Merge fdo/drm/drm-fixes into drm-misc-fixes

Backmerging to get drm-misc-fixes up to v7.3-rc3.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

12 files changed, 71 insertions, 45 deletions

diff --git a/include/linux/console.h b/include/linux/console.h
index d624200cfc17..502d1abe3f50 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -173,7 +173,7 @@ static inline void con_debug_leave(void) { }
  * @CON_BRL:		Indicates a braille device which is exempt from
  *			receiving the printk spam for obvious reasons.
  * @CON_EXTENDED:	The console supports the extended output format of
- *			/dev/kmesg which requires a larger output buffer.
+ *			/dev/kmsg which requires a larger output buffer.
  * @CON_SUSPENDED:	Indicates if a console is suspended. If true, the
  *			printing callbacks must not be called.
  * @CON_NBCON:		Console can operate outside of the legacy style console_lock
diff --git a/include/linux/entry-common.h b/include/linux/entry-common.h
index 6574b7183c01..fa2854fed1f2 100644
--- a/include/linux/entry-common.h
+++ b/include/linux/entry-common.h
@@ -102,7 +102,14 @@ static __always_inline long syscall_trace_enter(struct pt_regs *regs, unsigned l
 	if (unlikely(work & SYSCALL_WORK_SYSCALL_TRACEPOINT))
 		trace_syscall_enter(regs);
 
-	if (unlikely(audit_context()))
+	/*
+	 * The config check works around broken compilers which fail to
+	 * eliminate the dead code in case of CONFIG_AUDITSYSCALL=n as they
+	 * insist on creating a always false runtime condition based on
+	 * audit_context() which returns NULL in that case. The explicit
+	 * IS_ENABLED() check makes that madness go away.
+	 */
+	if (IS_ENABLED(CONFIG_AUDITSYSCALL) && unlikely(audit_context()))
 		syscall_enter_audit(regs);
 
 	return true;
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 12683b5d125e..253600c0eccd 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -1057,6 +1057,12 @@ struct kernel_ethtool_ts_info {
  * @get_sset_count: Get number of strings that @get_strings will write.
  * @get_rxnfc: Get RX flow classification rules.  Returns a negative
  *	error code or zero.
+ *	Note that for %ETHTOOL_GRXCLSRLALL rule_cnt and size of the arrays
+ *	is user-provided, and not guaranteed to match what driver would
+ *	have reported via %ETHTOOL_GRXCLSRLCNT. Drivers must return -%EMSGSIZE
+ *	when rule_cnt is too small. rule_locs is %NULL when rule_cnt is zero.
+ *	On success drivers must set rule_cnt to the number of locations they
+ *	filled in, the core copies out exactly that many.
  * @set_rxnfc: Set RX flow classification rules.  Returns a negative
  *	error code or zero.
  * @flash_device: Write a firmware image to device's flash memory.
diff --git a/include/linux/netfilter_arp/arp_tables.h b/include/linux/netfilter_arp/arp_tables.h
index 05631a25e622..8b8d472eff34 100644
--- a/include/linux/netfilter_arp/arp_tables.h
+++ b/include/linux/netfilter_arp/arp_tables.h
@@ -56,23 +56,4 @@ void arpt_unregister_table(struct net *net, const char *name);
 extern unsigned int arpt_do_table(void *priv, struct sk_buff *skb,
 				  const struct nf_hook_state *state);
 
