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Message-Id: <165910802821238@kroah.com>
Date: Fri, 29 Jul 2022 17:20:28 +0200
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 4.14.290
diff --git a/Makefile b/Makefile
index fad6bf5e3c69..49aa7e0433f1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 14
-SUBLEVEL = 289
+SUBLEVEL = 290
EXTRAVERSION =
NAME = Petit Gorille
diff --git a/arch/alpha/kernel/srmcons.c b/arch/alpha/kernel/srmcons.c
index 5da0aec8ce90..89fdd7c6daf0 100644
--- a/arch/alpha/kernel/srmcons.c
+++ b/arch/alpha/kernel/srmcons.c
@@ -59,7 +59,7 @@ srmcons_do_receive_chars(struct tty_port *port)
} while((result.bits.status & 1) && (++loops < 10));
if (count)
- tty_schedule_flip(port);
+ tty_flip_buffer_push(port);
return count;
}
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 9efa197364a6..261ec2a1dcf4 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -183,8 +183,8 @@ static void __cold process_random_ready_list(void)
#define warn_unseeded_randomness() \
if (IS_ENABLED(CONFIG_WARN_ALL_UNSEEDED_RANDOM) && !crng_ready()) \
- pr_notice("%s called from %pS with crng_init=%d\n", \
- __func__, (void *)_RET_IP_, crng_init)
+ printk_deferred(KERN_NOTICE "random: %s called from %pS with crng_init=%d\n", \
+ __func__, (void *)_RET_IP_, crng_init)
/*********************************************************************
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index 06d6e785c920..7b11908d992a 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -707,9 +707,6 @@ static bool tilcdc_crtc_mode_fixup(struct drm_crtc *crtc,
static int tilcdc_crtc_atomic_check(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
- struct drm_display_mode *mode = &state->mode;
- int ret;
-
/* If we are not active we don't care */
if (!state->active)
return 0;
@@ -721,12 +718,6 @@ static int tilcdc_crtc_atomic_check(struct drm_crtc *crtc,
return -EINVAL;
}
- ret = tilcdc_crtc_mode_valid(crtc, mode);
- if (ret) {
- dev_dbg(crtc->dev->dev, "Mode \"%s\" not valid", mode->name);
- return -EINVAL;
- }
-
return 0;
}
@@ -750,13 +741,6 @@ static const struct drm_crtc_funcs tilcdc_crtc_funcs = {
.disable_vblank = tilcdc_crtc_disable_vblank,
};
-static const struct drm_crtc_helper_funcs tilcdc_crtc_helper_funcs = {
- .mode_fixup = tilcdc_crtc_mode_fixup,
- .atomic_check = tilcdc_crtc_atomic_check,
- .atomic_enable = tilcdc_crtc_atomic_enable,
- .atomic_disable = tilcdc_crtc_atomic_disable,
-};
-
int tilcdc_crtc_max_width(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
@@ -771,7 +755,9 @@ int tilcdc_crtc_max_width(struct drm_crtc *crtc)
return max_width;
}
-int tilcdc_crtc_mode_valid(struct drm_crtc *crtc, struct drm_display_mode *mode)
+static enum drm_mode_status
+tilcdc_crtc_mode_valid(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode)
{
struct tilcdc_drm_private *priv = crtc->dev->dev_private;
unsigned int bandwidth;
@@ -859,6 +845,14 @@ int tilcdc_crtc_mode_valid(struct drm_crtc *crtc, struct drm_display_mode *mode)
return MODE_OK;
}
+static const struct drm_crtc_helper_funcs tilcdc_crtc_helper_funcs = {
+ .mode_valid = tilcdc_crtc_mode_valid,
+ .mode_fixup = tilcdc_crtc_mode_fixup,
+ .atomic_check = tilcdc_crtc_atomic_check,
+ .atomic_enable = tilcdc_crtc_atomic_enable,
+ .atomic_disable = tilcdc_crtc_atomic_disable,
+};
+
void tilcdc_crtc_set_panel_info(struct drm_crtc *crtc,
const struct tilcdc_panel_info *info)
{
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 56039897607c..d42e1f9f2949 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -208,7 +208,6 @@ static void tilcdc_fini(struct drm_device *dev)
drm_irq_uninstall(dev);
drm_mode_config_cleanup(dev);
- tilcdc_remove_external_device(dev);
if (priv->clk)
clk_put(priv->clk);
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.h b/drivers/gpu/drm/tilcdc/tilcdc_drv.h
index 8caa11bc7aec..c0ab69c79a93 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.h
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.h
@@ -91,7 +91,6 @@ struct tilcdc_drm_private {
struct drm_encoder *external_encoder;
struct drm_connector *external_connector;
- const struct drm_connector_helper_funcs *connector_funcs;
bool is_registered;
bool is_componentized;
@@ -173,7 +172,6 @@ void tilcdc_crtc_set_panel_info(struct drm_crtc *crtc,
const struct tilcdc_panel_info *info);
void tilcdc_crtc_set_simulate_vesa_sync(struct drm_crtc *crtc,
bool simulate_vesa_sync);
-int tilcdc_crtc_mode_valid(struct drm_crtc *crtc, struct drm_display_mode *mode);
int tilcdc_crtc_max_width(struct drm_crtc *crtc);
void tilcdc_crtc_shutdown(struct drm_crtc *crtc);
int tilcdc_crtc_update_fb(struct drm_crtc *crtc,
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_external.c b/drivers/gpu/drm/tilcdc/tilcdc_external.c
index 711c7b3289d3..511e178012cd 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_external.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_external.c
@@ -40,64 +40,6 @@ static const struct tilcdc_panel_info panel_info_default = {
.raster_order = 0,
};
-static int tilcdc_external_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- struct tilcdc_drm_private *priv = connector->dev->dev_private;
- int ret;
-
- ret = tilcdc_crtc_mode_valid(priv->crtc, mode);
- if (ret != MODE_OK)
- return ret;
-
- BUG_ON(priv->external_connector != connector);
- BUG_ON(!priv->connector_funcs);
-
- /* If the connector has its own mode_valid call it. */
- if (!IS_ERR(priv->connector_funcs) &&
- priv->connector_funcs->mode_valid)
- return priv->connector_funcs->mode_valid(connector, mode);
-
- return MODE_OK;
-}
-
-static int tilcdc_add_external_connector(struct drm_device *dev,
- struct drm_connector *connector)
-{
- struct tilcdc_drm_private *priv = dev->dev_private;
- struct drm_connector_helper_funcs *connector_funcs;
-
- /* There should never be more than one connector */
- if (WARN_ON(priv->external_connector))
- return -EINVAL;
-
- priv->external_connector = connector;
- connector_funcs = devm_kzalloc(dev->dev, sizeof(*connector_funcs),
- GFP_KERNEL);
- if (!connector_funcs)
- return -ENOMEM;
-
- /* connector->helper_private contains always struct
- * connector_helper_funcs pointer. For tilcdc crtc to have a
- * say if a specific mode is Ok, we need to install our own
- * helper functions. In our helper functions we copy
- * everything else but use our own mode_valid() (above).
