Merge tag 'v5.15.104' into 5.15-2.2.x-imx

This is the 5.15.104 stable release

Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>

6 files changed, 20 insertions, 14 deletions

diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 1648ce265cba..c84783cd5abd 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -447,11 +447,11 @@ struct drm_bridge_funcs {
 	 *
 	 * The returned array must be allocated with kmalloc() and will be
 	 * freed by the caller. If the allocation fails, NULL should be
-	 * returned. num_output_fmts must be set to the returned array size.
+	 * returned. num_input_fmts must be set to the returned array size.
 	 * Formats listed in the returned array should be listed in decreasing
 	 * preference order (the core will try all formats until it finds one
 	 * that works). When the format is not supported NULL should be
-	 * returned and num_output_fmts should be set to 0.
+	 * returned and num_input_fmts should be set to 0.
 	 *
 	 * This method is called on all elements of the bridge chain as part of
 	 * the bus format negotiation process that happens in
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 3cfbffd94a05..c3478e396829 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -805,6 +805,7 @@ struct hid_driver {
  * @output_report: send output report to device
  * @idle: send idle request to device
  * @may_wakeup: return if device may act as a wakeup source during system-suspend
+ * @max_buffer_size: over-ride maximum data buffer size (default: HID_MAX_BUFFER_SIZE)
  */
 struct hid_ll_driver {
 	int (*start)(struct hid_device *hdev);
@@ -830,6 +831,8 @@ struct hid_ll_driver {
 
 	int (*idle)(struct hid_device *hdev, int report, int idle, int reqtype);
 	bool (*may_wakeup)(struct hid_device *hdev);
+
+	unsigned int max_buffer_size;
 };
 
 extern struct hid_ll_driver i2c_hid_ll_driver;
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index bf516d8ed076..cd6409eeaab1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -275,9 +275,11 @@ struct hh_cache {
  * relationship HH alignment <= LL alignment.
  */
 #define LL_RESERVED_SPACE(dev) \
-	((((dev)->hard_header_len+(dev)->needed_headroom)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
+	((((dev)->hard_header_len + READ_ONCE((dev)->needed_headroom)) \
+	  & ~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
 #define LL_RESERVED_SPACE_EXTRA(dev,extra) \
-	((((dev)->hard_header_len+(dev)->needed_headroom+(extra))&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
+	((((dev)->hard_header_len + READ_ONCE((dev)->needed_headroom) + (extra)) \
+	  & ~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
 
 struct header_ops {
 	int	(*create) (struct sk_buff *skb, struct net_device *dev,
diff --git a/include/linux/pci.h b/include/linux/pci.h
index c485903e39be..e1986e68ecc6 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1390,6 +1390,7 @@ void pci_bus_add_resource(struct pci_bus *bus, struct resource *res,
 			  unsigned int flags);
 struct resource *pci_bus_resource_n(const struct pci_bus *bus, int n);
 void pci_bus_remove_resources(struct pci_bus *bus);
+void pci_bus_remove_resource(struct pci_bus *bus, struct resource *res);
 int devm_request_pci_bus_resources(struct device *dev,
 				   struct list_head *resources);
 
diff --git a/include/linux/sh_intc.h b/include/linux/sh_intc.h
index c255273b0281..37ad81058d6a 100644
--- a/include/linux/sh_intc.h
+++ b/include/linux/sh_intc.h
@@ -97,7 +97,10 @@ struct intc_hw_desc {
 	unsigned int nr_subgroups;
 };
 
-#define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
+#define _INTC_SIZEOF_OR_ZERO(a) (_Generic(a,                 \
+                                 typeof(NULL):  0,           \
+                                 default:       sizeof(a)))
+#define _INTC_ARRAY(a) a, _INTC_SIZEOF_OR_ZERO(a)/sizeof(*a)
 
 #define INTC_HW_DESC(vectors, groups, mask_regs,	\
 		     prio_regs,	sense_regs, ack_regs)	\
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 28031b15f878..cd01da18e405 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -231,12 +231,11 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p)
  * not add unwanted padding between the beginning of the section and the
  * structure. Force alignment to the same alignment as the section start.
  *
- * When lockdep is enabled, we make sure to always do the RCU portions of
- * the tracepoint code, regardless of whether tracing is on. However,
- * don't check if the condition is false, due to interaction with idle
- * instrumentation. This lets us find RCU issues triggered with tracepoints
- * even when this tracepoint is off. This code has no purpose other than
- * poking RCU a bit.
+ * When lockdep is enabled, we make sure to always test if RCU is
+ * "watching" regardless if the tracepoint is enabled or not. Tracepoints
+ * require RCU to be active, and it should always warn at the tracepoint
+ * site if it is not watching, as it will need to be active when the
+ * tracepoint is enabled.
  */
 #define __DECLARE_TRACE(name, proto, args, cond, data_proto)		\
 	extern int __traceiter_##name(data_proto);			\
@@ -249,9 +248,7 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p)
 				TP_ARGS(args),				\
 				TP_CONDITION(cond), 0);			\
 		if (IS_ENABLED(CONFIG_LOCKDEP) && (cond)) {		\
-			rcu_read_lock_sched_notrace();			\
-			rcu_dereference_sched(__tracepoint_##name.funcs);\
-			rcu_read_unlock_sched_notrace();		\
+			WARN_ON_ONCE(!rcu_is_watching());		\
 		}							\
 	}								\
 	__DECLARE_TRACE_RCU(name, PARAMS(proto), PARAMS(args),		\