Re: Linux 4.14.318

From: Greg Kroah-Hartman
Date: Wed Jun 14 2023 - 05:38:24 EST


diff --git a/Makefile b/Makefile
index b5b5835afcc7..0f0c0ac3c0a2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 14
-SUBLEVEL = 317
+SUBLEVEL = 318
EXTRAVERSION =
NAME = Petit Gorille

diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 0327e0a6802b..dc061424f546 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -327,8 +327,15 @@ static u32 vi_get_xclk(struct amdgpu_device *adev)
u32 reference_clock = adev->clock.spll.reference_freq;
u32 tmp;

- if (adev->flags & AMD_IS_APU)
- return reference_clock;
+ if (adev->flags & AMD_IS_APU) {
+ switch (adev->asic_type) {
+ case CHIP_STONEY:
+ /* vbios says 48Mhz, but the actual freq is 100Mhz */
+ return 10000;
+ default:
+ return reference_clock;
+ }
+ }

tmp = RREG32_SMC(ixCG_CLKPIN_CNTL_2);
if (REG_GET_FIELD(tmp, CG_CLKPIN_CNTL_2, MUX_TCLK_TO_XCLK))
diff --git a/drivers/i2c/busses/i2c-sprd.c b/drivers/i2c/busses/i2c-sprd.c
index 1925c8938119..452b868e5c97 100644
--- a/drivers/i2c/busses/i2c-sprd.c
+++ b/drivers/i2c/busses/i2c-sprd.c
@@ -581,10 +581,12 @@ static int sprd_i2c_remove(struct platform_device *pdev)

ret = pm_runtime_get_sync(i2c_dev->dev);
if (ret < 0)
- return ret;
+ dev_err(&pdev->dev, "Failed to resume device (%pe)\n", ERR_PTR(ret));

i2c_del_adapter(&i2c_dev->adap);
- clk_disable_unprepare(i2c_dev->clk);
+
+ if (ret >= 0)
+ clk_disable_unprepare(i2c_dev->clk);

pm_runtime_put_noidle(i2c_dev->dev);
pm_runtime_disable(i2c_dev->dev);
diff --git a/drivers/infiniband/hw/i40iw/i40iw.h b/drivers/infiniband/hw/i40iw/i40iw.h
index 8cabd293fc21..8cd4fc71ee07 100644
--- a/drivers/infiniband/hw/i40iw/i40iw.h
+++ b/drivers/infiniband/hw/i40iw/i40iw.h
@@ -414,9 +414,8 @@ void i40iw_manage_arp_cache(struct i40iw_device *iwdev,
bool ipv4,
u32 action);

-int i40iw_manage_apbvt(struct i40iw_device *iwdev,
- u16 accel_local_port,
- bool add_port);
+enum i40iw_status_code i40iw_manage_apbvt(struct i40iw_device *iwdev,
+ u16 accel_local_port, bool add_port);

struct i40iw_cqp_request *i40iw_get_cqp_request(struct i40iw_cqp *cqp, bool wait);
void i40iw_free_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request);
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index f1c2bc108fd7..9f503c1e74b4 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -279,7 +279,6 @@ static const struct xpad_device {
{ 0x1430, 0xf801, "RedOctane Controller", 0, XTYPE_XBOX360 },
{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
{ 0x146b, 0x0604, "Bigben Interactive DAIJA Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
- { 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 },
{ 0x1532, 0x0a00, "Razer Atrox Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
{ 0x1532, 0x0a03, "Razer Wildcat", 0, XTYPE_XBOXONE },
{ 0x15e4, 0x3f00, "Power A Mini Pro Elite", 0, XTYPE_XBOX360 },
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index b27a91fee7f7..5324f0a3fd73 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -595,10 +595,11 @@ static void process_packet_head_v4(struct psmouse *psmouse)
struct input_dev *dev = psmouse->dev;
struct elantech_data *etd = psmouse->private;
unsigned char *packet = psmouse->packet;
- int id = ((packet[3] & 0xe0) >> 5) - 1;
+ int id;
int pres, traces;

- if (id < 0)
+ id = ((packet[3] & 0xe0) >> 5) - 1;
+ if (id < 0 || id >= ETP_MAX_FINGERS)
return;

etd->mt[id].x = ((packet[1] & 0x0f) << 8) | packet[2];
@@ -628,7 +629,7 @@ static void process_packet_motion_v4(struct psmouse *psmouse)
int id, sid;

id = ((packet[0] & 0xe0) >> 5) - 1;
- if (id < 0)
+ if (id < 0 || id >= ETP_MAX_FINGERS)
return;

sid = ((packet[3] & 0xe0) >> 5) - 1;
@@ -649,7 +650,7 @@ static void process_packet_motion_v4(struct psmouse *psmouse)
input_report_abs(dev, ABS_MT_POSITION_X, etd->mt[id].x);
input_report_abs(dev, ABS_MT_POSITION_Y, etd->mt[id].y);