- */
- if (connector->helper_private) {
- priv->connector_funcs = connector->helper_private;
- *connector_funcs = *priv->connector_funcs;
- } else {
- priv->connector_funcs = ERR_PTR(-ENOENT);
- }
- connector_funcs->mode_valid = tilcdc_external_mode_valid;
- drm_connector_helper_add(connector, connector_funcs);
-
- dev_dbg(dev->dev, "External connector '%s' connected\n",
- connector->name);
-
- return 0;
-}
-
static
struct drm_connector *tilcdc_encoder_find_connector(struct drm_device *ddev,
struct drm_encoder *encoder)
@@ -119,40 +61,30 @@ struct drm_connector *tilcdc_encoder_find_connector(struct drm_device *ddev,
int tilcdc_add_component_encoder(struct drm_device *ddev)
{
struct tilcdc_drm_private *priv = ddev->dev_private;
- struct drm_connector *connector;
- struct drm_encoder *encoder;
+ struct drm_encoder *encoder = NULL, *iter;
- list_for_each_entry(encoder, &ddev->mode_config.encoder_list, head)
- if (encoder->possible_crtcs & (1 << priv->crtc->index))
+ list_for_each_entry(iter, &ddev->mode_config.encoder_list, head)
+ if (iter->possible_crtcs & (1 << priv->crtc->index)) {
+ encoder = iter;
break;
+ }
if (!encoder) {
dev_err(ddev->dev, "%s: No suitable encoder found\n", __func__);
return -ENODEV;
}
- connector = tilcdc_encoder_find_connector(ddev, encoder);
+ priv->external_connector =
+ tilcdc_encoder_find_connector(ddev, encoder);
- if (!connector)
+ if (!priv->external_connector)
return -ENODEV;
/* Only tda998x is supported at the moment. */
tilcdc_crtc_set_simulate_vesa_sync(priv->crtc, true);
tilcdc_crtc_set_panel_info(priv->crtc, &panel_info_tda998x);
- return tilcdc_add_external_connector(ddev, connector);
-}
-
-void tilcdc_remove_external_device(struct drm_device *dev)
-{
- struct tilcdc_drm_private *priv = dev->dev_private;
-
- /* Restore the original helper functions, if any. */
- if (IS_ERR(priv->connector_funcs))
- drm_connector_helper_add(priv->external_connector, NULL);
- else if (priv->connector_funcs)
- drm_connector_helper_add(priv->external_connector,
- priv->connector_funcs);
+ return 0;
}
static const struct drm_encoder_funcs tilcdc_external_encoder_funcs = {
@@ -163,7 +95,6 @@ static
int tilcdc_attach_bridge(struct drm_device *ddev, struct drm_bridge *bridge)
{
struct tilcdc_drm_private *priv = ddev->dev_private;
- struct drm_connector *connector;
int ret;
priv->external_encoder->possible_crtcs = BIT(0);
@@ -176,13 +107,12 @@ int tilcdc_attach_bridge(struct drm_device *ddev, struct drm_bridge *bridge)
tilcdc_crtc_set_panel_info(priv->crtc, &panel_info_default);
- connector = tilcdc_encoder_find_connector(ddev, priv->external_encoder);
- if (!connector)
+ priv->external_connector =
+ tilcdc_encoder_find_connector(ddev, priv->external_encoder);
+ if (!priv->external_connector)
return -ENODEV;
- ret = tilcdc_add_external_connector(ddev, connector);
-
- return ret;
+ return 0;
}
int tilcdc_attach_external_device(struct drm_device *ddev)
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_external.h b/drivers/gpu/drm/tilcdc/tilcdc_external.h
index 763d18f006c7..a28b9df68c8f 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_external.h
+++ b/drivers/gpu/drm/tilcdc/tilcdc_external.h
@@ -19,7 +19,6 @@
#define __TILCDC_EXTERNAL_H__
int tilcdc_add_component_encoder(struct drm_device *dev);
-void tilcdc_remove_external_device(struct drm_device *dev);
int tilcdc_get_external_components(struct device *dev,
struct component_match **match);
int tilcdc_attach_external_device(struct drm_device *ddev);
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_panel.c b/drivers/gpu/drm/tilcdc/tilcdc_panel.c
index 0484b2cf0e2b..f67a6194fd65 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_panel.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_panel.c
@@ -176,14 +176,6 @@ static int panel_connector_get_modes(struct drm_connector *connector)
return i;
}
-static int panel_connector_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- struct tilcdc_drm_private *priv = connector->dev->dev_private;
- /* our only constraints are what the crtc can generate: */
- return tilcdc_crtc_mode_valid(priv->crtc, mode);
-}
-
static struct drm_encoder *panel_connector_best_encoder(
struct drm_connector *connector)
{
@@ -201,7 +193,6 @@ static const struct drm_connector_funcs panel_connector_funcs = {
static const struct drm_connector_helper_funcs panel_connector_helper_funcs = {
.get_modes = panel_connector_get_modes,
- .mode_valid = panel_connector_mode_valid,
.best_encoder = panel_connector_best_encoder,
};
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
index 1e2dfb1b1d6b..68c7bbba24e9 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
@@ -185,14 +185,6 @@ static int tfp410_connector_get_modes(struct drm_connector *connector)
return ret;
}
-static int tfp410_connector_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- struct tilcdc_drm_private *priv = connector->dev->dev_private;
- /* our only constraints are what the crtc can generate: */
- return tilcdc_crtc_mode_valid(priv->crtc, mode);
-}
-
static struct drm_encoder *tfp410_connector_best_encoder(
struct drm_connector *connector)
{
@@ -211,7 +203,6 @@ static const struct drm_connector_funcs tfp410_connector_funcs = {
static const struct drm_connector_helper_funcs tfp410_connector_helper_funcs = {
.get_modes = tfp410_connector_get_modes,
- .mode_valid = tfp410_connector_mode_valid,
.best_encoder = tfp410_connector_best_encoder,
};
diff --git a/drivers/i2c/busses/i2c-cadence.c b/drivers/i2c/busses/i2c-cadence.c
index 273f57e277b3..512c61d31fe5 100644
--- a/drivers/i2c/busses/i2c-cadence.c
+++ b/drivers/i2c/busses/i2c-cadence.c
@@ -203,9 +203,9 @@ static inline bool cdns_is_holdquirk(struct cdns_i2c *id, bool hold_wrkaround)
*/
static irqreturn_t cdns_i2c_isr(int irq, void *ptr)
{
- unsigned int isr_status, avail_bytes, updatetx;
+ unsigned int isr_status, avail_bytes;
unsigned int bytes_to_send;
- bool hold_quirk;
+ bool updatetx;
struct cdns_i2c *id = ptr;
/* Signal completion only after everything is updated */
int done_flag = 0;
@@ -224,11 +224,7 @@ static irqreturn_t cdns_i2c_isr(int irq, void *ptr)
* Check if transfer size register needs to be updated again for a
* large data receive operation.
*/
- updatetx = 0;
- if (id->recv_count > id->curr_recv_count)
- updatetx = 1;
-
- hold_quirk = (id->quirks & CDNS_I2C_BROKEN_HOLD_BIT) && updatetx;
+ updatetx = id->recv_count > id->curr_recv_count;
/* When receiving, handle data interrupt and completion interrupt */
if (id->p_recv_buf &&
@@ -251,7 +247,7 @@ static irqreturn_t cdns_i2c_isr(int irq, void *ptr)
id->recv_count--;
id->curr_recv_count--;
- if (cdns_is_holdquirk(id, hold_quirk))
+ if (cdns_is_holdquirk(id, updatetx))
break;
}
@@ -262,7 +258,7 @@ static irqreturn_t cdns_i2c_isr(int irq, void *ptr)
* maintain transfer size non-zero while performing a large
* receive operation.
