb2;
-
- skb2 = skb_copy_expand(skb, SR_TX_OVERHEAD, 0, flags);
+ if (skb_cow_head(skb, SR_TX_OVERHEAD)) {
dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
+ return NULL;
}
__skb_push(skb, SR_TX_OVERHEAD);
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 9583a5f..eeb409c 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1316,6 +1316,14 @@ static void nvme_configure_apst(struct nvme_ctrl *ctrl)
table->entries[state] = target;
/*
+ * Don't allow transitions to the deepest state
+ * if it's quirked off.
+ */
+ if (state == ctrl->npss &&
+ (ctrl->quirks & NVME_QUIRK_NO_DEEPEST_PS))
+ continue;
+
+ /*
* Is this state a useful non-operational state for
* higher-power states to autonomously transition to?
*/
@@ -1387,16 +1395,15 @@ struct nvme_core_quirk_entry {
};
static const struct nvme_core_quirk_entry core_quirks[] = {
- /*
- * Seen on a Samsung "SM951 NVMe SAMSUNG 256GB": using APST causes
- * the controller to go out to lunch. It dies when the watchdog
- * timer reads CSTS and gets 0xffffffff.
- */
{
- .vid = 0x144d,
- .fr = "BXW75D0Q",
+ /*
+ * This Toshiba device seems to die using any APST states. See:
+ * https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678184/comments/11
+ */
+ .vid = 0x1179,
+ .mn = "THNSF5256GPUK TOSHIBA",
.quirks = NVME_QUIRK_NO_APST,
- },
+ }
};
/* match is null-terminated but idstr is space-padded. */
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 2aa20e3..ab2d6ec 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -83,6 +83,11 @@ enum nvme_quirks {
* APST should not be used.
*/
NVME_QUIRK_NO_APST = (1 << 4),
+
+ /*
+ * The deepest sleep state should not be used.
+ */
+ NVME_QUIRK_NO_DEEPEST_PS = (1 << 5),
};
/*
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 26a5fd0..5d30953 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -19,6 +19,7 @@
#include <linux/blk-mq-pci.h>
#include <linux/cpu.h>
#include <linux/delay.h>
+#include <linux/dmi.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/genhd.h>
@@ -1943,10 +1944,31 @@ static int nvme_dev_map(struct nvme_dev *dev)
return -ENODEV;
}
+static unsigned long check_dell_samsung_bug(struct pci_dev *pdev)
+{
+ if (pdev->vendor == 0x144d && pdev->device == 0xa802) {
+ /*
+ * Several Samsung devices seem to drop off the PCIe bus
+ * randomly when APST is on and uses the deepest sleep state.
+ * This has been observed on a Samsung "SM951 NVMe SAMSUNG
+ * 256GB", a "PM951 NVMe SAMSUNG 512GB", and a "Samsung SSD
+ * 950 PRO 256GB", but it seems to be restricted to two Dell
+ * laptops.
+ */
+ if (dmi_match(DMI_SYS_VENDOR, "Dell Inc.") &&
+ (dmi_match(DMI_PRODUCT_NAME, "XPS 15 9550") ||
+ dmi_match(DMI_PRODUCT_NAME, "Precision 5510")))
+ return NVME_QUIRK_NO_DEEPEST_PS;
+ }
+
+ return 0;
+}
+
static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
int node, result = -ENOMEM;
struct nvme_dev *dev;
+ unsigned long quirks = id->driver_data;
node = dev_to_node(&pdev->dev);
if (node == NUMA_NO_NODE)
@@ -1978,8 +2000,10 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if (result)
goto put_pci;
+ quirks |= check_dell_samsung_bug(pdev);
+
result = nvme_init_ctrl(&dev->ctrl, &pdev->dev, &nvme_pci_ctrl_ops,
- id->driver_data);
+ quirks);
if (result)
goto release_pools;
diff --git a/drivers/pci/dwc/pcie-hisi.c b/drivers/pci/dwc/pcie-hisi.c
index fd66a31..cf9d6a9 100644
--- a/drivers/pci/dwc/pcie-hisi.c
+++ b/drivers/pci/dwc/pcie-hisi.c
@@ -380,9 +380,13 @@ struct pci_ecam_ops hisi_pcie_platform_ops = {
static const struct of_device_id hisi_pcie_almost_ecam_of_match[] = {
{
- .compatible = "hisilicon,pcie-almost-ecam",
+ .compatible = "hisilicon,hip06-pcie-ecam",
.data = (void *) &hisi_pcie_platform_ops,
},
+ {
+ .compatible = "hisilicon,hip07-pcie-ecam",
+ .data = (void *) &hisi_pcie_platform_ops,
+ },
{},
};
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index d7efcb6..002f1ce 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -297,14 +297,15 @@ static int pwm_backlight_probe(struct platform_device *pdev)
}
/*
- * If the GPIO is configured as input, change the direction to output
- * and set the GPIO as active.
+ * If the GPIO is not known to be already configured as output, that
+ * is, if gpiod_get_direction returns either GPIOF_DIR_IN or -EINVAL,
+ * change the direction to output and set the GPIO as active.
* Do not force the GPIO to active when it was already output as it
* could cause backlight flickering or we would enable the backlight too
* early. Leave the decision of the initial backlight state for later.
*/
if (pb->enable_gpio &&
- gpiod_get_direction(pb->enable_gpio) == GPIOF_DIR_IN)
+ gpiod_get_direction(pb->enable_gpio) != GPIOF_DIR_OUT)
gpiod_direction_output(pb->enable_gpio, 1);
pb->power_supply = devm_regulator_get(&pdev->dev, "power");