- if (sid >= 0) {
+ if (sid >= 0 && sid < ETP_MAX_FINGERS) {
etd->mt[sid].x += delta_x2 * weight;
etd->mt[sid].y -= delta_y2 * weight;
input_mt_slot(dev, sid);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 89782e8e0b91..ee438674d6cc 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -5239,6 +5239,9 @@ static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init)
goto err_out;
}

+ if (BNXT_VF(bp))
+ bnxt_hwrm_func_qcfg(bp);
+
rc = bnxt_setup_vnic(bp, 0);
if (rc)
goto err_out;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_alloc.h b/drivers/net/ethernet/intel/i40e/i40e_alloc.h
index 926811ad44ac..e1cbea72d6b6 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_alloc.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_alloc.h
@@ -43,16 +43,11 @@ enum i40e_memory_type {
};

/* prototype for functions used for dynamic memory allocation */
-i40e_status i40e_allocate_dma_mem(struct i40e_hw *hw,
- struct i40e_dma_mem *mem,
- enum i40e_memory_type type,
- u64 size, u32 alignment);
-i40e_status i40e_free_dma_mem(struct i40e_hw *hw,
- struct i40e_dma_mem *mem);
-i40e_status i40e_allocate_virt_mem(struct i40e_hw *hw,
- struct i40e_virt_mem *mem,
- u32 size);
-i40e_status i40e_free_virt_mem(struct i40e_hw *hw,
- struct i40e_virt_mem *mem);
+int i40e_allocate_dma_mem(struct i40e_hw *hw, struct i40e_dma_mem *mem,
+ enum i40e_memory_type type, u64 size, u32 alignment);
+int i40e_free_dma_mem(struct i40e_hw *hw, struct i40e_dma_mem *mem);
+int i40e_allocate_virt_mem(struct i40e_hw *hw, struct i40e_virt_mem *mem,
+ u32 size);
+int i40e_free_virt_mem(struct i40e_hw *hw, struct i40e_virt_mem *mem);

#endif /* _I40E_ALLOC_H_ */
diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c
index 1ca678bcb527..933f9342529a 100644
--- a/drivers/spi/spi-qup.c
+++ b/drivers/spi/spi-qup.c
@@ -1003,23 +1003,8 @@ static int spi_qup_probe(struct platform_device *pdev)
return -ENXIO;
}

- ret = clk_prepare_enable(cclk);
- if (ret) {
- dev_err(dev, "cannot enable core clock\n");
- return ret;
- }
-
- ret = clk_prepare_enable(iclk);
- if (ret) {
- clk_disable_unprepare(cclk);
- dev_err(dev, "cannot enable iface clock\n");
- return ret;
- }
-
master = spi_alloc_master(dev, sizeof(struct spi_qup));
if (!master) {
- clk_disable_unprepare(cclk);
- clk_disable_unprepare(iclk);
dev_err(dev, "cannot allocate master\n");
return -ENOMEM;
}
@@ -1065,6 +1050,19 @@ static int spi_qup_probe(struct platform_device *pdev)
spin_lock_init(&controller->lock);
init_completion(&controller->done);

+ ret = clk_prepare_enable(cclk);
+ if (ret) {
+ dev_err(dev, "cannot enable core clock\n");
+ goto error_dma;
+ }
+
+ ret = clk_prepare_enable(iclk);
+ if (ret) {
+ clk_disable_unprepare(cclk);
+ dev_err(dev, "cannot enable iface clock\n");
+ goto error_dma;
+ }
+
iomode = readl_relaxed(base + QUP_IO_M_MODES);

size = QUP_IO_M_OUTPUT_BLOCK_SIZE(iomode);
@@ -1094,7 +1092,7 @@ static int spi_qup_probe(struct platform_device *pdev)
ret = spi_qup_set_state(controller, QUP_STATE_RESET);
if (ret) {
dev_err(dev, "cannot set RESET state\n");
- goto error_dma;
+ goto error_clk;
}

