Merge tag 'v5.10.168' of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux into ti-linux-5.10.y-cicd

This is the 5.10.168 stable release

* tag 'v5.10.168' of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux: (286 commits)
  Linux 5.10.168
  Fix page corruption caused by racy check in __free_pages
  arm64: dts: meson-axg: Make mmc host controller interrupts level-sensitive
  arm64: dts: meson-g12-common: Make mmc host controller interrupts level-sensitive
  arm64: dts: meson-gx: Make mmc host controller interrupts level-sensitive
  riscv: Fixup race condition on PG_dcache_clean in flush_icache_pte
  ceph: flush cap releases when the session is flushed
  usb: typec: altmodes/displayport: Fix probe pin assign check
  usb: core: add quirk for Alcor Link AK9563 smartcard reader
  btrfs: free device in btrfs_close_devices for a single device filesystem
  net: USB: Fix wrong-direction WARNING in plusb.c
  cifs: Fix use-after-free in rdata->read_into_pages()
  pinctrl: intel: Restore the pins that used to be in Direct IRQ mode
  spi: dw: Fix wrong FIFO level setting for long xfers
  pinctrl: single: fix potential NULL dereference
  pinctrl: aspeed: Fix confusing types in return value
  ALSA: pci: lx6464es: fix a debug loop
  selftests: forwarding: lib: quote the sysctl values
  rds: rds_rm_zerocopy_callback() use list_first_entry()
  net/mlx5: fw_tracer, Zero consumer index when reloading the tracer
  ...

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

15 files changed, 186 insertions, 13 deletions

diff --git a/include/linux/clk.h b/include/linux/clk.h
index 7fd6a1febcf4..1814eabb7c20 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -419,6 +419,47 @@ int __must_check devm_clk_bulk_get_all(struct device *dev,
 struct clk *devm_clk_get(struct device *dev, const char *id);
 
 /**
+ * devm_clk_get_prepared - devm_clk_get() + clk_prepare()
+ * @dev: device for clock "consumer"
+ * @id: clock consumer ID
+ *
+ * Context: May sleep.
+ *
+ * Return: a struct clk corresponding to the clock producer, or
+ * valid IS_ERR() condition containing errno.  The implementation
+ * uses @dev and @id to determine the clock consumer, and thereby
+ * the clock producer.  (IOW, @id may be identical strings, but
+ * clk_get may return different clock producers depending on @dev.)
+ *
+ * The returned clk (if valid) is prepared. Drivers must however assume
+ * that the clock is not enabled.
+ *
+ * The clock will automatically be unprepared and freed when the device
+ * is unbound from the bus.
+ */
+struct clk *devm_clk_get_prepared(struct device *dev, const char *id);
+
+/**
+ * devm_clk_get_enabled - devm_clk_get() + clk_prepare_enable()
+ * @dev: device for clock "consumer"
+ * @id: clock consumer ID
+ *
+ * Context: May sleep.
+ *
+ * Return: a struct clk corresponding to the clock producer, or
+ * valid IS_ERR() condition containing errno.  The implementation
+ * uses @dev and @id to determine the clock consumer, and thereby
+ * the clock producer.  (IOW, @id may be identical strings, but
+ * clk_get may return different clock producers depending on @dev.)
+ *
+ * The returned clk (if valid) is prepared and enabled.
+ *
+ * The clock will automatically be disabled, unprepared and freed
+ * when the device is unbound from the bus.
+ */
+struct clk *devm_clk_get_enabled(struct device *dev, const char *id);
+
+/**
  * devm_clk_get_optional - lookup and obtain a managed reference to an optional
  *			   clock producer.
  * @dev: device for clock "consumer"
@@ -430,6 +471,50 @@ struct clk *devm_clk_get(struct device *dev, const char *id);
 struct clk *devm_clk_get_optional(struct device *dev, const char *id);
 