*/
- if (cdns_is_holdquirk(id, hold_quirk)) {
+ if (cdns_is_holdquirk(id, updatetx)) {
/* wait while fifo is full */
while (cdns_i2c_readreg(CDNS_I2C_XFER_SIZE_OFFSET) !=
(id->curr_recv_count - CDNS_I2C_FIFO_DEPTH))
@@ -284,22 +280,6 @@ static irqreturn_t cdns_i2c_isr(int irq, void *ptr)
CDNS_I2C_XFER_SIZE_OFFSET);
id->curr_recv_count = id->recv_count;
}
- } else if (id->recv_count && !hold_quirk &&
- !id->curr_recv_count) {
-
- /* Set the slave address in address register*/
- cdns_i2c_writereg(id->p_msg->addr & CDNS_I2C_ADDR_MASK,
- CDNS_I2C_ADDR_OFFSET);
-
- if (id->recv_count > CDNS_I2C_TRANSFER_SIZE) {
- cdns_i2c_writereg(CDNS_I2C_TRANSFER_SIZE,
- CDNS_I2C_XFER_SIZE_OFFSET);
- id->curr_recv_count = CDNS_I2C_TRANSFER_SIZE;
- } else {
- cdns_i2c_writereg(id->recv_count,
- CDNS_I2C_XFER_SIZE_OFFSET);
- id->curr_recv_count = id->recv_count;
- }
}
/* Clear hold (if not repeated start) and signal completion */
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 1589a568bfe0..7ea2e5dbacd5 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -2291,7 +2291,7 @@ int be_cmd_get_beacon_state(struct be_adapter *adapter, u8 port_num, u32 *state)
/* Uses sync mcc */
int be_cmd_read_port_transceiver_data(struct be_adapter *adapter,
- u8 page_num, u8 *data)
+ u8 page_num, u32 off, u32 len, u8 *data)
{
struct be_dma_mem cmd;
struct be_mcc_wrb *wrb;
@@ -2325,10 +2325,10 @@ int be_cmd_read_port_transceiver_data(struct be_adapter *adapter,
req->port = cpu_to_le32(adapter->hba_port_num);
req->page_num = cpu_to_le32(page_num);
status = be_mcc_notify_wait(adapter);
- if (!status) {
+ if (!status && len > 0) {
struct be_cmd_resp_port_type *resp = cmd.va;
- memcpy(data, resp->page_data, PAGE_DATA_LEN);
+ memcpy(data, resp->page_data + off, len);
}
err:
mutex_unlock(&adapter->mcc_lock);
@@ -2419,7 +2419,7 @@ int be_cmd_query_cable_type(struct be_adapter *adapter)
int status;
status = be_cmd_read_port_transceiver_data(adapter, TR_PAGE_A0,
- page_data);
+ 0, PAGE_DATA_LEN, page_data);
if (!status) {
switch (adapter->phy.interface_type) {
case PHY_TYPE_QSFP:
@@ -2444,7 +2444,7 @@ int be_cmd_query_sfp_info(struct be_adapter *adapter)
int status;
status = be_cmd_read_port_transceiver_data(adapter, TR_PAGE_A0,
- page_data);
+ 0, PAGE_DATA_LEN, page_data);
if (!status) {
strlcpy(adapter->phy.vendor_name, page_data +
SFP_VENDOR_NAME_OFFSET, SFP_VENDOR_NAME_LEN - 1);
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 09da2d82c2f0..8af11a5e49fe 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -2431,7 +2431,7 @@ int be_cmd_set_beacon_state(struct be_adapter *adapter, u8 port_num, u8 beacon,
int be_cmd_get_beacon_state(struct be_adapter *adapter, u8 port_num,
u32 *state);
int be_cmd_read_port_transceiver_data(struct be_adapter *adapter,
- u8 page_num, u8 *data);
+ u8 page_num, u32 off, u32 len, u8 *data);
int be_cmd_query_cable_type(struct be_adapter *adapter);
int be_cmd_query_sfp_info(struct be_adapter *adapter);
int lancer_cmd_read_object(struct be_adapter *adapter, struct be_dma_mem *cmd,
diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index f66b246acaea..d0d96fa71084 100644
--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
+++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
@@ -1340,7 +1340,7 @@ static int be_get_module_info(struct net_device *netdev,
return -EOPNOTSUPP;
status = be_cmd_read_port_transceiver_data(adapter, TR_PAGE_A0,
- page_data);
+ 0, PAGE_DATA_LEN, page_data);
if (!status) {
if (!page_data[SFP_PLUS_SFF_8472_COMP]) {
modinfo->type = ETH_MODULE_SFF_8079;
@@ -1358,25 +1358,32 @@ static int be_get_module_eeprom(struct net_device *netdev,
{
struct be_adapter *adapter = netdev_priv(netdev);
int status;
+ u32 begin, end;
if (!check_privilege(adapter, MAX_PRIVILEGES))
return -EOPNOTSUPP;
- status = be_cmd_read_port_transceiver_data(adapter, TR_PAGE_A0,
- data);
- if (status)
- goto err;
+ begin = eeprom->offset;
+ end = eeprom->offset + eeprom->len;
+
+ if (begin < PAGE_DATA_LEN) {
+ status = be_cmd_read_port_transceiver_data(adapter, TR_PAGE_A0, begin,
+ min_t(u32, end, PAGE_DATA_LEN) - begin,
+ data);
+ if (status)
+ goto err;
+
+ data += PAGE_DATA_LEN - begin;
+ begin = PAGE_DATA_LEN;
+ }
- if (eeprom->offset + eeprom->len > PAGE_DATA_LEN) {
- status = be_cmd_read_port_transceiver_data(adapter,
- TR_PAGE_A2,
- data +
- PAGE_DATA_LEN);
+ if (end > PAGE_DATA_LEN) {
+ status = be_cmd_read_port_transceiver_data(adapter, TR_PAGE_A2,
+ begin - PAGE_DATA_LEN,
+ end - begin, data);
if (status)
goto err;
}
- if (eeprom->offset)
- memcpy(data, data + eeprom->offset, eeprom->len);
err:
return be_cmd_status(status);
}
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index e5566c121525..9b12bb3b7781 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -217,6 +217,9 @@ static void dwmac4_map_mtl_dma(struct mac_device_info *hw, u32 queue, u32 chan)
if (queue == 0 || queue == 4) {
value &= ~MTL_RXQ_DMA_Q04MDMACH_MASK;
value |= MTL_RXQ_DMA_Q04MDMACH(chan);
+ } else if (queue > 4) {
+ value &= ~MTL_RXQ_DMA_QXMDMACH_MASK(queue - 4);
+ value |= MTL_RXQ_DMA_QXMDMACH(chan, queue - 4);
} else {
value &= ~MTL_RXQ_DMA_QXMDMACH_MASK(queue);
value |= MTL_RXQ_DMA_QXMDMACH(chan, queue);
diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 8a48df80b59a..6d68f9799ada 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -1707,7 +1707,7 @@ static const struct driver_info ax88179_info = {
.link_reset = ax88179_link_reset,
.reset = ax88179_reset,
.stop = ax88179_stop,
- .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
.rx_fixup = ax88179_rx_fixup,
.tx_fixup = ax88179_tx_fixup,
};
@@ -1720,7 +1720,7 @@ static const struct driver_info ax88178a_info = {
.link_reset = ax88179_link_reset,
.reset = ax88179_reset,
.stop = ax88179_stop,
- .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
.rx_fixup = ax88179_rx_fixup,
.tx_fixup = ax88179_tx_fixup,
};
@@ -1733,7 +1733,7 @@ static const struct driver_info cypress_GX3_info = {
.link_reset = ax88179_link_reset,
.reset = ax88179_reset,
.stop = ax88179_stop,
- .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
.rx_fixup = ax88179_rx_fixup,
.tx_fixup = ax88179_tx_fixup,
};
@@ -1746,7 +1746,7 @@ static const struct driver_info dlink_dub1312_info = {
.link_reset = ax88179_link_reset,
.reset = ax88179_reset,
.stop = ax88179_stop,
- .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
.rx_fixup = ax88179_rx_fixup,
.tx_fixup = ax88179_tx_fixup,
};
@@ -1759,7 +1759,7 @@ static const struct driver_info sitecom_info = {
.link_reset = ax88179_link_reset,
.reset = ax88179_reset,
.stop = ax88179_stop,
- .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
.rx_fixup = ax88179_rx_fixup,
.tx_fixup = ax88179_tx_fixup,
};
@@ -1772,7 +1772,7 @@ static const struct driver_info samsung_info = {
.link_reset = ax88179_link_reset,
.reset = ax88179_reset,
.stop = ax88179_stop,
- .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
.rx_fixup = ax88179_rx_fixup,
.tx_fixup = ax88179_tx_fixup,
};
@@ -1785,7 +1785,7 @@ static const struct driver_info lenovo_info = {
.link_reset = ax88179_link_reset,
.reset = ax88179_reset,
.stop = ax88179_stop,
- .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
.rx_fixup = ax88179_rx_fixup,
.tx_fixup = ax88179_tx_fixup,
};
@@ -1798,7 +1798,7 @@ static const struct driver_info belkin_info = {
.link_reset = ax88179_link_reset,
.reset = ax88179_reset,
.stop = ax88179_stop,
- .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP,
.rx_fixup = ax88179_rx_fixup,
.tx_fixup = ax88179_tx_fixup,
};
diff --git a/drivers/pci/host/pci-hyperv.c b/drivers/pci/host/pci-hyperv.c
index 70825689e5a0..7c872f71459c 100644
--- a/drivers/pci/host/pci-hyperv.c
+++ b/drivers/pci/host/pci-hyperv.c
@@ -846,6 +846,11 @@ static void hv_int_desc_free(struct hv_pci_dev *hpdev,
u8 buffer[sizeof(struct pci_delete_interrupt)];
} ctxt;
+ if (!int_desc->vector_count) {
+ kfree(int_desc);
+ return;
+ }
+
memset(&ctxt, 0, sizeof(ctxt));
int_pkt = (struct pci_delete_interrupt *)&ctxt.pkt.message;
int_pkt->message_type.type =
@@ -908,6 +913,28 @@ static void hv_irq_mask(struct irq_data *data)
pci_msi_mask_irq(data);
}
+static unsigned int hv_msi_get_int_vector(struct irq_data *data)
+{
+ struct irq_cfg *cfg = irqd_cfg(data);
+
+ return cfg->vector;
+}
+
+static int hv_msi_prepare(struct irq_domain *domain, struct device *dev,
+ int nvec, msi_alloc_info_t *info)
+{
+ int ret = pci_msi_prepare(domain, dev, nvec, info);
+
+ /*
+ * By using the interrupt remapper in the hypervisor IOMMU, contiguous
+ * CPU vectors is not needed for multi-MSI
+ */
+ if (info->type == X86_IRQ_ALLOC_TYPE_MSI)
+ info->flags &= ~X86_IRQ_ALLOC_CONTIGUOUS_VECTORS;
+
+ return ret;
+}
+
/**
* hv_irq_unmask() - "Unmask" the IRQ by setting its current
* affinity.