writel_relaxed(0, base + QUP_OPERATIONAL);
@@ -1118,7 +1116,7 @@ static int spi_qup_probe(struct platform_device *pdev)
ret = devm_request_irq(dev, irq, spi_qup_qup_irq,
IRQF_TRIGGER_HIGH, pdev->name, controller);
if (ret)
- goto error_dma;
+ goto error_clk;

pm_runtime_set_autosuspend_delay(dev, MSEC_PER_SEC);
pm_runtime_use_autosuspend(dev);
@@ -1133,11 +1131,12 @@ static int spi_qup_probe(struct platform_device *pdev)

disable_pm:
pm_runtime_disable(&pdev->dev);
+error_clk:
+ clk_disable_unprepare(cclk);
+ clk_disable_unprepare(iclk);
error_dma:
spi_qup_release_dma(master);
error:
- clk_disable_unprepare(cclk);
- clk_disable_unprepare(iclk);
spi_master_put(master);
return ret;
}
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index 8bccaf9ea700..8420bdae1a5c 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -61,9 +61,9 @@ static const struct rtl819x_ops rtl819xp_ops = {
};

static struct pci_device_id rtl8192_pci_id_tbl[] = {
- {PCI_DEVICE(0x10ec, 0x8192)},
- {PCI_DEVICE(0x07aa, 0x0044)},
- {PCI_DEVICE(0x07aa, 0x0047)},
+ {RTL_PCI_DEVICE(0x10ec, 0x8192, rtl819xp_ops)},
+ {RTL_PCI_DEVICE(0x07aa, 0x0044, rtl819xp_ops)},
+ {RTL_PCI_DEVICE(0x07aa, 0x0047, rtl819xp_ops)},
{}
};

diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
index ff9b544edf87..9d3089cb6a5a 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
@@ -67,6 +67,11 @@
#define IS_HARDWARE_TYPE_8192SE(_priv) \
(((struct r8192_priv *)rtllib_priv(dev))->card_8192 == NIC_8192SE)

+#define RTL_PCI_DEVICE(vend, dev, cfg) \
+ .vendor = (vend), .device = (dev), \
+ .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, \
+ .driver_data = (kernel_ulong_t)&(cfg)
+
#define TOTAL_CAM_ENTRY 32
#define CAM_CONTENT_COUNT 8

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 313547442a6e..fe5d6f77892e 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -2387,7 +2387,7 @@ int prepare_to_merge(struct reloc_control *rc, int err)
list_splice(&reloc_roots, &rc->reloc_roots);

if (!err)
- btrfs_commit_transaction(trans);
+ err = btrfs_commit_transaction(trans);
else
btrfs_end_transaction(trans);
return err;
@@ -4014,8 +4014,12 @@ int prepare_to_relocate(struct reloc_control *rc)
*/
return PTR_ERR(trans);
}
- btrfs_commit_transaction(trans);
- return 0;
+
+ ret = btrfs_commit_transaction(trans);
+ if (ret)
+ unset_reloc_control(rc);
+
+ return ret;
}

static noinline_for_stack int relocate_block_group(struct reloc_control *rc)
@@ -4210,7 +4214,9 @@ static noinline_for_stack int relocate_block_group(struct reloc_control *rc)
err = PTR_ERR(trans);
goto out_free;
}
- btrfs_commit_transaction(trans);
+ ret = btrfs_commit_transaction(trans);
+ if (ret && !err)
+ err = ret;
out_free:
btrfs_free_block_rsv(fs_info, rc->block_rsv);
btrfs_free_path(path);
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index a0168d9bb85d..e36786f574b8 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -1437,6 +1437,7 @@ void ceph_flush_snaps(struct ceph_inode_info *ci,
struct inode *inode = &ci->vfs_inode;
struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
struct ceph_mds_session *session = NULL;
+ bool need_put = false;
int mds;

dout("ceph_flush_snaps %p\n", inode);
@@ -1490,8 +1491,13 @@ void ceph_flush_snaps(struct ceph_inode_info *ci,
}
/* we flushed them all; remove this inode from the queue */
spin_lock(&mdsc->snap_flush_lock);
+ if (!list_empty(&ci->i_snap_flush_item))
+ need_put = true;
list_del_init(&ci->i_snap_flush_item);
spin_unlock(&mdsc->snap_flush_lock);
+
+ if (need_put)
+ iput(inode);
}