 /**
+ * devm_clk_get_optional_prepared - devm_clk_get_optional() + clk_prepare()
+ * @dev: device for clock "consumer"
+ * @id: clock consumer ID
+ *
+ * Context: May sleep.
+ *
+ * Return: a struct clk corresponding to the clock producer, or
+ * valid IS_ERR() condition containing errno.  The implementation
+ * uses @dev and @id to determine the clock consumer, and thereby
+ * the clock producer.  If no such clk is found, it returns NULL
+ * which serves as a dummy clk.  That's the only difference compared
+ * to devm_clk_get_prepared().
+ *
+ * The returned clk (if valid) is prepared. Drivers must however
+ * assume that the clock is not enabled.
+ *
+ * The clock will automatically be unprepared and freed when the
+ * device is unbound from the bus.
+ */
+struct clk *devm_clk_get_optional_prepared(struct device *dev, const char *id);
+
+/**
+ * devm_clk_get_optional_enabled - devm_clk_get_optional() +
+ *                                 clk_prepare_enable()
+ * @dev: device for clock "consumer"
+ * @id: clock consumer ID
+ *
+ * Context: May sleep.
+ *
+ * Return: a struct clk corresponding to the clock producer, or
+ * valid IS_ERR() condition containing errno.  The implementation
+ * uses @dev and @id to determine the clock consumer, and thereby
+ * the clock producer.  If no such clk is found, it returns NULL
+ * which serves as a dummy clk.  That's the only difference compared
+ * to devm_clk_get_enabled().
+ *
+ * The returned clk (if valid) is prepared and enabled.
+ *
+ * The clock will automatically be disabled, unprepared and freed
+ * when the device is unbound from the bus.
+ */
+struct clk *devm_clk_get_optional_enabled(struct device *dev, const char *id);
+
+/**
  * devm_get_clk_from_child - lookup and obtain a managed reference to a
  *			     clock producer from child node.
  * @dev: device for clock "consumer"
@@ -773,12 +858,36 @@ static inline struct clk *devm_clk_get(struct device *dev, const char *id)
 	return NULL;
 }
 
+static inline struct clk *devm_clk_get_prepared(struct device *dev,
+						const char *id)
+{
+	return NULL;
+}
+
+static inline struct clk *devm_clk_get_enabled(struct device *dev,
+					       const char *id)
+{
+	return NULL;
+}
+
 static inline struct clk *devm_clk_get_optional(struct device *dev,
 						const char *id)
 {
 	return NULL;
 }
 
+static inline struct clk *devm_clk_get_optional_prepared(struct device *dev,
+							 const char *id)
+{
+	return NULL;
+}
+
+static inline struct clk *devm_clk_get_optional_enabled(struct device *dev,
+							const char *id)
+{
+	return NULL;
+}
+
 static inline int __must_check devm_clk_bulk_get(struct device *dev, int num_clks,
 						 struct clk_bulk_data *clks)
 {
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 955b19dc28a8..c0ba379574a4 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -7,6 +7,7 @@
 #include <linux/fs.h>
 #include <linux/hugetlb_inline.h>
 #include <linux/cgroup.h>
+#include <linux/page_ref.h>
 #include <linux/list.h>
 #include <linux/kref.h>
 #include <linux/pgtable.h>
@@ -144,7 +145,7 @@ int hugetlb_reserve_pages(struct inode *inode, long from, long to,
 						vm_flags_t vm_flags);
 long hugetlb_unreserve_pages(struct inode *inode, long start, long end,
 						long freed);
-bool isolate_huge_page(struct page *page, struct list_head *list);
+int isolate_hugetlb(struct page *page, struct list_head *list);
 void putback_active_hugepage(struct page *page);
 void move_hugetlb_state(struct page *oldpage, struct page *newpage, int reason);
 void free_huge_page(struct page *page);
@@ -325,9 +326,9 @@ static inline pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr,
 	return NULL;
 }
 
-static inline bool isolate_huge_page(struct page *page, struct list_head *list)
+static inline int isolate_hugetlb(struct page *page, struct list_head *list)
 {
-	return false;
+	return -EBUSY;
 }
 
 static inline void putback_active_hugepage(struct page *page)
@@ -942,4 +943,16 @@ static inline __init void hugetlb_cma_check(void)
 }
 #endif
 
+#ifdef CONFIG_ARCH_WANT_HUGE_PMD_SHARE
+static inline bool hugetlb_pmd_shared(pte_t *pte)
+{
+	return page_count(virt_to_page(pte)) > 1;
+}
+#else
+static inline bool hugetlb_pmd_shared(pte_t *pte)
+{
+	return false;
+}
+#endif
+
 #endif /* _LINUX_HUGETLB_H */
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index a42c18910a9c..55b98d400afb 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -321,6 +321,7 @@ extern long (*panic_blink)(int state);
 __printf(1, 2)
 void panic(const char *fmt, ...) __noreturn __cold;
 void nmi_panic(struct pt_regs *regs, const char *msg);
+void check_panic_on_warn(const char *origin);
 extern void oops_enter(void);
 extern void oops_exit(void);
 extern bool oops_may_print(void);
@@ -379,12 +380,6 @@ static inline u32 int_sqrt64(u64 x)
 }
 #endif
 