@@ -923,6 +950,7 @@ static void hv_irq_unmask(struct irq_data *data)
struct msi_desc *msi_desc = irq_data_get_msi_desc(data);
struct irq_cfg *cfg = irqd_cfg(data);
struct retarget_msi_interrupt *params;
+ struct tran_int_desc *int_desc;
struct hv_pcibus_device *hbus;
struct cpumask *dest;
struct pci_bus *pbus;
@@ -937,6 +965,7 @@ static void hv_irq_unmask(struct irq_data *data)
pdev = msi_desc_to_pci_dev(msi_desc);
pbus = pdev->bus;
hbus = container_of(pbus->sysdata, struct hv_pcibus_device, sysdata);
+ int_desc = data->chip_data;
spin_lock_irqsave(&hbus->retarget_msi_interrupt_lock, flags);
@@ -944,8 +973,8 @@ static void hv_irq_unmask(struct irq_data *data)
memset(params, 0, sizeof(*params));
params->partition_id = HV_PARTITION_ID_SELF;
params->int_entry.source = 1; /* MSI(-X) */
- params->int_entry.address = msi_desc->msg.address_lo;
- params->int_entry.data = msi_desc->msg.data;
+ params->int_entry.address = int_desc->address & 0xffffffff;
+ params->int_entry.data = int_desc->data;
params->device_id = (hbus->hdev->dev_instance.b[5] << 24) |
(hbus->hdev->dev_instance.b[4] << 16) |
(hbus->hdev->dev_instance.b[7] << 8) |
@@ -1033,12 +1062,12 @@ static void hv_pci_compose_compl(void *context, struct pci_response *resp,
static u32 hv_compose_msi_req_v1(
struct pci_create_interrupt *int_pkt, struct cpumask *affinity,
- u32 slot, u8 vector)
+ u32 slot, u8 vector, u8 vector_count)
{
int_pkt->message_type.type = PCI_CREATE_INTERRUPT_MESSAGE;
int_pkt->wslot.slot = slot;
int_pkt->int_desc.vector = vector;
- int_pkt->int_desc.vector_count = 1;
+ int_pkt->int_desc.vector_count = vector_count;
int_pkt->int_desc.delivery_mode =
(apic->irq_delivery_mode == dest_LowestPrio) ?
dest_LowestPrio : dest_Fixed;
@@ -1054,14 +1083,14 @@ static u32 hv_compose_msi_req_v1(
static u32 hv_compose_msi_req_v2(
struct pci_create_interrupt2 *int_pkt, struct cpumask *affinity,
- u32 slot, u8 vector)
+ u32 slot, u8 vector, u8 vector_count)
{
int cpu;
int_pkt->message_type.type = PCI_CREATE_INTERRUPT_MESSAGE2;
int_pkt->wslot.slot = slot;
int_pkt->int_desc.vector = vector;
- int_pkt->int_desc.vector_count = 1;
+ int_pkt->int_desc.vector_count = vector_count;
int_pkt->int_desc.delivery_mode =
(apic->irq_delivery_mode == dest_LowestPrio) ?
dest_LowestPrio : dest_Fixed;
@@ -1091,7 +1120,6 @@ static u32 hv_compose_msi_req_v2(
*/
static void hv_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
{
- struct irq_cfg *cfg = irqd_cfg(data);
struct hv_pcibus_device *hbus;
struct hv_pci_dev *hpdev;
struct pci_bus *pbus;
@@ -1100,6 +1128,8 @@ static void hv_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
unsigned long flags;
struct compose_comp_ctxt comp;
struct tran_int_desc *int_desc;
+ struct msi_desc *msi_desc;
+ u8 vector, vector_count;
struct {
struct pci_packet pci_pkt;
union {
@@ -1111,7 +1141,17 @@ static void hv_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
u32 size;
int ret;
- pdev = msi_desc_to_pci_dev(irq_data_get_msi_desc(data));
+ /* Reuse the previous allocation */
+ if (data->chip_data) {
+ int_desc = data->chip_data;
+ msg->address_hi = int_desc->address >> 32;
+ msg->address_lo = int_desc->address & 0xffffffff;
+ msg->data = int_desc->data;
+ return;
+ }
+
+ msi_desc = irq_data_get_msi_desc(data);
+ pdev = msi_desc_to_pci_dev(msi_desc);
dest = irq_data_get_effective_affinity_mask(data);
pbus = pdev->bus;
hbus = container_of(pbus->sysdata, struct hv_pcibus_device, sysdata);
@@ -1119,17 +1159,40 @@ static void hv_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
if (!hpdev)
goto return_null_message;
- /* Free any previous message that might have already been composed. */
- if (data->chip_data) {
- int_desc = data->chip_data;
- data->chip_data = NULL;
- hv_int_desc_free(hpdev, int_desc);
- }
-
int_desc = kzalloc(sizeof(*int_desc), GFP_ATOMIC);
if (!int_desc)
goto drop_reference;
+ if (!msi_desc->msi_attrib.is_msix && msi_desc->nvec_used > 1) {
+ /*
+ * If this is not the first MSI of Multi MSI, we already have
+ * a mapping. Can exit early.
+ */
+ if (msi_desc->irq != data->irq) {
+ data->chip_data = int_desc;
+ int_desc->address = msi_desc->msg.address_lo |
+ (u64)msi_desc->msg.address_hi << 32;
+ int_desc->data = msi_desc->msg.data +
+ (data->irq - msi_desc->irq);
+ msg->address_hi = msi_desc->msg.address_hi;
+ msg->address_lo = msi_desc->msg.address_lo;
+ msg->data = int_desc->data;
+ put_pcichild(hpdev, hv_pcidev_ref_by_slot);
+ return;
+ }
+ /*
+ * The vector we select here is a dummy value. The correct
+ * value gets sent to the hypervisor in unmask(). This needs
+ * to be aligned with the count, and also not zero. Multi-msi
+ * is powers of 2 up to 32, so 32 will always work here.
