Merge drm/drm-next into drm-misc-next

drm/drm-next has a build fix for the NewVision NV3052C panel
(drivers/gpu/drm/panel/panel-newvision-nv3052c.c), which needs to be
merged back to drm-misc-next, as it was failing to build there.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>

8 files changed, 36 insertions, 30 deletions

diff --git a/arch/arm64/kernel/alternative.c b/arch/arm64/kernel/alternative.c
index 3fb79b76e9d9..7bbf5104b7b7 100644
--- a/arch/arm64/kernel/alternative.c
+++ b/arch/arm64/kernel/alternative.c
@@ -42,7 +42,7 @@ bool alternative_is_applied(u16 cpufeature)
 /*
  * Check if the target PC is within an alternative block.
  */
-static bool branch_insn_requires_update(struct alt_instr *alt, unsigned long pc)
+static __always_inline bool branch_insn_requires_update(struct alt_instr *alt, unsigned long pc)
 {
 	unsigned long replptr = (unsigned long)ALT_REPL_PTR(alt);
 	return !(pc >= replptr && pc <= (replptr + alt->alt_len));
@@ -50,7 +50,7 @@ static bool branch_insn_requires_update(struct alt_instr *alt, unsigned long pc)
 
 #define align_down(x, a)	((unsigned long)(x) & ~(((unsigned long)(a)) - 1))
 
-static u32 get_alt_insn(struct alt_instr *alt, __le32 *insnptr, __le32 *altinsnptr)
+static __always_inline u32 get_alt_insn(struct alt_instr *alt, __le32 *insnptr, __le32 *altinsnptr)
 {
 	u32 insn;
 
@@ -95,7 +95,7 @@ static u32 get_alt_insn(struct alt_instr *alt, __le32 *insnptr, __le32 *altinsnp
 	return insn;
 }
 
-static void patch_alternative(struct alt_instr *alt,
+static noinstr void patch_alternative(struct alt_instr *alt,
 			      __le32 *origptr, __le32 *updptr, int nr_inst)
 {
 	__le32 *replptr;
diff --git a/arch/arm64/kernel/elfcore.c b/arch/arm64/kernel/elfcore.c
index 3ed39c61a510..2b3f3d0544b9 100644
--- a/arch/arm64/kernel/elfcore.c
+++ b/arch/arm64/kernel/elfcore.c
@@ -8,16 +8,9 @@
 #include <asm/cpufeature.h>
 #include <asm/mte.h>
 
-#ifndef VMA_ITERATOR
-#define VMA_ITERATOR(name, mm, addr)	\
-	struct mm_struct *name = mm
-#define for_each_vma(vmi, vma)		\
-	for (vma = vmi->mmap; vma; vma = vma->vm_next)
-#endif
-
-#define for_each_mte_vma(vmi, vma)					\
+#define for_each_mte_vma(tsk, vma)					\
 	if (system_supports_mte())					\
-		for_each_vma(vmi, vma)					\
+		for (vma = tsk->mm->mmap; vma; vma = vma->vm_next)	\
 			if (vma->vm_flags & VM_MTE)
 
 static unsigned long mte_vma_tag_dump_size(struct vm_area_struct *vma)
@@ -32,10 +25,11 @@ static unsigned long mte_vma_tag_dump_size(struct vm_area_struct *vma)
 static int mte_dump_tag_range(struct coredump_params *cprm,
 			      unsigned long start, unsigned long end)
 {
+	int ret = 1;
 	unsigned long addr;
+	void *tags = NULL;
 
 	for (addr = start; addr < end; addr += PAGE_SIZE) {
-		char tags[MTE_PAGE_TAG_STORAGE];
 		struct page *page = get_dump_page(addr);
 
 		/*
@@ -59,22 +53,36 @@ static int mte_dump_tag_range(struct coredump_params *cprm,
 			continue;
 		}
 
+		if (!tags) {
+			tags = mte_allocate_tag_storage();
+			if (!tags) {
+				put_page(page);
+				ret = 0;
+				break;
+			}
+		}
+
 		mte_save_page_tags(page_address(page), tags);
 		put_page(page);
-		if (!dump_emit(cprm, tags, MTE_PAGE_TAG_STORAGE))
-			return 0;
+		if (!dump_emit(cprm, tags, MTE_PAGE_TAG_STORAGE)) {
+			mte_free_tag_storage(tags);
+			ret = 0;
+			break;
+		}
 	}
 
-	return 1;
+	if (tags)
+		mte_free_tag_storage(tags);
+
+	return ret;
 }
 
 Elf_Half elf_core_extra_phdrs(void)
 {
 	struct vm_area_struct *vma;
 	int vma_count = 0;
-	VMA_ITERATOR(vmi, current->mm, 0);
 
-	for_each_mte_vma(vmi, vma)
+	for_each_mte_vma(current, vma)
 		vma_count++;
 
 	return vma_count;
@@ -83,9 +91,8 @@ Elf_Half elf_core_extra_phdrs(void)
 int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
 {
 	struct vm_area_struct *vma;
-	VMA_ITERATOR(vmi, current->mm, 0);
 