-#ifdef CONFIG_SMP
-extern unsigned int sysctl_oops_all_cpu_backtrace;
-#else
-#define sysctl_oops_all_cpu_backtrace 0
-#endif /* CONFIG_SMP */
-
 extern void bust_spinlocks(int yes);
 extern int panic_timeout;
 extern unsigned long panic_print;
diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h
index 06409a6c40bc..39ec67689898 100644
--- a/include/linux/nvmem-provider.h
+++ b/include/linux/nvmem-provider.h
@@ -49,7 +49,8 @@ enum nvmem_type {
  * @word_size:	Minimum read/write access granularity.
  * @stride:	Minimum read/write access stride.
  * @priv:	User context passed to read/write callbacks.
- * @wp-gpio:   Write protect pin
+ * @wp-gpio:	Write protect pin
+ * @ignore_wp:  Write Protect pin is managed by the provider.
  *
  * Note: A default "nvmem<id>" name will be assigned to the device if
  * no name is specified in its configuration. In such case "<id>" is
@@ -69,6 +70,7 @@ struct nvmem_config {
 	enum nvmem_type		type;
 	bool			read_only;
 	bool			root_only;
+	bool			ignore_wp;
 	bool			no_of_node;
 	nvmem_reg_read_t	reg_read;
 	nvmem_reg_write_t	reg_write;
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 4ce511437a8a..2832cc6be062 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -61,6 +61,7 @@ extern void sched_post_fork(struct task_struct *p,
 extern void sched_dead(struct task_struct *p);
 
 void __noreturn do_task_dead(void);
+void __noreturn make_task_dead(int signr);
 
 extern void proc_caches_init(void);
 
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 51298a4f4623..161eba9fd912 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -195,6 +195,9 @@ struct ctl_table_header *register_sysctl_paths(const struct ctl_path *path,
 void unregister_sysctl_table(struct ctl_table_header * table);
 
 extern int sysctl_init(void);
+extern void __register_sysctl_init(const char *path, struct ctl_table *table,
+				 const char *table_name);
+#define register_sysctl_init(path, table) __register_sysctl_init(path, table, #table)
 void do_sysctl_args(void);
 
 extern int pwrsw_enabled;
diff --git a/include/linux/units.h b/include/linux/units.h
index aaf716364ec3..3457179f7116 100644
--- a/include/linux/units.h
+++ b/include/linux/units.h
@@ -4,6 +4,26 @@
 
 #include <linux/kernel.h>
 
+/* Metric prefixes in accordance with Système international (d'unités) */
+#define PETA	1000000000000000ULL
+#define TERA	1000000000000ULL
+#define GIGA	1000000000UL
+#define MEGA	1000000UL
+#define KILO	1000UL
+#define HECTO	100UL
+#define DECA	10UL
+#define DECI	10UL
+#define CENTI	100UL
+#define MILLI	1000UL
+#define MICRO	1000000UL
+#define NANO	1000000000UL
+#define PICO	1000000000000ULL
+#define FEMTO	1000000000000000ULL
+
+#define MILLIWATT_PER_WATT	1000L
+#define MICROWATT_PER_MILLIWATT	1000L
+#define MICROWATT_PER_WATT	1000000L
+
 #define ABSOLUTE_ZERO_MILLICELSIUS -273150
 
 static inline long milli_kelvin_to_millicelsius(long t)
diff --git a/include/linux/util_macros.h b/include/linux/util_macros.h
index 72299f261b25..43db6e47503c 100644
--- a/include/linux/util_macros.h
+++ b/include/linux/util_macros.h
@@ -38,4 +38,16 @@
  */
 #define find_closest_descending(x, a, as) __find_closest(x, a, as, >=)
 
+/**
+ * is_insidevar - check if the @ptr points inside the @var memory range.
+ * @ptr:	the pointer to a memory address.
+ * @var:	the variable which address and size identify the memory range.
+ *
+ * Evaluates to true if the address in @ptr lies within the memory
+ * range allocated to @var.
+ */
+#define is_insidevar(ptr, var)						\
+	((uintptr_t)(ptr) >= (uintptr_t)(var) &&			\
+	 (uintptr_t)(ptr) <  (uintptr_t)(var) + sizeof(var))
+
 #endif
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index e7e8c318925d..61cd19ee51f4 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -1325,4 +1325,11 @@ static inline int skb_tc_reinsert(struct sk_buff *skb, struct tcf_result *res)
 	return res->ingress ? netif_receive_skb(skb) : dev_queue_xmit(skb);
 }
 
