21 files changed, 71 insertions, 65 deletions

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index ffa5626411ac..e57af902560c 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -894,6 +894,7 @@ enum bpf_arg_type {
 
 	ARG_PTR_TO_CTX,		/* pointer to context */
 	ARG_ANYTHING,		/* any (initialized) argument is ok */
+	ARG_SCALAR,		/* scalar argument */
 	ARG_PTR_TO_SPIN_LOCK,	/* pointer to bpf_spin_lock */
 	ARG_PTR_TO_SOCK_COMMON,	/* pointer to sock_common */
 	ARG_PTR_TO_SOCKET,	/* pointer to bpf_sock (fullsock) */
@@ -4209,7 +4210,7 @@ static inline int bpf_map_check_op_flags(struct bpf_map *map, u64 flags, u64 all
 			return -EINVAL;
 
 		cpu = flags >> 32;
-		if ((flags & BPF_F_CPU) && cpu >= num_possible_cpus())
+		if ((flags & BPF_F_CPU) && (cpu >= nr_cpu_ids || !cpu_possible(cpu)))
 			return -ERANGE;
 	}
 
diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h
index 5fad59fdab0d..36b65797877d 100644
--- a/include/linux/bpf_verifier.h
+++ b/include/linux/bpf_verifier.h
@@ -706,6 +706,8 @@ struct bpf_insn_aux_data {
 	 */
 	u32 calls_callback:1;
 	u32 indirect_target:1; /* if it is an indirect jump target */
+	/* true if some jump or call instruction targets this instruction */
+	u32 jump_target:1;
 	/*
 	 * CFG strongly connected component this instruction belongs to,
 	 * zero if it is a singleton SCC.
@@ -1142,6 +1144,16 @@ static inline void mark_jmp_point(struct bpf_verifier_env *env, int idx)
 	env->insn_aux_data[idx].jmp_point = true;
 }
 
+static inline void mark_jump_target(struct bpf_verifier_env *env, int idx)
+{
+	env->insn_aux_data[idx].jump_target = true;
+}
+
+static inline bool bpf_is_jump_target(struct bpf_verifier_env *env, int insn_idx)
+{
+	return env->insn_aux_data[insn_idx].jump_target;
+}
+
 static inline struct bpf_func_state *cur_func(struct bpf_verifier_env *env)
 {
 	struct bpf_verifier_state *cur = env->cur_state;
@@ -1369,7 +1381,9 @@ static inline bool bpf_type_has_unsafe_modifiers(u32 type)
 
 static inline bool type_is_ptr_alloc_obj(u32 type)
 {
-	return base_type(type) == PTR_TO_BTF_ID && type_flag(type) & MEM_ALLOC;
+	return base_type(type) == PTR_TO_BTF_ID &&
+	       type_flag(type) & MEM_ALLOC &&
+	       !(type_flag(type) & PTR_UNTRUSTED);
 }
 
 static inline bool type_is_non_owning_ref(u32 type)
diff --git a/include/linux/capability.h b/include/linux/capability.h
index 37db92b3d6f8..f8532d92fcad 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -145,6 +145,7 @@ extern bool has_capability_noaudit(struct task_struct *t, int cap);
 extern bool has_ns_capability_noaudit(struct task_struct *t,
 				      struct user_namespace *ns, int cap);
 extern bool capable(int cap);
+bool capable_noaudit(int cap);
 extern bool ns_capable(struct user_namespace *ns, int cap);
 extern bool ns_capable_noaudit(struct user_namespace *ns, int cap);
 extern bool ns_capable_setid(struct user_namespace *ns, int cap);
@@ -167,6 +168,10 @@ static inline bool capable(int cap)
 {
 	return true;
 }
+static inline bool capable_noaudit(int cap)
+{
+	return true;
+}
 static inline bool ns_capable(struct user_namespace *ns, int cap)
 {
 	return true;
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 7a631a257613..3754d697854b 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -527,7 +527,10 @@ struct cgroup {
 
 	int nr_threaded_children;	/* # of live threaded child cgroups */
 
-	/* sequence number for cgroup.kill, serialized by css_set_lock. */
+	/*
+	 * Sequence number for cgroup.kill. Incremented with both cgroup_mutex
+	 * and css_set_lock held. Readers hold either one.
+	 */
 	unsigned int kill_seq;
 
 	struct kernfs_node *kn;		/* cgroup kernfs entry */
diff --git a/include/linux/device-id/ap.h b/include/linux/device-id/ap.h
index 0992333a34db..e050abebbf3d 100644
--- a/include/linux/device-id/ap.h
+++ b/include/linux/device-id/ap.h
@@ -4,7 +4,6 @@
 