+ */
+ vector = 32;
+ vector_count = msi_desc->nvec_used;
+ } else {
+ vector = hv_msi_get_int_vector(data);
+ vector_count = 1;
+ }
+
memset(&ctxt, 0, sizeof(ctxt));
init_completion(&comp.comp_pkt.host_event);
ctxt.pci_pkt.completion_func = hv_pci_compose_compl;
@@ -1140,14 +1203,16 @@ static void hv_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
size = hv_compose_msi_req_v1(&ctxt.int_pkts.v1,
dest,
hpdev->desc.win_slot.slot,
- cfg->vector);
+ vector,
+ vector_count);
break;
case PCI_PROTOCOL_VERSION_1_2:
size = hv_compose_msi_req_v2(&ctxt.int_pkts.v2,
dest,
hpdev->desc.win_slot.slot,
- cfg->vector);
+ vector,
+ vector_count);
break;
default:
@@ -1259,7 +1324,7 @@ static irq_hw_number_t hv_msi_domain_ops_get_hwirq(struct msi_domain_info *info,
static struct msi_domain_ops hv_msi_ops = {
.get_hwirq = hv_msi_domain_ops_get_hwirq,
- .msi_prepare = pci_msi_prepare,
+ .msi_prepare = hv_msi_prepare,
.set_desc = pci_msi_set_desc,
.msi_free = hv_msi_free,
};
diff --git a/drivers/power/reset/arm-versatile-reboot.c b/drivers/power/reset/arm-versatile-reboot.c
index 06d34ab47df5..8022c782f6ff 100644
--- a/drivers/power/reset/arm-versatile-reboot.c
+++ b/drivers/power/reset/arm-versatile-reboot.c
@@ -150,6 +150,7 @@ static int __init versatile_reboot_probe(void)
versatile_reboot_type = (enum versatile_reboot)reboot_id->data;
syscon_regmap = syscon_node_to_regmap(np);
+ of_node_put(np);
if (IS_ERR(syscon_regmap))
return PTR_ERR(syscon_regmap);
diff --git a/drivers/s390/char/keyboard.h b/drivers/s390/char/keyboard.h
index a074d9711628..9b16eae28486 100644
--- a/drivers/s390/char/keyboard.h
+++ b/drivers/s390/char/keyboard.h
@@ -45,7 +45,7 @@ static inline void
kbd_put_queue(struct tty_port *port, int ch)
{
tty_insert_flip_char(port, ch, 0);
- tty_schedule_flip(port);
+ tty_flip_buffer_push(port);
}
static inline void
@@ -53,5 +53,5 @@ kbd_puts_queue(struct tty_port *port, char *cp)
{
while (*cp)
tty_insert_flip_char(port, *cp++, 0);
- tty_schedule_flip(port);
+ tty_flip_buffer_push(port);
}
diff --git a/drivers/staging/speakup/spk_ttyio.c b/drivers/staging/speakup/spk_ttyio.c
index 5aae06bc6fe3..653f7a716181 100644
--- a/drivers/staging/speakup/spk_ttyio.c
+++ b/drivers/staging/speakup/spk_ttyio.c
@@ -87,7 +87,7 @@ static int spk_ttyio_receive_buf2(struct tty_struct *tty,
}
if (!ldisc_data->buf_free)
- /* ttyio_in will tty_schedule_flip */
+ /* ttyio_in will tty_flip_buffer_push */
return 0;
/* Make sure the consumer has read buf before we have seen
@@ -299,7 +299,7 @@ static unsigned char ttyio_in(int timeout)
mb();
ldisc_data->buf_free = true;
/* Let TTY push more characters */
- tty_schedule_flip(speakup_tty->port);
+ tty_flip_buffer_push(speakup_tty->port);
return rv;
}
diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
index d272bc4e7fb5..d84214bd7176 100644
--- a/drivers/tty/cyclades.c
+++ b/drivers/tty/cyclades.c
@@ -556,7 +556,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
}
info->idle_stats.recv_idle = jiffies;
}
- tty_schedule_flip(port);
+ tty_flip_buffer_push(port);
/* end of service */
cyy_writeb(info, CyRIR, save_xir & 0x3f);
@@ -998,7 +998,7 @@ static void cyz_handle_rx(struct cyclades_port *info)
jiffies + 1);
#endif
info->idle_stats.recv_idle = jiffies;
- tty_schedule_flip(&info->port);
+ tty_flip_buffer_push(&info->port);
/* Update rx_get */
cy_writel(&buf_ctrl->rx_get, new_rx_get);
@@ -1174,7 +1174,7 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
if (delta_count)
wake_up_interruptible(&info->port.delta_msr_wait);
if (special_count)
- tty_schedule_flip(&info->port);
+ tty_flip_buffer_push(&info->port);
}
}
diff --git a/drivers/tty/goldfish.c b/drivers/tty/goldfish.c
index 9f0b6b185be7..d160df73d9fd 100644
--- a/drivers/tty/goldfish.c
+++ b/drivers/tty/goldfish.c
@@ -159,7 +159,7 @@ static irqreturn_t goldfish_tty_interrupt(int irq, void *dev_id)
address = (unsigned long)(void *)buf;
goldfish_tty_rw(qtty, address, count, 0);
- tty_schedule_flip(&qtty->port);
+ tty_flip_buffer_push(&qtty->port);
return IRQ_HANDLED;
}
diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
index 7f3d4cb0341b..e69494e5361c 100644
--- a/drivers/tty/moxa.c
+++ b/drivers/tty/moxa.c
@@ -1397,7 +1397,7 @@ static int moxa_poll_port(struct moxa_port *p, unsigned int handle,
if (inited && !tty_throttled(tty) &&
MoxaPortRxQueue(p) > 0) { /* RX */
MoxaPortReadData(p);
- tty_schedule_flip(&p->port);
+ tty_flip_buffer_push(&p->port);
}
} else {
clear_bit(EMPTYWAIT, &p->statusflags);
@@ -1422,7 +1422,7 @@ static int moxa_poll_port(struct moxa_port *p, unsigned int handle,
if (tty && (intr & IntrBreak) && !I_IGNBRK(tty)) { /* BREAK */
tty_insert_flip_char(&p->port, 0, TTY_BREAK);
- tty_schedule_flip(&p->port);
+ tty_flip_buffer_push(&p->port);
}
if (intr & IntrLine)
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index bca47176db4c..467f401abd29 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -111,21 +111,11 @@ static void pty_unthrottle(struct tty_struct *tty)
static int pty_write(struct tty_struct *tty, const unsigned char *buf, int c)
{
struct tty_struct *to = tty->link;
- unsigned long flags;
- if (tty->stopped)
+ if (tty->stopped || !c)
return 0;
- if (c > 0) {
- spin_lock_irqsave(&to->port->lock, flags);
- /* Stuff the data into the input queue of the other end */
- c = tty_insert_flip_string(to->port, buf, c);
- spin_unlock_irqrestore(&to->port->lock, flags);
- /* And shovel */
- if (c)
- tty_flip_buffer_push(to->port);
- }
- return c;
+ return tty_insert_flip_string_and_push_buffer(to->port, buf, c);
}
/**
diff --git a/drivers/tty/serial/lpc32xx_hs.c b/drivers/tty/serial/lpc32xx_hs.c
index cea57ff32c33..9bbe2d093a6c 100644
--- a/drivers/tty/serial/lpc32xx_hs.c
+++ b/drivers/tty/serial/lpc32xx_hs.c
@@ -350,7 +350,7 @@ static irqreturn_t serial_lpc32xx_interrupt(int irq, void *dev_id)
LPC32XX_HSUART_IIR(port->membase));
port->icount.overrun++;
tty_insert_flip_char(tport, 0, TTY_OVERRUN);
- tty_schedule_flip(tport);
+ tty_flip_buffer_push(tport);
}
/* Data received? */
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index 608769f6a564..979dfea8041d 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -388,27 +388,6 @@ int __tty_insert_flip_char(struct tty_port *port, unsigned char ch, char flag)
}
EXPORT_SYMBOL(__tty_insert_flip_char);
-/**
- * tty_schedule_flip - push characters to ldisc
- * @port: tty port to push from
- *
- * Takes any pending buffers and transfers their ownership to the
- * ldisc side of the queue. It then schedules those characters for
- * processing by the line discipline.
- */
-
-void tty_schedule_flip(struct tty_port *port)
-{
- struct tty_bufhead *buf = &port->buf;
-
- /* paired w/ acquire in flush_to_ldisc(); ensures
- * flush_to_ldisc() sees buffer data.
- */
- smp_store_release(&buf->tail->commit, buf->tail->used);
- queue_work(system_unbound_wq, &buf->work);
-}
-EXPORT_SYMBOL(tty_schedule_flip);
-
/**
* tty_prepare_flip_string - make room for characters
* @port: tty port
@@ -538,6 +517,15 @@ static void flush_to_ldisc(struct work_struct *work)
}
+static inline void tty_flip_buffer_commit(struct tty_buffer *tail)
+{
+ /*
+ * Paired w/ acquire in flush_to_ldisc(); ensures flush_to_ldisc() sees
+ * buffer data.
+ */
+ smp_store_release(&tail->commit, tail->used);
+}
+
/**
* tty_flip_buffer_push - terminal
* @port: tty port to push
@@ -551,10 +539,44 @@ static void flush_to_ldisc(struct work_struct *work)
void tty_flip_buffer_push(struct tty_port *port)
{
- tty_schedule_flip(port);
+ struct tty_bufhead *buf = &port->buf;
+
+ tty_flip_buffer_commit(buf->tail);
+ queue_work(system_unbound_wq, &buf->work);
}
EXPORT_SYMBOL(tty_flip_buffer_push);
+/**
+ * tty_insert_flip_string_and_push_buffer - add characters to the tty buffer and
+ * push
+ * @port: tty port
+ * @chars: characters
+ * @size: size
+ *
+ * The function combines tty_insert_flip_string() and tty_flip_buffer_push()
+ * with the exception of properly holding the @port->lock.