+/* Make sure qdisc is no longer in SCHED state. */
+static inline void qdisc_synchronize(const struct Qdisc *q)
+{
+	while (test_bit(__QDISC_STATE_SCHED, &q->state))
+		msleep(1);
+}
+
 #endif
diff --git a/include/net/sock.h b/include/net/sock.h
index 209e58032f26..45d4e683ac00 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -315,7 +315,7 @@ struct bpf_local_storage;
   *	@sk_tskey: counter to disambiguate concurrent tstamp requests
   *	@sk_zckey: counter to order MSG_ZEROCOPY notifications
   *	@sk_socket: Identd and reporting IO signals
-  *	@sk_user_data: RPC layer private data
+  *	@sk_user_data: RPC layer private data. Write-protected by @sk_callback_lock.
   *	@sk_frag: cached page frag
   *	@sk_peek_off: current peek_offset value
   *	@sk_send_head: front of stuff to transmit
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 037c77fb5dc5..c4de15f7a0a5 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -236,6 +236,14 @@ enum {
 	ISCSI_SESSION_FREE,
 };
 
+enum {
+	ISCSI_SESSION_TARGET_UNBOUND,
+	ISCSI_SESSION_TARGET_ALLOCATED,
+	ISCSI_SESSION_TARGET_SCANNED,
+	ISCSI_SESSION_TARGET_UNBINDING,
+	ISCSI_SESSION_TARGET_MAX,
+};
+
 #define ISCSI_MAX_TARGET -1
 
 struct iscsi_cls_session {
@@ -262,6 +270,7 @@ struct iscsi_cls_session {
 	 */
 	pid_t creator;
 	int state;
+	int target_state;			/* session target bind state */
 	int sid;				/* session id */
 	void *dd_data;				/* LLD private data */
 	struct device dev;	/* sysfs transport/container device */
diff --git a/include/uapi/linux/ip.h b/include/uapi/linux/ip.h
index d2f143393780..860bbf6bf29c 100644
--- a/include/uapi/linux/ip.h
+++ b/include/uapi/linux/ip.h
@@ -18,6 +18,7 @@
 #ifndef _UAPI_LINUX_IP_H
 #define _UAPI_LINUX_IP_H
 #include <linux/types.h>
+#include <linux/stddef.h>
 #include <asm/byteorder.h>
 
 #define IPTOS_TOS_MASK		0x1E
diff --git a/include/uapi/linux/ipv6.h b/include/uapi/linux/ipv6.h
index 766ab5c8ee65..d44d0483fd73 100644
--- a/include/uapi/linux/ipv6.h
+++ b/include/uapi/linux/ipv6.h
@@ -4,6 +4,7 @@
 
 #include <linux/libc-compat.h>
 #include <linux/types.h>
+#include <linux/stddef.h>
 #include <linux/in6.h>
 #include <asm/byteorder.h>
 
diff --git a/include/uapi/linux/netfilter/nf_conntrack_sctp.h b/include/uapi/linux/netfilter/nf_conntrack_sctp.h
index edc6ddab0de6..2d6f80d75ae7 100644
--- a/include/uapi/linux/netfilter/nf_conntrack_sctp.h
+++ b/include/uapi/linux/netfilter/nf_conntrack_sctp.h
@@ -15,7 +15,7 @@ enum sctp_conntrack {
 	SCTP_CONNTRACK_SHUTDOWN_RECD,
 	SCTP_CONNTRACK_SHUTDOWN_ACK_SENT,
 	SCTP_CONNTRACK_HEARTBEAT_SENT,
-	SCTP_CONNTRACK_HEARTBEAT_ACKED,
+	SCTP_CONNTRACK_HEARTBEAT_ACKED,	/* no longer used */
 	SCTP_CONNTRACK_MAX
 };
 
diff --git a/include/uapi/linux/netfilter/nfnetlink_cttimeout.h b/include/uapi/linux/netfilter/nfnetlink_cttimeout.h
index 6b20fb22717b..aa805e6d4e28 100644
--- a/include/uapi/linux/netfilter/nfnetlink_cttimeout.h
+++ b/include/uapi/linux/netfilter/nfnetlink_cttimeout.h
@@ -94,7 +94,7 @@ enum ctattr_timeout_sctp {
 	CTA_TIMEOUT_SCTP_SHUTDOWN_RECD,
 	CTA_TIMEOUT_SCTP_SHUTDOWN_ACK_SENT,
 	CTA_TIMEOUT_SCTP_HEARTBEAT_SENT,
-	CTA_TIMEOUT_SCTP_HEARTBEAT_ACKED,
+	CTA_TIMEOUT_SCTP_HEARTBEAT_ACKED, /* no longer used */
 	__CTA_TIMEOUT_SCTP_MAX
 };
 #define CTA_TIMEOUT_SCTP_MAX (__CTA_TIMEOUT_SCTP_MAX - 1)