Merge tag 'irqchip-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates from Marc Zyngier:

   - New and improved irqdomain locking, closing a number of races that
     became apparent now that we are able to probe drivers in parallel

   - A bunch of OF node refcounting bugs have been fixed

   - We now have a new IPI mux, lifted from the Apple AIC code and
     made common. It is expected that riscv will eventually benefit
     from it

   - Two small fixes for the Broadcom L2 drivers

   - Various cleanups and minor bug fixes

Link: https://lore.kernel.org/r/20230218143452.3817627-1-maz@kernel.org

7 files changed, 16 insertions, 11 deletions

diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index 9ec81290e3c8..bd5560542c79 100644
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -105,14 +105,14 @@ int elf_core_copy_task_fpregs(struct task_struct *t, elf_fpregset_t *fpu);
  * Dumping its extra ELF program headers includes all the other information
  * a debugger needs to easily find how the gate DSO was being used.
  */
-extern Elf_Half elf_core_extra_phdrs(void);
+extern Elf_Half elf_core_extra_phdrs(struct coredump_params *cprm);
 extern int
 elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset);
 extern int
 elf_core_write_extra_data(struct coredump_params *cprm);
-extern size_t elf_core_extra_data_size(void);
+extern size_t elf_core_extra_data_size(struct coredump_params *cprm);
 #else
-static inline Elf_Half elf_core_extra_phdrs(void)
+static inline Elf_Half elf_core_extra_phdrs(struct coredump_params *cprm)
 {
 	return 0;
 }
@@ -127,7 +127,7 @@ static inline int elf_core_write_extra_data(struct coredump_params *cprm)
 	return 1;
 }
 
-static inline size_t elf_core_extra_data_size(void)
+static inline size_t elf_core_extra_data_size(struct coredump_params *cprm)
 {
 	return 0;
 }
diff --git a/include/linux/irq.h b/include/linux/irq.h
index c3eb89606c2b..b1b28affb32a 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -1266,6 +1266,9 @@ int __ipi_send_mask(struct irq_desc *desc, const struct cpumask *dest);
 int ipi_send_single(unsigned int virq, unsigned int cpu);
 int ipi_send_mask(unsigned int virq, const struct cpumask *dest);
 
+void ipi_mux_process(void);
+int ipi_mux_create(unsigned int nr_ipi, void (*mux_send)(unsigned int cpu));
+
 #ifdef CONFIG_GENERIC_IRQ_MULTI_HANDLER
 /*
  * Registers a generic IRQ handling function as the top-level IRQ handler in
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index a372086750ca..d320d15d4fba 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -125,6 +125,8 @@ struct irq_domain_chip_generic;
  *		core code.
  * @flags:	Per irq_domain flags
  * @mapcount:	The number of mapped interrupts
+ * @mutex:	Domain lock, hierarchical domains use root domain's lock
+ * @root:	Pointer to root domain, or containing structure if non-hierarchical
  *
  * Optional elements:
  * @fwnode:	Pointer to firmware node associated with the irq_domain. Pretty easy
@@ -143,7 +145,6 @@ struct irq_domain_chip_generic;
  * Revmap data, used internally by the irq domain code:
  * @revmap_size:	Size of the linear map table @revmap[]
  * @revmap_tree:	Radix map tree for hwirqs that don't fit in the linear map
- * @revmap_mutex:	Lock for the revmap
  * @revmap:		Linear table of irq_data pointers
  */
 struct irq_domain {
@@ -153,6 +154,8 @@ struct irq_domain {
 	void				*host_data;
 	unsigned int			flags;
 	unsigned int			mapcount;
+	struct mutex			mutex;
+	struct irq_domain		*root;
 
 	/* Optional data */
 	struct fwnode_handle		*fwnode;
@@ -171,7 +174,6 @@ struct irq_domain {
 	irq_hw_number_t			hwirq_max;
 	unsigned int			revmap_size;
 	struct radix_tree_root		revmap_tree;
-	struct mutex			revmap_mutex;
 	struct irq_data __rcu		*revmap[];
 };
 
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index d476255c9a3f..76ef2e4fde38 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -315,7 +315,7 @@ struct mlx5_cmd {
 	struct mlx5_cmd_debug dbg;
 	struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES];
 	int checksum_disabled;
-	struct mlx5_cmd_stats *stats;
+	struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX];
 };
 
 struct mlx5_cmd_mailbox {
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index 25765556223a..a3f8cdca90c8 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -7,7 +7,6 @@
 #define __LINUX_MTD_SPI_NOR_H
 
 #include <linux/bitops.h>
-#include <linux/mtd/cfi.h>
 #include <linux/mtd/mtd.h>
 #include <linux/spi/spi-mem.h>
 
diff --git a/include/linux/platform_data/x86/simatic-ipc.h b/include/linux/platform_data/x86/simatic-ipc.h
index 632320ec8f08..a48bb5240977 100644
--- a/include/linux/platform_data/x86/simatic-ipc.h
+++ b/include/linux/platform_data/x86/simatic-ipc.h
@@ -32,7 +32,8 @@ enum simatic_ipc_station_ids {
 	SIMATIC_IPC_IPC477E = 0x00000A02,
 	SIMATIC_IPC_IPC127E = 0x00000D01,
 	SIMATIC_IPC_IPC227G = 0x00000F01,
-	SIMATIC_IPC_IPC427G = 0x00001001,
+	SIMATIC_IPC_IPCBX_39A = 0x00001001,
+	SIMATIC_IPC_IPCPX_39A = 0x00001002,
 };
 
 static inline u32 simatic_ipc_get_station_id(u8 *data, int max_len)
diff --git a/include/linux/tpm_eventlog.h b/include/linux/tpm_eventlog.h
index 20c0ff54b7a0..7d68a5cc5881 100644
--- a/include/linux/tpm_eventlog.h
+++ b/include/linux/tpm_eventlog.h
@@ -198,8 +198,8 @@ static __always_inline int __calc_tpm2_event_size(struct tcg_pcr_event2_head *ev
 	 * The loop below will unmap these fields if the log is larger than
 	 * one page, so save them here for reference:
 	 */
-	count = READ_ONCE(event->count);
-	event_type = READ_ONCE(event->event_type);
+	count = event->count;
+	event_type = event->event_type;
 
 	/* Verify that it's the log header */
 	if (event_header->pcr_idx != 0 ||