/*
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index e12fa3a723db..ec917ad13595 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -623,8 +623,10 @@ int __ceph_finish_cap_snap(struct ceph_inode_info *ci,
capsnap->size);

spin_lock(&mdsc->snap_flush_lock);
- if (list_empty(&ci->i_snap_flush_item))
+ if (list_empty(&ci->i_snap_flush_item)) {
+ ihold(inode);
list_add_tail(&ci->i_snap_flush_item, &mdsc->snap_flush_list);
+ }
spin_unlock(&mdsc->snap_flush_lock);
return 1; /* caller may want to ceph_flush_snaps */
}
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index e6c3bf7ad9b9..c2117b985d4a 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -2021,8 +2021,9 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
else {
u32 ref;

+#ifdef EXT4_XATTR_DEBUG
WARN_ON_ONCE(dquot_initialize_needed(inode));
-
+#endif
/* The old block is released after updating
the inode. */
error = dquot_alloc_block(inode,
@@ -2090,8 +2091,9 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
/* We need to allocate a new block */
ext4_fsblk_t goal, block;

+#ifdef EXT4_XATTR_DEBUG
WARN_ON_ONCE(dquot_initialize_needed(inode));
-
+#endif
goal = ext4_group_first_block_no(sb,
EXT4_I(inode)->i_block_group);
block = ext4_new_meta_blocks(handle, inode, goal, 0,
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2cd7eb2b9173..d2fc7e6ca9cc 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -670,8 +670,11 @@ static inline void rps_record_sock_flow(struct rps_sock_flow_table *table,
/* We only give a hint, preemption can change CPU under us */
val |= raw_smp_processor_id();

- if (table->ents[index] != val)
- table->ents[index] = val;
+ /* The following WRITE_ONCE() is paired with the READ_ONCE()
+ * here, and another one in get_rps_cpu().
+ */
+ if (READ_ONCE(table->ents[index]) != val)
+ WRITE_ONCE(table->ents[index], val);
}
}

diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index b3869f97d37d..85e059d3bc23 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -126,6 +126,8 @@ static inline __be16 tc_skb_protocol(const struct sk_buff *skb)
return skb->protocol;
}

+extern const struct nla_policy rtm_tca_policy[TCA_MAX + 1];
+
/* Calculate maximal size of packet seen by hard_start_xmit
routine of this device.
*/
diff --git a/include/net/sock.h b/include/net/sock.h
index ee1a2217a98c..eccec5df94b9 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -957,8 +957,12 @@ static inline void sock_rps_record_flow(const struct sock *sk)
* OR an additional socket flag
* [1] : sk_state and sk_prot are in the same cache line.
*/
- if (sk->sk_state == TCP_ESTABLISHED)
- sock_rps_record_flow_hash(sk->sk_rxhash);
+ if (sk->sk_state == TCP_ESTABLISHED) {
+ /* This READ_ONCE() is paired with the WRITE_ONCE()
+ * from sock_rps_save_rxhash() and sock_rps_reset_rxhash().
+ */
+ sock_rps_record_flow_hash(READ_ONCE(sk->sk_rxhash));
+ }
}
#endif
}
@@ -967,15 +971,19 @@ static inline void sock_rps_save_rxhash(struct sock *sk,
const struct sk_buff *skb)
{
#ifdef CONFIG_RPS
- if (unlikely(sk->sk_rxhash != skb->hash))
- sk->sk_rxhash = skb->hash;
+ /* The following WRITE_ONCE() is paired with the READ_ONCE()
+ * here, and another one in sock_rps_record_flow().
+ */
+ if (unlikely(READ_ONCE(sk->sk_rxhash) != skb->hash))
+ WRITE_ONCE(sk->sk_rxhash, skb->hash);
#endif
}

static inline void sock_rps_reset_rxhash(struct sock *sk)
{
#ifdef CONFIG_RPS
- sk->sk_rxhash = 0;
+ /* Paired with READ_ONCE() in sock_rps_record_flow() */
+ WRITE_ONCE(sk->sk_rxhash, 0);
#endif
}

diff --git a/lib/cpu_rmap.c b/lib/cpu_rmap.c
index f52389054a24..a0de1b2579f7 100644
--- a/lib/cpu_rmap.c
+++ b/lib/cpu_rmap.c
@@ -271,8 +271,8 @@ static void irq_cpu_rmap_release(struct kref *ref)
struct irq_glue *glue =
container_of(ref, struct irq_glue, notify.kref);

