Merge branch 'kbuild-6.19.fms.extension'

Bring in the shared branch with the kbuild tree to enable
'-fms-extensions' for 6.19. Further namespace cleanup work
requires this extension.

Signed-off-by: Christian Brauner <brauner@kernel.org>

10 files changed, 49 insertions, 15 deletions

diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h
index cd7ee4df9045..81e603839c4a 100644
--- a/include/linux/arm_ffa.h
+++ b/include/linux/arm_ffa.h
@@ -338,6 +338,7 @@ struct ffa_mem_region_attributes {
 	 * an `struct ffa_mem_region_addr_range`.
 	 */
 	u32 composite_off;
+	u8 impdef_val[16];
 	u64 reserved;
 };
 
@@ -417,15 +418,31 @@ struct ffa_mem_region {
 #define CONSTITUENTS_OFFSET(x)	\
 	(offsetof(struct ffa_composite_mem_region, constituents[x]))
 
+#define FFA_EMAD_HAS_IMPDEF_FIELD(version)	((version) >= FFA_VERSION_1_2)
+#define FFA_MEM_REGION_HAS_EP_MEM_OFFSET(version) ((version) > FFA_VERSION_1_0)
+
+static inline u32 ffa_emad_size_get(u32 ffa_version)
+{
+	u32 sz;
+	struct ffa_mem_region_attributes *ep_mem_access;
+
+	if (FFA_EMAD_HAS_IMPDEF_FIELD(ffa_version))
+		sz = sizeof(*ep_mem_access);
+	else
+		sz = sizeof(*ep_mem_access) - sizeof(ep_mem_access->impdef_val);
+
+	return sz;
+}
+
 static inline u32
 ffa_mem_desc_offset(struct ffa_mem_region *buf, int count, u32 ffa_version)
 {
-	u32 offset = count * sizeof(struct ffa_mem_region_attributes);
+	u32 offset = count * ffa_emad_size_get(ffa_version);
 	/*
 	 * Earlier to v1.1, the endpoint memory descriptor array started at
 	 * offset 32(i.e. offset of ep_mem_offset in the current structure)
 	 */
-	if (ffa_version <= FFA_VERSION_1_0)
+	if (!FFA_MEM_REGION_HAS_EP_MEM_OFFSET(ffa_version))
 		offset += offsetof(struct ffa_mem_region, ep_mem_offset);
 	else
 		offset += sizeof(struct ffa_mem_region);
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 93318fce31f3..b760a3c470a5 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -452,7 +452,7 @@ struct cgroup_freezer_state {
 	int nr_frozen_tasks;
 
 	/* Freeze time data consistency protection */
-	seqcount_t freeze_seq;
+	seqcount_spinlock_t freeze_seq;
 
 	/*
 	 * Most recent time the cgroup was requested to freeze.
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index d0cf10d5e0f7..f0cf2714ec52 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -320,9 +320,6 @@ static inline bool exportfs_can_decode_fh(const struct export_operations *nop)
 static inline bool exportfs_can_encode_fh(const struct export_operations *nop,
 					  int fh_flags)
 {
-	if (!nop)
-		return false;
-
 	/*
 	 * If a non-decodeable file handle was requested, we only need to make
 	 * sure that filesystem did not opt-out of encoding fid.
@@ -330,6 +327,10 @@ static inline bool exportfs_can_encode_fh(const struct export_operations *nop,
 	if (fh_flags & EXPORT_FH_FID)
 		return exportfs_can_encode_fid(nop);
 
+	/* Normal file handles cannot be created without export ops */
+	if (!nop)
+		return false;
+
 	/*
 	 * If a connectable file handle was requested, we need to make sure that
 	 * filesystem can also decode connected file handles.
diff --git a/include/linux/gpio/regmap.h b/include/linux/gpio/regmap.h
index 622a2939ebe0..87983a5f3681 100644
--- a/include/linux/gpio/regmap.h
+++ b/include/linux/gpio/regmap.h
@@ -38,6 +38,10 @@ struct regmap;
  *			offset to a register/bitmask pair. If not
  *			given the default gpio_regmap_simple_xlate()
  *			is used.
+ * @fixed_direction_output:
+ *			(Optional) Bitmap representing the fixed direction of
+ *			the GPIO lines. Useful when there are GPIO lines with a
+ *			fixed direction mixed together in the same register.
  * @drvdata:		(Optional) Pointer to driver specific data which is
  *			not used by gpio-remap but is provided "as is" to the
  *			driver callback(s).
@@ -85,6 +89,7 @@ struct gpio_regmap_config {
 	int reg_stride;
 	int ngpio_per_reg;
 	struct irq_domain *irq_domain;
+	unsigned long *fixed_direction_output;
 