+ *
+ * To be used only internally (by pty currently).
+ *
+ * Returns: the number added.
+ */
+int tty_insert_flip_string_and_push_buffer(struct tty_port *port,
+ const unsigned char *chars, size_t size)
+{
+ struct tty_bufhead *buf = &port->buf;
+ unsigned long flags;
+
+ spin_lock_irqsave(&port->lock, flags);
+ size = tty_insert_flip_string(port, chars, size);
+ if (size)
+ tty_flip_buffer_commit(buf->tail);
+ spin_unlock_irqrestore(&port->lock, flags);
+
+ queue_work(system_unbound_wq, &buf->work);
+
+ return size;
+}
+
/**
* tty_buffer_init - prepare a tty buffer structure
* @tty: tty to initialise
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index aff07929e8e6..20befbbdda3b 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -309,7 +309,7 @@ int kbd_rate(struct kbd_repeat *rpt)
static void put_queue(struct vc_data *vc, int ch)
{
tty_insert_flip_char(&vc->port, ch, 0);
- tty_schedule_flip(&vc->port);
+ tty_flip_buffer_push(&vc->port);
}
static void puts_queue(struct vc_data *vc, char *cp)
@@ -318,7 +318,7 @@ static void puts_queue(struct vc_data *vc, char *cp)
tty_insert_flip_char(&vc->port, *cp, 0);
cp++;
}
- tty_schedule_flip(&vc->port);
+ tty_flip_buffer_push(&vc->port);
}
static void applkey(struct vc_data *vc, int key, char mode)
@@ -563,7 +563,7 @@ static void fn_inc_console(struct vc_data *vc)
static void fn_send_intr(struct vc_data *vc)
{
tty_insert_flip_char(&vc->port, 0, TTY_BREAK);
- tty_schedule_flip(&vc->port);
+ tty_flip_buffer_push(&vc->port);
}
static void fn_scroll_forw(struct vc_data *vc)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index cd4947a72a6c..8ac775852b82 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1482,7 +1482,7 @@ static void respond_string(const char *p, struct tty_port *port)
tty_insert_flip_char(port, *p, 0);
p++;
}
- tty_schedule_flip(port);
+ tty_flip_buffer_push(port);
}
static void cursor_report(struct vc_data *vc, struct tty_struct *tty)
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 2827015604fb..799173755b78 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -393,7 +393,8 @@ static void __unmap_grant_pages_done(int result,
unsigned int offset = data->unmap_ops - map->unmap_ops;
for (i = 0; i < data->count; i++) {
- WARN_ON(map->unmap_ops[offset+i].status);
+ WARN_ON(map->unmap_ops[offset+i].status &&
+ map->unmap_ops[offset+i].handle != -1);
pr_debug("unmap handle=%d st=%d\n",
map->unmap_ops[offset+i].handle,
map->unmap_ops[offset+i].status);
diff --git a/include/linux/tty_flip.h b/include/linux/tty_flip.h
index 767f62086bd9..c326bfdb5ec2 100644
--- a/include/linux/tty_flip.h
+++ b/include/linux/tty_flip.h
@@ -12,7 +12,6 @@ extern int tty_insert_flip_string_fixed_flag(struct tty_port *port,
extern int tty_prepare_flip_string(struct tty_port *port,
unsigned char **chars, size_t size);
extern void tty_flip_buffer_push(struct tty_port *port);
-void tty_schedule_flip(struct tty_port *port);
int __tty_insert_flip_char(struct tty_port *port, unsigned char ch, char flag);
static inline int tty_insert_flip_char(struct tty_port *port,
@@ -40,4 +39,7 @@ static inline int tty_insert_flip_string(struct tty_port *port,
extern void tty_buffer_lock_exclusive(struct tty_port *port);
extern void tty_buffer_unlock_exclusive(struct tty_port *port);
+int tty_insert_flip_string_and_push_buffer(struct tty_port *port,
+ const unsigned char *chars, size_t cnt);
+
#endif /* _LINUX_TTY_FLIP_H */
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 2e1d36b33db7..8e694cb464c1 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -367,6 +367,71 @@ static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk,
return NULL;
}
+/* Shall not be called with lock_sock held */
+static inline struct sk_buff *bt_skb_sendmsg(struct sock *sk,
+ struct msghdr *msg,
+ size_t len, size_t mtu,
+ size_t headroom, size_t tailroom)
+{
+ struct sk_buff *skb;
+ size_t size = min_t(size_t, len, mtu);
+ int err;
+
+ skb = bt_skb_send_alloc(sk, size + headroom + tailroom,
+ msg->msg_flags & MSG_DONTWAIT, &err);
+ if (!skb)
+ return ERR_PTR(err);
+
+ skb_reserve(skb, headroom);
+ skb_tailroom_reserve(skb, mtu, tailroom);
+
+ if (!copy_from_iter_full(skb_put(skb, size), size, &msg->msg_iter)) {
+ kfree_skb(skb);
+ return ERR_PTR(-EFAULT);
+ }
+
+ skb->priority = sk->sk_priority;
+
+ return skb;
+}
+
+/* Similar to bt_skb_sendmsg but can split the msg into multiple fragments
+ * accourding to the MTU.
+ */
+static inline struct sk_buff *bt_skb_sendmmsg(struct sock *sk,
+ struct msghdr *msg,
+ size_t len, size_t mtu,
+ size_t headroom, size_t tailroom)
+{
+ struct sk_buff *skb, **frag;
+
+ skb = bt_skb_sendmsg(sk, msg, len, mtu, headroom, tailroom);
+ if (IS_ERR_OR_NULL(skb))
+ return skb;
+
+ len -= skb->len;
+ if (!len)
+ return skb;
+
+ /* Add remaining data over MTU as continuation fragments */
+ frag = &skb_shinfo(skb)->frag_list;
+ while (len) {
+ struct sk_buff *tmp;
+
+ tmp = bt_skb_sendmsg(sk, msg, len, mtu, headroom, tailroom);
+ if (IS_ERR(tmp)) {
+ return skb;
+ }
+
+ len -= tmp->len;
+
+ *frag = tmp;
+ frag = &(*frag)->next;
+ }
+
+ return skb;
+}
+
int bt_to_errno(u16 code);
void hci_sock_set_flag(struct sock *sk, int nr);
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 16a1492a5bd3..f279d72273f6 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -110,7 +110,8 @@ static inline struct inet_request_sock *inet_rsk(const struct request_sock *sk)
static inline u32 inet_request_mark(const struct sock *sk, struct sk_buff *skb)
{
- if (!sk->sk_mark && sock_net(sk)->ipv4.sysctl_tcp_fwmark_accept)
+ if (!sk->sk_mark &&
+ READ_ONCE(sock_net(sk)->ipv4.sysctl_tcp_fwmark_accept))
return skb->mark;
return sk->sk_mark;
diff --git a/include/net/ip.h b/include/net/ip.h
index 4aff48d6ba91..2a92a5f4f9b3 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -305,7 +305,7 @@ void ipfrag_init(void);
void ip_static_sysctl_init(void);
#define IP4_REPLY_MARK(net, mark) \
- ((net)->ipv4.sysctl_fwmark_reflect ? (mark) : 0)
+ (READ_ONCE((net)->ipv4.sysctl_fwmark_reflect) ? (mark) : 0)
static inline bool ip_is_fragment(const struct iphdr *iph)
{
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 181db7dab176..5e719f9d60fd 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1882,7 +1882,7 @@ void __tcp_v4_send_check(struct sk_buff *skb, __be32 saddr, __be32 daddr);
static inline u32 tcp_notsent_lowat(const struct tcp_sock *tp)
{
struct net *net = sock_net((struct sock *)tp);
- return tp->notsent_lowat ?: net->ipv4.sysctl_tcp_notsent_lowat;
+ return tp->notsent_lowat ?: READ_ONCE(net->ipv4.sysctl_tcp_notsent_lowat);
}
static inline bool tcp_stream_memory_free(const struct sock *sk)
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 220c43a085e4..5d649983de07 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -64,11 +64,13 @@ void *bpf_internal_load_pointer_neg_helper(const struct sk_buff *skb, int k, uns
{
u8 *ptr = NULL;
- if (k >= SKF_NET_OFF)
+ if (k >= SKF_NET_OFF) {
ptr = skb_network_header(skb) + k - SKF_NET_OFF;
- else if (k >= SKF_LL_OFF)
+ } else if (k >= SKF_LL_OFF) {
+ if (unlikely(!skb_mac_header_was_set(skb)))
+ return NULL;
ptr = skb_mac_header(skb) + k - SKF_LL_OFF;
-
+ }
if (ptr >= skb->head && ptr + size <= skb_tail_pointer(skb))
return ptr;
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 93e21e319d70..2ad8acff03db 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5429,10 +5429,10 @@ static int perf_mmap(struct file *file, struct vm_area_struct *vma)
if (!atomic_inc_not_zero(&event->rb->mmap_count)) {
/*
- * Raced against perf_mmap_close() through
- * perf_event_set_output(). Try again, hope for better
- * luck.