 #ifdef __KERNEL__
 #include <linux/types.h>
-typedef unsigned long kernel_ulong_t;
 #endif
 
 #define AP_DEVICE_ID_MATCH_CARD_TYPE		0x01
@@ -14,7 +13,6 @@ typedef unsigned long kernel_ulong_t;
 struct ap_device_id {
 	__u16 match_flags;	/* which fields to match against */
 	__u8 dev_type;		/* device type */
-	kernel_ulong_t driver_info;
 };
 
 #endif /* ifndef LINUX_DEVICE_ID_AP_H */
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h
index d1203da56fc5..d15b2b31d3c9 100644
--- a/include/linux/dma-buf.h
+++ b/include/linux/dma-buf.h
@@ -567,6 +567,7 @@ void dma_buf_unpin(struct dma_buf_attachment *attach);
 struct dma_buf *dma_buf_export(const struct dma_buf_export_info *exp_info);
 
 int dma_buf_fd(struct dma_buf *dmabuf, int flags);
+void dma_buf_fd_install(struct dma_buf *dmabuf, int fd);
 struct dma_buf *dma_buf_get(int fd);
 void dma_buf_put(struct dma_buf *dmabuf);
 
diff --git a/include/linux/dma-fence-array.h b/include/linux/dma-fence-array.h
index 1b1d87579c38..0c49d7ccefb6 100644
--- a/include/linux/dma-fence-array.h
+++ b/include/linux/dma-fence-array.h
@@ -28,7 +28,6 @@ struct dma_fence_array_cb {
 /**
  * struct dma_fence_array - fence to represent an array of fences
  * @base: fence base class
- * @lock: spinlock for fence handling
  * @num_fences: number of fences in the array
  * @num_pending: fences in the array still pending
  * @fences: array of the fences
diff --git a/include/linux/dma-fence-chain.h b/include/linux/dma-fence-chain.h
index df3beadf1515..705c4394ac0d 100644
--- a/include/linux/dma-fence-chain.h
+++ b/include/linux/dma-fence-chain.h
@@ -20,7 +20,6 @@
  * @prev: previous fence of the chain
  * @prev_seqno: original previous seqno before garbage collection
  * @fence: encapsulated fence
- * @lock: spinlock for fence handling
  */
 struct dma_fence_chain {
 	struct dma_fence base;
@@ -81,9 +80,8 @@ dma_fence_chain_contained(struct dma_fence *fence)
 }
 
 /**
- * dma_fence_chain_alloc
- *
- * Returns a new struct dma_fence_chain object or NULL on failure.
+ * dma_fence_chain_alloc - Returns a new &struct dma_fence_chain object or
+ * %NULL on failure.
  *
  * This specialized allocator has to be a macro for its allocations to be
  * accounted separately (to have a separate alloc_tag). The typecast is
@@ -93,7 +91,8 @@ dma_fence_chain_contained(struct dma_fence *fence)
 		kmalloc_obj(struct dma_fence_chain)
 
 /**
- * dma_fence_chain_free
+ * dma_fence_chain_free - Frees an allocated but not used
+ * &struct dma_fence_chain object.
  * @chain: chain node to free
  *
  * Frees up an allocated but not used struct dma_fence_chain object. This
diff --git a/include/linux/edac.h b/include/linux/edac.h
index e6b4e51130e5..f7a8218f9cc0 100644
--- a/include/linux/edac.h
+++ b/include/linux/edac.h
@@ -598,9 +598,6 @@ struct mem_ctl_info {
 	int op_state;
 
 	struct dentry *debugfs;
-	u8 fake_inject_layer[EDAC_MAX_LAYERS];
-	bool fake_inject_ue;
-	u16 fake_inject_count;
 
 	/*
 	 * Memory Controller hierarchy
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 4a9bc6a848f2..39decde7fc73 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -1376,7 +1376,6 @@ bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
 void bpf_jit_binary_free(struct bpf_binary_header *hdr);
 u64 bpf_jit_alloc_exec_limit(void);
 void *bpf_jit_alloc_exec(unsigned long size);
-void *bpf_jit_alloc_exec_rw(unsigned long size);
 void bpf_jit_free_exec(void *addr);
 void bpf_jit_free(struct bpf_prog *fp);
 struct bpf_binary_header *
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 02bc5027523a..bd76a16a63af 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -866,8 +866,9 @@ unsigned long ftrace_get_addr_new(struct dyn_ftrace *rec);
 unsigned long ftrace_get_addr_curr(struct dyn_ftrace *rec);
 
 extern ftrace_func_t ftrace_trace_function;
+struct trace_array;
 