- cpu_rmap_put(glue->rmap);
glue->rmap->obj[glue->index] = NULL;
+ cpu_rmap_put(glue->rmap);
kfree(glue);
}

diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index 1519cbf70150..8e838b6647e4 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -60,7 +60,6 @@ static void batadv_dat_purge(struct work_struct *work);
*/
static void batadv_dat_start_timer(struct batadv_priv *bat_priv)
{
- INIT_DELAYED_WORK(&bat_priv->dat.work, batadv_dat_purge);
queue_delayed_work(batadv_event_workqueue, &bat_priv->dat.work,
msecs_to_jiffies(10000));
}
@@ -774,6 +773,7 @@ int batadv_dat_init(struct batadv_priv *bat_priv)
if (!bat_priv->dat.hash)
return -ENOMEM;

+ INIT_DELAYED_WORK(&bat_priv->dat.work, batadv_dat_purge);
batadv_dat_start_timer(bat_priv);

batadv_tvlv_handler_register(bat_priv, batadv_dat_tvlv_ogm_handler_v1,
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 1fd6498e3387..7052434c1061 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2468,10 +2468,10 @@ int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr)

int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type)
{
- struct smp_ltk *k;
+ struct smp_ltk *k, *tmp;
int removed = 0;

- list_for_each_entry_rcu(k, &hdev->long_term_keys, list) {
+ list_for_each_entry_safe(k, tmp, &hdev->long_term_keys, list) {
if (bacmp(bdaddr, &k->bdaddr) || k->bdaddr_type != bdaddr_type)
continue;

@@ -2487,9 +2487,9 @@ int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type)

void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type)
{
- struct smp_irk *k;
+ struct smp_irk *k, *tmp;

- list_for_each_entry_rcu(k, &hdev->identity_resolving_keys, list) {
+ list_for_each_entry_safe(k, tmp, &hdev->identity_resolving_keys, list) {
if (bacmp(bdaddr, &k->bdaddr) || k->addr_type != addr_type)
continue;

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index b0bb4cf52a7e..25d88b8cfae9 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -4007,6 +4007,10 @@ static int l2cap_connect_create_rsp(struct l2cap_conn *conn,
result = __le16_to_cpu(rsp->result);
status = __le16_to_cpu(rsp->status);

+ if (result == L2CAP_CR_SUCCESS && (dcid < L2CAP_CID_DYN_START ||
+ dcid > L2CAP_CID_DYN_END))
+ return -EPROTO;
+
BT_DBG("dcid 0x%4.4x scid 0x%4.4x result 0x%2.2x status 0x%2.2x",
dcid, scid, result, status);

@@ -4038,6 +4042,11 @@ static int l2cap_connect_create_rsp(struct l2cap_conn *conn,

switch (result) {
case L2CAP_CR_SUCCESS:
+ if (__l2cap_get_chan_by_dcid(conn, dcid)) {
+ err = -EBADSLT;
+ break;
+ }
+
l2cap_state_change(chan, BT_CONFIG);
chan->ident = 0;
chan->dcid = dcid;
@@ -4362,7 +4371,9 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn,

chan->ops->set_shutdown(chan);

+ l2cap_chan_unlock(chan);
mutex_lock(&conn->chan_lock);
+ l2cap_chan_lock(chan);
l2cap_chan_del(chan, ECONNRESET);
mutex_unlock(&conn->chan_lock);

@@ -4401,7 +4412,9 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn,
return 0;
}

+ l2cap_chan_unlock(chan);
mutex_lock(&conn->chan_lock);
+ l2cap_chan_lock(chan);
l2cap_chan_del(chan, 0);
mutex_unlock(&conn->chan_lock);

diff --git a/net/core/dev.c b/net/core/dev.c
index a4d68da68232..04c43c7ecaca 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3696,8 +3696,10 @@ static int get_rps_cpu(struct net_device *dev, struct sk_buff *skb,
u32 next_cpu;
u32 ident;

- /* First check into global flow table if there is a match */
- ident = sock_flow_table->ents[hash & sock_flow_table->mask];
+ /* First check into global flow table if there is a match.
+ * This READ_ONCE() pairs with WRITE_ONCE() from rps_record_sock_flow().
+ */
+ ident = READ_ONCE(sock_flow_table->ents[hash & sock_flow_table->mask]);
if ((ident ^ hash) & ~rps_cpu_mask)
goto try_rps;

diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 32819d1e2075..8808133e78a3 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -31,8 +31,6 @@
#include <net/pkt_sched.h>
#include <net/pkt_cls.h>

-extern const struct nla_policy rtm_tca_policy[TCA_MAX + 1];
-
/* The list of all installed classifier types */
static LIST_HEAD(tcf_proto_base);