-#ifdef CONFIG_NETFILTER_XTABLES_COMPAT
-#include <net/compat.h>
-
-struct compat_arpt_entry {
-	struct arpt_arp arp;
-	__u16 target_offset;
-	__u16 next_offset;
-	compat_uint_t comefrom;
-	struct compat_xt_counters counters;
-	unsigned char elems[];
-};
-
-static inline struct xt_entry_target *
-compat_arpt_get_target(struct compat_arpt_entry *e)
-{
-	return (void *)e + e->target_offset;
-}
-
-#endif /* CONFIG_COMPAT */
 #endif /* _ARPTABLES_H */
diff --git a/include/linux/netfs.h b/include/linux/netfs.h
index f837a501008c..b4dd32863dd4 100644
--- a/include/linux/netfs.h
+++ b/include/linux/netfs.h
@@ -246,6 +246,7 @@ struct netfs_io_request {
 	unsigned long long	submitted;	/* Amount submitted for I/O so far */
 	unsigned long long	len;		/* Length of the request */
 	size_t			transferred;	/* Amount to be indicated as transferred */
+	size_t			progress_at;	/* Report read progress when hit this much read */
 	long			error;		/* 0 or error that occurred */
 	unsigned long long	i_size;		/* Size of the file */
 	unsigned long long	start;		/* Start position */
@@ -262,7 +263,6 @@ struct netfs_io_request {
 	atomic_t		subreq_counter;	/* Next subreq->debug_index */
 	unsigned int		nr_group_rel;	/* Number of refs to release on ->group */
 	spinlock_t		lock;		/* Lock for queuing subreqs */
-	unsigned char		front_folio_order; /* Order (size) of front folio */
 	enum netfs_io_origin	origin;		/* Origin of the request */
 	bool			direct_bv_unpin; /* T if direct_bv[] must be unpinned */
 	refcount_t		ref;
@@ -275,9 +275,10 @@ struct netfs_io_request {
 #define NETFS_RREQ_SHORT_TRANSFER	5	/* Set if we have a short transfer */
 #define NETFS_RREQ_OFFLOAD_COLLECTION	8	/* Offload collection to workqueue */
 #define NETFS_RREQ_NO_UNLOCK_FOLIO	9	/* Don't unlock no_unlock_folio on completion */
-#define NETFS_RREQ_FOLIO_COPY_TO_CACHE	10	/* Copy current folio to cache from read */
+#define NETFS_RREQ_CANCEL_CACHING	10	/* Set to cancel caching */
 #define NETFS_RREQ_UPLOAD_TO_SERVER	11	/* Need to write to the server */
 #define NETFS_RREQ_USE_IO_ITER		12	/* Use ->io_iter rather than ->i_pages */
+#define NETFS_RREQ_NEED_PUT_RA_REFS	17	/* Need to put the folio refs RA gave us */
 #define NETFS_RREQ_USE_PGPRIV2		31	/* [DEPRECATED] Use PG_private_2 to mark
 						 * write to cache on read */
 	const struct netfs_request_ops *netfs_ops;
diff --git a/include/linux/ns/ns_common_types.h b/include/linux/ns/ns_common_types.h
index ea45c54e4435..6ed6b497831c 100644
--- a/include/linux/ns/ns_common_types.h
+++ b/include/linux/ns/ns_common_types.h
@@ -116,10 +116,8 @@ struct ns_common {
 	struct dentry *stashed;
 	const struct proc_ns_operations *ops;
 	unsigned int inum;
-	union {
-		struct ns_tree;
-		struct rcu_head ns_rcu;
-	};
+	struct ns_tree;
+	struct rcu_head ns_rcu;
 };
 
 #define to_ns_common(__ns)                                    \
diff --git a/include/linux/perf/riscv_pmu.h b/include/linux/perf/riscv_pmu.h
index f82a28040594..ecaa40370830 100644
--- a/include/linux/perf/riscv_pmu.h
+++ b/include/linux/perf/riscv_pmu.h
@@ -55,7 +55,7 @@ struct riscv_pmu {
 
 	irqreturn_t	(*handle_irq)(int irq_num, void *dev);
 
-	unsigned long	cmask;
+	DECLARE_BITMAP(cmask, RISCV_MAX_COUNTERS);
 	u64		(*ctr_read)(struct perf_event *event);
 	int		(*ctr_get_idx)(struct perf_event *event);
 	int		(*ctr_get_width)(int idx);
diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h
index 6dbc5a1bf6a8..d2fa1c41bfd2 100644
--- a/include/linux/rbtree_augmented.h
+++ b/include/linux/rbtree_augmented.h
@@ -87,18 +87,18 @@ rb_add_augmented_cached(struct rb_node *node, struct rb_root_cached *tree,
 }
 