-int ftrace_regex_open(struct ftrace_ops *ops, int flag,
+int ftrace_regex_open(struct trace_array *tr, struct ftrace_ops *ops, int flag,
 		  struct inode *inode, struct file *file);
 ssize_t ftrace_filter_write(struct file *file, const char __user *ubuf,
 			    size_t cnt, loff_t *ppos);
@@ -1077,7 +1078,7 @@ static inline unsigned long ftrace_location(unsigned long ip)
  * have them defined when ftrace is not enabled, but these
  * functions may still be called. Use a macro instead of inline.
  */
-#define ftrace_regex_open(ops, flag, inod, file) ({ -ENODEV; })
+#define ftrace_regex_open(tr, ops, flag, inode, file) ({ -ENODEV; })
 #define ftrace_set_early_filter(ops, buf, enable) do { } while (0)
 #define ftrace_set_filter_ip(ops, ip, remove, reset) ({ -ENODEV; })
 #define ftrace_set_filter_ips(ops, ips, cnt, remove, reset) ({ -ENODEV; })
diff --git a/include/linux/igmp.h b/include/linux/igmp.h
index 3a2d35a9f307..a0cf0398519f 100644
--- a/include/linux/igmp.h
+++ b/include/linux/igmp.h
@@ -57,20 +57,21 @@ struct ip_mc_socklist {
 };
 
 struct ip_sf_list {
-	struct ip_sf_list	*sf_next;
+	struct ip_sf_list __rcu	*sf_next;
 	unsigned long		sf_count[2];	/* include/exclude counts */
 	__be32			sf_inaddr;
 	unsigned char		sf_gsresp;	/* include in g & s response? */
 	unsigned char		sf_oldin;	/* change state */
 	unsigned char		sf_crcount;	/* retrans. left to send */
+	struct rcu_head		rcu;
 };
 
 struct ip_mc_list {
 	struct in_device	*interface;
 	__be32			multiaddr;
 	unsigned int		sfmode;
-	struct ip_sf_list	*sources;
-	struct ip_sf_list	*tomb;
+	struct ip_sf_list __rcu	*sources;
+	struct ip_sf_list __rcu	*tomb;
 	unsigned long		sfcount[2];
 	union {
 		struct ip_mc_list *next;
diff --git a/include/linux/interrupt_rc.h b/include/linux/interrupt_rc.h
index b9a7f05ecf42..a9ed937a80e7 100644
--- a/include/linux/interrupt_rc.h
+++ b/include/linux/interrupt_rc.h
@@ -20,11 +20,8 @@
 /* Per-CPU interrupt disabling state for local_interrupt_{disable,enable}(). */
 DECLARE_PER_CPU(unsigned long, local_interrupt_disable_state);
 
-static __always_inline void __local_interrupt_disable(void)
+static __always_inline void __local_interrupt_save_state(unsigned long flags)
 {
-	unsigned long flags;
-
-	local_irq_save(flags);
 	raw_cpu_write(local_interrupt_disable_state, flags);
 }
 
@@ -36,9 +33,9 @@ static __always_inline void __local_interrupt_enable(void)
 }
 
 #ifndef INSTANTIATE_EXPORTED_INTERRUPT_DISABLE
-static __always_inline void _local_interrupt_disable(void)
+static __always_inline void _local_interrupt_save_state(unsigned long flags)
 {
-	__local_interrupt_disable();
+	__local_interrupt_save_state(flags);
 }
 
 static __always_inline void _local_interrupt_enable(void)
@@ -46,27 +43,30 @@ static __always_inline void _local_interrupt_enable(void)
 	__local_interrupt_enable();
 }
 #else
-extern void _local_interrupt_disable(void);
+extern void _local_interrupt_save_state(unsigned long flags);
 extern void _local_interrupt_enable(void);
 #endif
 
 #else /* !MODULE */
-extern void _local_interrupt_disable(void);
+extern void _local_interrupt_save_state(unsigned long flags);
 extern void _local_interrupt_enable(void);
 #endif /* !MODULE */
 