+ * Raced against perf_mmap_close(); remove the
+ * event and try again.
*/
+ ring_buffer_attach(event, NULL);
mutex_unlock(&event->mmap_mutex);
goto again;
}
@@ -9859,14 +9859,25 @@ static int perf_copy_attr(struct perf_event_attr __user *uattr,
goto out;
}
+static void mutex_lock_double(struct mutex *a, struct mutex *b)
+{
+ if (b < a)
+ swap(a, b);
+
+ mutex_lock(a);
+ mutex_lock_nested(b, SINGLE_DEPTH_NESTING);
+}
+
static int
perf_event_set_output(struct perf_event *event, struct perf_event *output_event)
{
struct ring_buffer *rb = NULL;
int ret = -EINVAL;
- if (!output_event)
+ if (!output_event) {
+ mutex_lock(&event->mmap_mutex);
goto set;
+ }
/* don't allow circular references */
if (event == output_event)
@@ -9904,8 +9915,15 @@ perf_event_set_output(struct perf_event *event, struct perf_event *output_event)
event->pmu != output_event->pmu)
goto out;
+ /*
+ * Hold both mmap_mutex to serialize against perf_mmap_close(). Since
+ * output_event is already on rb->event_list, and the list iteration
+ * restarts after every removal, it is guaranteed this new event is
+ * observed *OR* if output_event is already removed, it's guaranteed we
+ * observe !rb->mmap_count.
+ */
+ mutex_lock_double(&event->mmap_mutex, &output_event->mmap_mutex);
set:
- mutex_lock(&event->mmap_mutex);
/* Can't redirect output if we've got an active mmap() */
if (atomic_read(&event->mmap_count))
goto unlock;
@@ -9915,6 +9933,12 @@ perf_event_set_output(struct perf_event *event, struct perf_event *output_event)
rb = ring_buffer_get(output_event);
if (!rb)
goto unlock;
+
+ /* did we race against perf_mmap_close() */
+ if (!atomic_read(&rb->mmap_count)) {
+ ring_buffer_put(rb);
+ goto unlock;
+ }
}
ring_buffer_attach(event, rb);
@@ -9922,20 +9946,13 @@ perf_event_set_output(struct perf_event *event, struct perf_event *output_event)
ret = 0;
unlock:
mutex_unlock(&event->mmap_mutex);
+ if (output_event)
+ mutex_unlock(&output_event->mmap_mutex);
out:
return ret;
}
-static void mutex_lock_double(struct mutex *a, struct mutex *b)
-{
- if (b < a)
- swap(a, b);
-
- mutex_lock(a);
- mutex_lock_nested(b, SINGLE_DEPTH_NESTING);
-}
-
static int perf_event_set_clock(struct perf_event *event, clockid_t clk_id)
{
bool nmi_safe = false;
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 5a6bfadef40e..aa2a88c09621 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -347,7 +347,7 @@ static void mpol_rebind_preferred(struct mempolicy *pol,
*/
static void mpol_rebind_policy(struct mempolicy *pol, const nodemask_t *newmask)
{
- if (!pol)
+ if (!pol || pol->mode == MPOL_LOCAL)
return;
if (!mpol_store_user_nodemask(pol) && !(pol->flags & MPOL_F_LOCAL) &&
nodes_equal(pol->w.cpuset_mems_allowed, *newmask))
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 4a0b41d75c84..3f7d042a09b4 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -552,22 +552,58 @@ struct rfcomm_dlc *rfcomm_dlc_exists(bdaddr_t *src, bdaddr_t *dst, u8 channel)
return dlc;
}
+static int rfcomm_dlc_send_frag(struct rfcomm_dlc *d, struct sk_buff *frag)
+{
+ int len = frag->len;
+
+ BT_DBG("dlc %p mtu %d len %d", d, d->mtu, len);
+
+ if (len > d->mtu)
+ return -EINVAL;
+
+ rfcomm_make_uih(frag, d->addr);
+ __skb_queue_tail(&d->tx_queue, frag);
+
+ return len;
+}
+
int rfcomm_dlc_send(struct rfcomm_dlc *d, struct sk_buff *skb)
{
- int len = skb->len;
+ unsigned long flags;
+ struct sk_buff *frag, *next;
+ int len;
if (d->state != BT_CONNECTED)
return -ENOTCONN;
- BT_DBG("dlc %p mtu %d len %d", d, d->mtu, len);
+ frag = skb_shinfo(skb)->frag_list;
+ skb_shinfo(skb)->frag_list = NULL;
- if (len > d->mtu)
- return -EINVAL;
+ /* Queue all fragments atomically. */
+ spin_lock_irqsave(&d->tx_queue.lock, flags);
- rfcomm_make_uih(skb, d->addr);
- skb_queue_tail(&d->tx_queue, skb);
+ len = rfcomm_dlc_send_frag(d, skb);
+ if (len < 0 || !frag)
+ goto unlock;
+
+ for (; frag; frag = next) {
+ int ret;
+
+ next = frag->next;
+
+ ret = rfcomm_dlc_send_frag(d, frag);
+ if (ret < 0) {
+ kfree_skb(frag);
+ goto unlock;
+ }
+
+ len += ret;
+ }
+
+unlock:
+ spin_unlock_irqrestore(&d->tx_queue.lock, flags);
- if (!test_bit(RFCOMM_TX_THROTTLED, &d->flags))
+ if (len > 0 && !test_bit(RFCOMM_TX_THROTTLED, &d->flags))
rfcomm_schedule();
return len;
}
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 8fcd9130439d..eeff89e8ad4c 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -578,46 +578,20 @@ static int rfcomm_sock_sendmsg(struct socket *sock, struct msghdr *msg,
lock_sock(sk);
sent = bt_sock_wait_ready(sk, msg->msg_flags);
- if (sent)
- goto done;
-
- while (len) {
- size_t size = min_t(size_t, len, d->mtu);
- int err;
-
- skb = sock_alloc_send_skb(sk, size + RFCOMM_SKB_RESERVE,
- msg->msg_flags & MSG_DONTWAIT, &err);
- if (!skb) {
- if (sent == 0)
- sent = err;
- break;
- }
- skb_reserve(skb, RFCOMM_SKB_HEAD_RESERVE);
-
- err = memcpy_from_msg(skb_put(skb, size), msg, size);
- if (err) {
- kfree_skb(skb);
- if (sent == 0)
- sent = err;
- break;
- }
- skb->priority = sk->sk_priority;
+ release_sock(sk);
- err = rfcomm_dlc_send(d, skb);
- if (err < 0) {
- kfree_skb(skb);
- if (sent == 0)
- sent = err;
- break;
- }
+ if (sent)
+ return sent;
- sent += size;
- len -= size;
- }
+ skb = bt_skb_sendmmsg(sk, msg, len, d->mtu, RFCOMM_SKB_HEAD_RESERVE,
+ RFCOMM_SKB_TAIL_RESERVE);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
-done:
- release_sock(sk);
+ sent = rfcomm_dlc_send(d, skb);
+ if (sent < 0)
+ kfree_skb(skb);
return sent;
}
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 22761a404e0d..b3dd396ca649 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -279,12 +279,10 @@ static int sco_connect(struct hci_dev *hdev, struct sock *sk)
return err;
}
-static int sco_send_frame(struct sock *sk, void *buf, int len,
- unsigned int msg_flags)
+static int sco_send_frame(struct sock *sk, struct sk_buff *skb)
{
struct sco_conn *conn = sco_pi(sk)->conn;
- struct sk_buff *skb;
- int err;
+ int len = skb->len;
/* Check outgoing MTU */
if (len > conn->mtu)
@@ -292,11 +290,6 @@ static int sco_send_frame(struct sock *sk, void *buf, int len,
BT_DBG("sk %p len %d", sk, len);