 /*
- * Template for declaring augmented rbtree callbacks (generic case)
+ * Template for declaring augmented rbtree callbacks (generic multi fields)
  *
  * RBSTATIC:    'static' or empty
  * RBNAME:      name of the rb_augment_callbacks structure
  * RBSTRUCT:    struct type of the tree nodes
  * RBFIELD:     name of struct rb_node field within RBSTRUCT
- * RBAUGMENTED: name of field within RBSTRUCT holding data for subtree
- * RBCOMPUTE:   name of function that recomputes the RBAUGMENTED data
+ * RBCOPY:	name of function that copies the RBAUGMENTED datas
+ * RBCOMPUTE:   name of function that recomputes the RBAUGMENTED datas
  */
 
-#define RB_DECLARE_CALLBACKS(RBSTATIC, RBNAME,				\
-			     RBSTRUCT, RBFIELD, RBAUGMENTED, RBCOMPUTE)	\
+#define RB_DECLARE_CALLBACKS_MULTI(RBSTATIC, RBNAME,			\
+			     RBSTRUCT, RBFIELD, RBCOPY, RBCOMPUTE)	\
 static inline void							\
 RBNAME ## _propagate(struct rb_node *rb, struct rb_node *stop)		\
 {									\
@@ -114,14 +114,14 @@ RBNAME ## _copy(struct rb_node *rb_old, struct rb_node *rb_new)		\
 {									\
 	RBSTRUCT *old = rb_entry(rb_old, RBSTRUCT, RBFIELD);		\
 	RBSTRUCT *new = rb_entry(rb_new, RBSTRUCT, RBFIELD);		\
-	new->RBAUGMENTED = old->RBAUGMENTED;				\
+	RBCOPY(new, old);						\
 }									\
 static void								\
 RBNAME ## _rotate(struct rb_node *rb_old, struct rb_node *rb_new)	\
 {									\
 	RBSTRUCT *old = rb_entry(rb_old, RBSTRUCT, RBFIELD);		\
 	RBSTRUCT *new = rb_entry(rb_new, RBSTRUCT, RBFIELD);		\
-	new->RBAUGMENTED = old->RBAUGMENTED;				\
+	RBCOPY(new, old);						\
 	RBCOMPUTE(old, false);						\
 }									\
 RBSTATIC const struct rb_augment_callbacks RBNAME = {			\
@@ -131,6 +131,27 @@ RBSTATIC const struct rb_augment_callbacks RBNAME = {			\
 };
 
 /*
+ * Template for declaring augmented rbtree callbacks (generic single field)
+ *
+ * RBSTATIC:    'static' or empty
+ * RBNAME:      name of the rb_augment_callbacks structure
+ * RBSTRUCT:    struct type of the tree nodes
+ * RBFIELD:     name of struct rb_node field within RBSTRUCT
+ * RBAUGMENTED: name of field within RBSTRUCT holding data for subtree
+ * RBCOMPUTE:   name of function that recomputes the RBAUGMENTED data
+ */
+
+#define RB_DECLARE_CALLBACKS(RBSTATIC, RBNAME,				\
+			     RBSTRUCT, RBFIELD, RBAUGMENTED, RBCOMPUTE)	\
+static inline void							\
+RBNAME ## _copy_single(RBSTRUCT *new, RBSTRUCT *old)			\
+{									\
+	new->RBAUGMENTED = old->RBAUGMENTED;				\
+}									\
+RB_DECLARE_CALLBACKS_MULTI(RBSTATIC, RBNAME,				\
+		     RBSTRUCT, RBFIELD, RBNAME ## _copy_single, RBCOMPUTE)
+
+/*
  * Template for declaring augmented rbtree callbacks,
  * computing RBAUGMENTED scalar as max(RBCOMPUTE(node)) for all subtree nodes.
  *
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index afc7daa6ee7d..eac3e9080c3c 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -3,8 +3,9 @@
 #define _LINUX_RING_BUFFER_H
 