+#define hardirq_disable_enter()	__preempt_count_add_return(HARDIRQ_DISABLE_OFFSET)
+#define hardirq_disable_exit()	__preempt_count_sub_return(HARDIRQ_DISABLE_OFFSET)
+
 static inline void local_interrupt_disable(void)
 {
 	int new_count;
+	unsigned long flags;
 
 	WARN_ON_ONCE(in_nmi());
 
+	local_irq_save(flags);
 	new_count = hardirq_disable_enter();
 
-	/* Interrupts can happen here, but it's OK, see __irq_exit_rcu(). */
-
 	if ((new_count & HARDIRQ_DISABLE_MASK) == HARDIRQ_DISABLE_OFFSET)
-		_local_interrupt_disable();
+		_local_interrupt_save_state(flags);
 }
 
 static inline void local_interrupt_enable(void)
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 73c25d40846c..3ba75a4ed3da 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -752,24 +752,6 @@ static inline void msi_device_domain_free_wired(struct irq_domain *domain, unsig
 }
 #endif
 
-static inline struct irq_domain *irq_domain_add_linear(struct device_node *of_node,
-						       unsigned int size,
-						       const struct irq_domain_ops *ops,
-						       void *host_data)
-{
-	struct irq_domain_info info = {
-		.fwnode		= of_fwnode_handle(of_node),
-		.size		= size,
-		.hwirq_max	= size,
-		.ops		= ops,
-		.host_data	= host_data,
-	};
-	struct irq_domain *d;
-
-	d = irq_domain_instantiate(&info);
-	return IS_ERR(d) ? NULL : d;
-}
-
 #else /* CONFIG_IRQ_DOMAIN */
 static inline void irq_dispose_mapping(unsigned int virq) { }
 static inline struct irq_domain *irq_find_matching_fwnode(struct fwnode_handle *fwnode,
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 8c4f3bb24429..e6de7ae55bda 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -181,6 +181,7 @@ struct kprobe_blacklist_entry {
 	struct list_head list;
 	unsigned long start_addr;
 	unsigned long end_addr;
+	struct rcu_head rcu;
 };
 
 #ifdef CONFIG_KPROBES
diff --git a/include/linux/nvme-tcp.h b/include/linux/nvme-tcp.h
index e435250fcb4d..859338da8573 100644
--- a/include/linux/nvme-tcp.h
+++ b/include/linux/nvme-tcp.h
@@ -77,7 +77,7 @@ struct nvme_tcp_hdr {
 	__le32	plen;
 };
 
-/**
+/*
  * struct nvme_tcp_icreq_pdu - nvme tcp initialize connection request pdu
  *
  * @hdr:           pdu generic header
@@ -95,7 +95,7 @@ struct nvme_tcp_icreq_pdu {
 	__u8			rsvd2[112];
 };
 
-/**
+/*
  * struct nvme_tcp_icresp_pdu - nvme tcp initialize connection response pdu
  *
  * @hdr:           pdu common header
@@ -113,12 +113,13 @@ struct nvme_tcp_icresp_pdu {
 	__u8			rsvd[112];
 };
 
-/**
+/*
  * struct nvme_tcp_term_pdu - nvme tcp terminate connection pdu
  *
  * @hdr:           pdu common header
  * @fes:           fatal error status
- * @fei:           fatal error information
+ * @feil:          fatal error information (low 16 bits)
+ * @feih:          fatal error information (high 16 bits)
  */
 struct nvme_tcp_term_pdu {
 	struct nvme_tcp_hdr	hdr;
@@ -128,7 +129,7 @@ struct nvme_tcp_term_pdu {
 	__u8			rsvd[10];
 };
 
-/**
+/*
  * struct nvme_tcp_cmd_pdu - nvme tcp command capsule pdu
  *
  * @hdr:           pdu common header
@@ -139,10 +140,9 @@ struct nvme_tcp_cmd_pdu {
 	struct nvme_command	cmd;
 };
 
-/**
+/*
  * struct nvme_tcp_rsp_pdu - nvme tcp response capsule pdu
  *
- * @hdr:           pdu common header
  * @hdr:           nvme-tcp generic header
  * @cqe:           nvme completion queue entry
  */
@@ -151,7 +151,7 @@ struct nvme_tcp_rsp_pdu {
 	struct nvme_completion	cqe;
 };
 