 #ifdef CONFIG_REGMAP_IRQ
 	struct regmap_irq_chip *regmap_irq_chip;
diff --git a/include/linux/hung_task.h b/include/linux/hung_task.h
index 34e615c76ca5..c4403eeb7144 100644
--- a/include/linux/hung_task.h
+++ b/include/linux/hung_task.h
@@ -20,6 +20,10 @@
  * always zero. So we can use these bits to encode the specific blocking
  * type.
  *
+ * Note that on architectures where this is not guaranteed, or for any
+ * unaligned lock, this tracking mechanism is silently skipped for that
+ * lock.
+ *
  * Type encoding:
  * 00 - Blocked on mutex			(BLOCKER_TYPE_MUTEX)
  * 01 - Blocked on semaphore			(BLOCKER_TYPE_SEM)
@@ -45,7 +49,7 @@ static inline void hung_task_set_blocker(void *lock, unsigned long type)
 	 * If the lock pointer matches the BLOCKER_TYPE_MASK, return
 	 * without writing anything.
 	 */
-	if (WARN_ON_ONCE(lock_ptr & BLOCKER_TYPE_MASK))
+	if (lock_ptr & BLOCKER_TYPE_MASK)
 		return;
 
 	WRITE_ONCE(current->blocker, lock_ptr | type);
@@ -53,8 +57,6 @@ static inline void hung_task_set_blocker(void *lock, unsigned long type)
 
 static inline void hung_task_clear_blocker(void)
 {
-	WARN_ON_ONCE(!READ_ONCE(current->blocker));
-
 	WRITE_ONCE(current->blocker, 0UL);
 }
 
diff --git a/include/linux/misc_cgroup.h b/include/linux/misc_cgroup.h
index 71cf5bfc6349..0cb36a3ffc47 100644
--- a/include/linux/misc_cgroup.h
+++ b/include/linux/misc_cgroup.h
@@ -19,7 +19,7 @@ enum misc_res_type {
 	MISC_CG_RES_SEV_ES,
 #endif
 #ifdef CONFIG_INTEL_TDX_HOST
-	/* Intel TDX HKIDs resource */
+	/** @MISC_CG_RES_TDX: Intel TDX HKIDs resource */
 	MISC_CG_RES_TDX,
 #endif
 	/** @MISC_CG_RES_TYPES: count of enum misc_res_type constants */
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 07614cd95bed..1b0b36aa2a76 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -10833,7 +10833,9 @@ struct mlx5_ifc_pcam_regs_5000_to_507f_bits {
 	u8         port_access_reg_cap_mask_127_to_96[0x20];
 	u8         port_access_reg_cap_mask_95_to_64[0x20];
 
-	u8         port_access_reg_cap_mask_63_to_36[0x1c];
+	u8         port_access_reg_cap_mask_63[0x1];
+	u8         pphcr[0x1];
+	u8         port_access_reg_cap_mask_61_to_36[0x1a];
 	u8         pplm[0x1];
 	u8         port_access_reg_cap_mask_34_to_32[0x3];
 
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index a3f44f6c2da1..0b436e15f4cd 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -629,13 +629,13 @@ DEFINE_GUARD(pm_runtime_active_auto, struct device *,
  * device.
  */
 DEFINE_GUARD_COND(pm_runtime_active, _try,
-		  pm_runtime_get_active(_T, RPM_TRANSPARENT))
+		  pm_runtime_get_active(_T, RPM_TRANSPARENT), _RET == 0)
 DEFINE_GUARD_COND(pm_runtime_active, _try_enabled,
-		  pm_runtime_resume_and_get(_T))
+		  pm_runtime_resume_and_get(_T), _RET == 0)
 DEFINE_GUARD_COND(pm_runtime_active_auto, _try,
-		  pm_runtime_get_active(_T, RPM_TRANSPARENT))
+		  pm_runtime_get_active(_T, RPM_TRANSPARENT), _RET == 0)
 DEFINE_GUARD_COND(pm_runtime_active_auto, _try_enabled,
-		  pm_runtime_resume_and_get(_T))
+		  pm_runtime_resume_and_get(_T), _RET == 0)
 
 /**
  * pm_runtime_put_sync - Drop device usage counter and run "idle check" if 0.
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index fb3fec9affaa..a7cc3d1f4fd1 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -4204,6 +4204,9 @@ struct sk_buff *__skb_recv_datagram(struct sock *sk,
 				    struct sk_buff_head *sk_queue,
 				    unsigned int flags, int *off, int *err);
 struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned int flags, int *err);
+__poll_t datagram_poll_queue(struct file *file, struct socket *sock,
+			     struct poll_table_struct *wait,
+			     struct sk_buff_head *rcv_queue);
 __poll_t datagram_poll(struct file *file, struct socket *sock,
 			   struct poll_table_struct *wait);
 int skb_copy_datagram_iter(const struct sk_buff *from, int offset,
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 20e0584db1dd..4d1780848d0e 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -401,6 +401,10 @@ virtio_net_hdr_tnl_from_skb(const struct sk_buff *skb,
 	if (!tnl_hdr_negotiated)
 		return -EINVAL;
 
+        vhdr->hash_hdr.hash_value = 0;
+        vhdr->hash_hdr.hash_report = 0;
+        vhdr->hash_hdr.padding = 0;
+
 	/* Let the basic parsing deal with plain GSO features. */
 	skb_shinfo(skb)->gso_type &= ~tnl_gso_type;
 	ret = virtio_net_hdr_from_skb(skb, hdr, true, false, vlan_hlen);