 #include <linux/mm.h>
-#include <linux/seq_file.h>
 #include <linux/poll.h>
+#include <linux/ring_buffer_types.h>
+#include <linux/seq_file.h>
 
 #include <uapi/linux/trace_mmap.h>
 
@@ -279,11 +280,25 @@ static inline struct ring_buffer_desc *__first_ring_buffer_desc(struct trace_buf
 	return (struct ring_buffer_desc *)(&desc->__data[0]);
 }
 
+/*
+ * Returns the number of pages for a ring_buffer_desc. The caller must ensure it
+ * does not overflow ring_buffer_desc::nr_page_va.
+ */
+static inline unsigned long __calc_nr_pages_ring_buffer_desc(size_t size)
+{
+	/* Takes into account the reader page */
+	return max(DIV_ROUND_UP(size, PAGE_SIZE - BUF_PAGE_HDR_SIZE), 2UL) + 1;
+}
+
 static inline size_t trace_buffer_desc_size(size_t buffer_size, unsigned int nr_cpus)
 {
-	unsigned int nr_pages = max(DIV_ROUND_UP(buffer_size, PAGE_SIZE), 2UL) + 1;
+	unsigned long nr_pages = __calc_nr_pages_ring_buffer_desc(buffer_size);
 	struct ring_buffer_desc *rbdesc;
 
+	/* Capped by ring_buffer_desc::nr_page_va */
+	if (nr_pages > UINT_MAX)
+		return SIZE_MAX;
+
 	return size_add(offsetof(struct trace_buffer_desc, __data),
 			size_mul(nr_cpus, struct_size(rbdesc, page_va, nr_pages)));
 }
diff --git a/include/linux/rolling_buffer.h b/include/linux/rolling_buffer.h
index 9e5dad29669c..a97f7cfaacaa 100644
--- a/include/linux/rolling_buffer.h
+++ b/include/linux/rolling_buffer.h
@@ -45,9 +45,9 @@ struct rolling_buffer_snapshot {
 int rolling_buffer_init(struct rolling_buffer *roll, unsigned int rreq_id,
 			unsigned int direction, gfp_t gfp);
 int rolling_buffer_make_space(struct rolling_buffer *roll, gfp_t gfp);
-ssize_t rolling_buffer_load_from_ra(struct rolling_buffer *roll,
-				    struct readahead_control *ractl,
-				    struct folio_batch *put_batch);
+ssize_t rolling_buffer_bulk_load_from_ra(struct rolling_buffer *roll,
+					 struct readahead_control *ractl,
+					 unsigned int rreq_id, gfp_t gfp);
 ssize_t rolling_buffer_append(struct rolling_buffer *roll, struct folio *folio,
 			      unsigned int flags, gfp_t gfp);
 struct folio_queue *rolling_buffer_delete_spent(struct rolling_buffer *roll);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8b3d47a325cc..705970d07614 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1787,7 +1787,7 @@ static inline bool is_lazy_mmu_mode_active(void)
 }
 #endif
 
-extern struct pid *cad_pid;
+extern struct pid __rcu *cad_pid;
 
 /*
  * Per process flags
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index 584ae88b435e..d45a5476b97d 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -562,10 +562,7 @@ static inline sigset_t *sigmask_to_save(void)
 	return res;
 }
 
-static inline int kill_cad_pid(int sig, int priv)
-{
-	return kill_pid(cad_pid, sig, priv);
-}
+int kill_cad_pid(int sig, int priv);
 
 /* These can be the second arg to send_sig_info/send_group_sig_info.  */
 #define SEND_SIG_NOINFO ((struct kernel_siginfo *) 0)