-/**
+/*
  * struct nvme_tcp_r2t_pdu - nvme tcp ready-to-transfer pdu
  *
  * @hdr:           pdu common header
@@ -169,7 +169,7 @@ struct nvme_tcp_r2t_pdu {
 	__u8			rsvd[4];
 };
 
-/**
+/*
  * struct nvme_tcp_data_pdu - nvme tcp data pdu
  *
  * @hdr:           pdu common header
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index 8299657f0f86..2e689de7b29a 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -168,10 +168,6 @@ static __always_inline unsigned char interrupt_context_level(void)
 #define in_softirq()		(softirq_count())
 #define in_interrupt()		(irq_count())
 
-#define hardirq_disable_count()	((preempt_count() & HARDIRQ_DISABLE_MASK) >> HARDIRQ_DISABLE_SHIFT)
-#define hardirq_disable_enter()	__preempt_count_add_return(HARDIRQ_DISABLE_OFFSET)
-#define hardirq_disable_exit()	__preempt_count_sub_return(HARDIRQ_DISABLE_OFFSET)
-
 /*
  * The preempt_count offset after preempt_disable();
  */
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index 0670742b2d60..afc7daa6ee7d 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -218,14 +218,15 @@ bool ring_buffer_time_stamp_abs(struct trace_buffer *buffer);
 size_t ring_buffer_nr_dirty_pages(struct trace_buffer *buffer, int cpu);
 
 struct buffer_data_read_page;
-struct buffer_data_read_page *
-ring_buffer_alloc_read_page(struct trace_buffer *buffer, int cpu);
+int ring_buffer_alloc_read_page(struct trace_buffer *buffer, int cpu,
+				struct buffer_data_read_page **rpage);
 void ring_buffer_free_read_page(struct trace_buffer *buffer, int cpu,
 				struct buffer_data_read_page *page);
 int ring_buffer_read_page(struct trace_buffer *buffer,
 			  struct buffer_data_read_page *data_page,
 			  size_t len, int cpu, int full);
 void *ring_buffer_read_page_data(struct buffer_data_read_page *page);
+unsigned int ring_buffer_read_page_size(struct buffer_data_read_page *rpage);
 
 struct trace_seq;
 
diff --git a/include/linux/sched/rt.h b/include/linux/sched/rt.h
index 4e3338103654..922935cc3383 100644
--- a/include/linux/sched/rt.h
+++ b/include/linux/sched/rt.h
@@ -52,8 +52,10 @@ static inline bool rt_or_dl_task_policy(struct task_struct *tsk)
 
 #ifdef CONFIG_RT_MUTEXES
 extern void rt_mutex_pre_schedule(void);
+extern void rt_mutex_futex_pre_schedule(void);
 extern void rt_mutex_schedule(void);
 extern void rt_mutex_post_schedule(void);
+extern void rt_mutex_futex_post_schedule(void);
 
 /*
  * Must hold either p->pi_lock or task_rq(p)->lock.
diff --git a/include/linux/sched/user.h b/include/linux/sched/user.h
index 4cc52698e214..8d7e5521f7cd 100644
--- a/include/linux/sched/user.h
+++ b/include/linux/sched/user.h
@@ -25,7 +25,8 @@ struct user_struct {
 
 #if defined(CONFIG_PERF_EVENTS) || defined(CONFIG_BPF_SYSCALL) || \
 	defined(CONFIG_NET) || defined(CONFIG_IO_URING) || \
-	defined(CONFIG_VFIO_PCI_ZDEV_KVM) || IS_ENABLED(CONFIG_IOMMUFD)
+	defined(CONFIG_VFIO_PCI_ZDEV_KVM) || IS_ENABLED(CONFIG_IOMMUFD) || \
+	defined(CONFIG_SECRETMEM)
 	atomic_long_t locked_vm;
 #endif
 #ifdef CONFIG_WATCH_QUEUE
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 671c13494566..421f6fc45451 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3082,6 +3082,11 @@ static inline bool skb_transport_header_was_set(const struct sk_buff *skb)
 	return skb->transport_header != (typeof(skb->transport_header))~0U;
 }
 
+static inline void skb_unset_transport_header(struct sk_buff *skb)
+{
+	skb->transport_header = (typeof(skb->transport_header))~0U;
+}
+
 static inline unsigned char *skb_transport_header(const struct sk_buff *skb)
 {
 	DEBUG_NET_WARN_ON_ONCE(!skb_transport_header_was_set(skb));