- skb = bt_skb_send_alloc(sk, len, msg_flags & MSG_DONTWAIT, &err);
- if (!skb)
- return err;
-
- memcpy(skb_put(skb, len), buf, len);
hci_send_sco(conn->hcon, skb);
return len;
@@ -716,7 +709,7 @@ static int sco_sock_sendmsg(struct socket *sock, struct msghdr *msg,
size_t len)
{
struct sock *sk = sock->sk;
- void *buf;
+ struct sk_buff *skb;
int err;
BT_DBG("sock %p, sk %p", sock, sk);
@@ -728,24 +721,21 @@ static int sco_sock_sendmsg(struct socket *sock, struct msghdr *msg,
if (msg->msg_flags & MSG_OOB)
return -EOPNOTSUPP;
- buf = kmalloc(len, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- if (memcpy_from_msg(buf, msg, len)) {
- kfree(buf);
- return -EFAULT;
- }
+ skb = bt_skb_sendmsg(sk, msg, len, len, 0, 0);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
lock_sock(sk);
if (sk->sk_state == BT_CONNECTED)
- err = sco_send_frame(sk, buf, len, msg->msg_flags);
+ err = sco_send_frame(sk, skb);
else
err = -ENOTCONN;
release_sock(sk);
- kfree(buf);
+
+ if (err < 0)
+ kfree_skb(skb);
return err;
}
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 16255dd0abf4..fd2c634eeee4 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -474,7 +474,8 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ip_mc_list *pmc,
if (pmc->multiaddr == IGMP_ALL_HOSTS)
return skb;
- if (ipv4_is_local_multicast(pmc->multiaddr) && !net->ipv4.sysctl_igmp_llm_reports)
+ if (ipv4_is_local_multicast(pmc->multiaddr) &&
+ !READ_ONCE(net->ipv4.sysctl_igmp_llm_reports))
return skb;
mtu = READ_ONCE(dev->mtu);
@@ -600,7 +601,7 @@ static int igmpv3_send_report(struct in_device *in_dev, struct ip_mc_list *pmc)
if (pmc->multiaddr == IGMP_ALL_HOSTS)
continue;
if (ipv4_is_local_multicast(pmc->multiaddr) &&
- !net->ipv4.sysctl_igmp_llm_reports)
+ !READ_ONCE(net->ipv4.sysctl_igmp_llm_reports))
continue;
spin_lock_bh(&pmc->lock);
if (pmc->sfcount[MCAST_EXCLUDE])
@@ -743,7 +744,8 @@ static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc,
if (type == IGMPV3_HOST_MEMBERSHIP_REPORT)
return igmpv3_send_report(in_dev, pmc);
- if (ipv4_is_local_multicast(group) && !net->ipv4.sysctl_igmp_llm_reports)
+ if (ipv4_is_local_multicast(group) &&
+ !READ_ONCE(net->ipv4.sysctl_igmp_llm_reports))
return 0;
if (type == IGMP_HOST_LEAVE_MESSAGE)
@@ -921,7 +923,8 @@ static bool igmp_heard_report(struct in_device *in_dev, __be32 group)
if (group == IGMP_ALL_HOSTS)
return false;
- if (ipv4_is_local_multicast(group) && !net->ipv4.sysctl_igmp_llm_reports)
+ if (ipv4_is_local_multicast(group) &&
+ !READ_ONCE(net->ipv4.sysctl_igmp_llm_reports))
return false;
rcu_read_lock();
@@ -1031,7 +1034,7 @@ static bool igmp_heard_query(struct in_device *in_dev, struct sk_buff *skb,
if (im->multiaddr == IGMP_ALL_HOSTS)
continue;
if (ipv4_is_local_multicast(im->multiaddr) &&
- !net->ipv4.sysctl_igmp_llm_reports)
+ !READ_ONCE(net->ipv4.sysctl_igmp_llm_reports))
continue;
spin_lock_bh(&im->lock);
if (im->tm_running)
@@ -1280,7 +1283,8 @@ static void igmp_group_dropped(struct ip_mc_list *im)
#ifdef CONFIG_IP_MULTICAST
if (im->multiaddr == IGMP_ALL_HOSTS)
return;
- if (ipv4_is_local_multicast(im->multiaddr) && !net->ipv4.sysctl_igmp_llm_reports)
+ if (ipv4_is_local_multicast(im->multiaddr) &&
+ !READ_ONCE(net->ipv4.sysctl_igmp_llm_reports))
return;
reporter = im->reporter;
@@ -1317,7 +1321,8 @@ static void igmp_group_added(struct ip_mc_list *im)
#ifdef CONFIG_IP_MULTICAST
if (im->multiaddr == IGMP_ALL_HOSTS)
return;
- if (ipv4_is_local_multicast(im->multiaddr) && !net->ipv4.sysctl_igmp_llm_reports)
+ if (ipv4_is_local_multicast(im->multiaddr) &&
+ !READ_ONCE(net->ipv4.sysctl_igmp_llm_reports))
return;
if (in_dev->dead)
@@ -1629,7 +1634,7 @@ static void ip_mc_rejoin_groups(struct in_device *in_dev)
if (im->multiaddr == IGMP_ALL_HOSTS)
continue;
if (ipv4_is_local_multicast(im->multiaddr) &&
- !net->ipv4.sysctl_igmp_llm_reports)
+ !READ_ONCE(net->ipv4.sysctl_igmp_llm_reports))
continue;
/* a failover is happening and switches
@@ -2174,7 +2179,7 @@ int ip_mc_join_group(struct sock *sk, struct ip_mreqn *imr)
count++;
}
err = -ENOBUFS;
- if (count >= net->ipv4.sysctl_igmp_max_memberships)
+ if (count >= READ_ONCE(net->ipv4.sysctl_igmp_max_memberships))
goto done;
iml = sock_kmalloc(sk, sizeof(*iml), GFP_KERNEL);
if (!iml)
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index a231993c81c4..5e9b7dfd9d2d 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2005,7 +2005,7 @@ static inline void tcp_mtu_check_reprobe(struct sock *sk)
u32 interval;
s32 delta;
- interval = net->ipv4.sysctl_tcp_probe_interval;
+ interval = READ_ONCE(net->ipv4.sysctl_tcp_probe_interval);
delta = tcp_jiffies32 - icsk->icsk_mtup.probe_timestamp;
if (unlikely(delta >= interval * HZ)) {
int mss = tcp_current_mss(sk);
@@ -2087,7 +2087,7 @@ static int tcp_mtu_probe(struct sock *sk)
* probing process by not resetting search range to its orignal.
*/
if (probe_size > tcp_mtu_to_mss(sk, icsk->icsk_mtup.search_high) ||
- interval < net->ipv4.sysctl_tcp_probe_threshold) {
+ interval < READ_ONCE(net->ipv4.sysctl_tcp_probe_threshold)) {
/* Check whether enough time has elaplased for
* another round of probing.
*/
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index d87121d61a2b..e1840f70c0ff 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1673,8 +1673,10 @@ static int xfrm_expand_policies(const struct flowi *fl, u16 family,
*num_xfrms = 0;
return 0;
}
- if (IS_ERR(pols[0]))
+ if (IS_ERR(pols[0])) {
+ *num_pols = 0;
return PTR_ERR(pols[0]);
+ }
*num_xfrms = pols[0]->xfrm_nr;
@@ -1688,6 +1690,7 @@ static int xfrm_expand_policies(const struct flowi *fl, u16 family,
if (pols[1]) {
if (IS_ERR(pols[1])) {
xfrm_pols_put(pols, *num_pols);
+ *num_pols = 0;
return PTR_ERR(pols[1]);
}
(*num_pols)++;
diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 753d5fc4b284..81a171668f42 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -179,6 +179,7 @@ int snd_dma_alloc_pages(int type, struct device *device, size_t size,
if (WARN_ON(!dmab))
return -ENXIO;
+ size = PAGE_ALIGN(size);
dmab->dev.type = type;
dmab->dev.dev = device;
dmab->bytes = 0;
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