-	for_each_mte_vma(vmi, vma) {
+	for_each_mte_vma(current, vma) {
 		struct elf_phdr phdr;
 
 		phdr.p_type = PT_ARM_MEMTAG_MTE;
@@ -109,9 +116,8 @@ size_t elf_core_extra_data_size(void)
 {
 	struct vm_area_struct *vma;
 	size_t data_size = 0;
-	VMA_ITERATOR(vmi, current->mm, 0);
 
-	for_each_mte_vma(vmi, vma)
+	for_each_mte_vma(current, vma)
 		data_size += mte_vma_tag_dump_size(vma);
 
 	return data_size;
@@ -120,9 +126,8 @@ size_t elf_core_extra_data_size(void)
 int elf_core_write_extra_data(struct coredump_params *cprm)
 {
 	struct vm_area_struct *vma;
-	VMA_ITERATOR(vmi, current->mm, 0);
 
-	for_each_mte_vma(vmi, vma) {
+	for_each_mte_vma(current, vma) {
 		if (vma->vm_flags & VM_DONTDUMP)
 			continue;
 
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index 712e97c03e54..cd868084e724 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -701,7 +701,7 @@ NOKPROBE_SYMBOL(breakpoint_handler);
  * addresses. There is no straight-forward way, short of disassembling the
  * offending instruction, to map that address back to the watchpoint. This
  * function computes the distance of the memory access from the watchpoint as a
- * heuristic for the likelyhood that a given access triggered the watchpoint.
+ * heuristic for the likelihood that a given access triggered the watchpoint.
  *
  * See Section D2.10.5 "Determining the memory location that caused a Watchpoint
  * exception" of ARMv8 Architecture Reference Manual for details.
diff --git a/arch/arm64/kernel/module-plts.c b/arch/arm64/kernel/module-plts.c
index e53493d8b208..a3d0494f25a9 100644
--- a/arch/arm64/kernel/module-plts.c
+++ b/arch/arm64/kernel/module-plts.c
@@ -220,7 +220,7 @@ static unsigned int count_plts(Elf64_Sym *syms, Elf64_Rela *rela, int num,
 			 * increasing the section's alignment so that the
 			 * resulting address of this instruction is guaranteed
 			 * to equal the offset in that particular bit (as well
-			 * as all less signficant bits). This ensures that the
+			 * as all less significant bits). This ensures that the
 			 * address modulo 4 KB != 0xfff8 or 0xfffc (which would
 			 * have all ones in bits [11:3])
 			 */
diff --git a/arch/arm64/kernel/patching.c b/arch/arm64/kernel/patching.c
index 771f543464e0..33e0fabc0b79 100644
--- a/arch/arm64/kernel/patching.c
+++ b/arch/arm64/kernel/patching.c
@@ -117,8 +117,8 @@ static int __kprobes aarch64_insn_patch_text_cb(void *arg)
 	int i, ret = 0;
 	struct aarch64_insn_patch *pp = arg;
 
-	/* The first CPU becomes master */
-	if (atomic_inc_return(&pp->cpu_count) == 1) {
+	/* The last CPU becomes master */
+	if (atomic_inc_return(&pp->cpu_count) == num_online_cpus()) {
 		for (i = 0; ret == 0 && i < pp->insn_cnt; i++)
 			ret = aarch64_insn_patch_text_nosync(pp->text_addrs[i],
 							     pp->new_insns[i]);
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index 5777929d35bf..40be3a7c2c53 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -853,6 +853,7 @@ u8 spectre_bhb_loop_affected(int scope)
 	if (scope == SCOPE_LOCAL_CPU) {
 		static const struct midr_range spectre_bhb_k32_list[] = {
 			MIDR_ALL_VERSIONS(MIDR_CORTEX_A78),
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A78AE),
 			MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C),
 			MIDR_ALL_VERSIONS(MIDR_CORTEX_X1),
 			MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 27df5c1e6baa..3b46041f2b97 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -234,6 +234,7 @@ asmlinkage notrace void secondary_start_kernel(void)
 	 * Log the CPU info before it is marked online and might get read.
 	 */
 	cpuinfo_store_cpu();
+	store_cpu_topology(cpu);
 
 	/*
 	 * Enable GIC and timers.
@@ -242,7 +243,6 @@ asmlinkage notrace void secondary_start_kernel(void)
 
 	ipi_setup(cpu);
 
-	store_cpu_topology(cpu);
 	numa_add_cpu(cpu);
 
 	/*
diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c
index 19ee7c33769d..2b0887e58a7c 100644
--- a/arch/arm64/kernel/suspend.c
+++ b/arch/arm64/kernel/suspend.c
@@ -140,7 +140,7 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
 	/*
 	 * Restore pstate flags. OS lock and mdscr have been already
 	 * restored, so from this point onwards, debugging is fully
-	 * renabled if it was enabled when core started shutdown.
+	 * reenabled if it was enabled when core started shutdown.
 	 */
 	local_daif_restore(flags);