Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

No conflicts.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

5 files changed, 20 insertions, 4 deletions

diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 58ca4f6b25d6..89ac00084f38 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -230,6 +230,11 @@ static const struct arm64_cpu_capabilities arm64_repeat_tlbi_list[] = {
 		ERRATA_MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xe),
 	},
 #endif
+#ifdef CONFIG_ARM64_ERRATUM_2441007
+	{
+		ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A55),
+	},
+#endif
 #ifdef CONFIG_ARM64_ERRATUM_2441009
 	{
 		/* Cortex-A510 r0p0 -> r1p1. Fixed in r1p2 */
diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c
index aca88470fb69..7467217c1eaf 100644
--- a/arch/arm64/kernel/mte.c
+++ b/arch/arm64/kernel/mte.c
@@ -48,7 +48,12 @@ static void mte_sync_page_tags(struct page *page, pte_t old_pte,
 	if (!pte_is_tagged)
 		return;
 
-	mte_clear_page_tags(page_address(page));
+	/*
+	 * Test PG_mte_tagged again in case it was racing with another
+	 * set_pte_at().
+	 */
+	if (!test_and_set_bit(PG_mte_tagged, &page->flags))
+		mte_clear_page_tags(page_address(page));
 }
 
 void mte_sync_tags(pte_t old_pte, pte_t pte)
@@ -64,7 +69,7 @@ void mte_sync_tags(pte_t old_pte, pte_t pte)
 
 	/* if PG_mte_tagged is set, tags have already been initialised */
 	for (i = 0; i < nr_pages; i++, page++) {
-		if (!test_and_set_bit(PG_mte_tagged, &page->flags))
+		if (!test_bit(PG_mte_tagged, &page->flags))
 			mte_sync_page_tags(page, old_pte, check_swap,
 					   pte_is_tagged);
 	}
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 9015f49c206e..044a7d7f1f6a 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -591,7 +591,7 @@ unsigned long __get_wchan(struct task_struct *p)
 unsigned long arch_align_stack(unsigned long sp)
 {
 	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= get_random_int() & ~PAGE_MASK;
+		sp -= prandom_u32_max(PAGE_SIZE);
 	return sp & ~0xf;
 }
 
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index a8ea1637b137..bfce41c2a53b 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -868,6 +868,10 @@ u8 spectre_bhb_loop_affected(int scope)
 			MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
 			{},
 		};
+		static const struct midr_range spectre_bhb_k11_list[] = {
+			MIDR_ALL_VERSIONS(MIDR_AMPERE1),
+			{},
+		};
 		static const struct midr_range spectre_bhb_k8_list[] = {
 			MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
 			MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
@@ -878,6 +882,8 @@ u8 spectre_bhb_loop_affected(int scope)
 			k = 32;
 		else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k24_list))
 			k = 24;
+		else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k11_list))
+			k = 11;
 		else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k8_list))
 			k =  8;
 
diff --git a/arch/arm64/kernel/syscall.c b/arch/arm64/kernel/syscall.c
index 733451fe7e41..d72e8f23422d 100644
--- a/arch/arm64/kernel/syscall.c
+++ b/arch/arm64/kernel/syscall.c
@@ -67,7 +67,7 @@ static void invoke_syscall(struct pt_regs *regs, unsigned int scno,
 	 *
 	 * The resulting 5 bits of entropy is seen in SP[8:4].
 	 */
-	choose_random_kstack_offset(get_random_int() & 0x1FF);
+	choose_random_kstack_offset(get_random_u16() & 0x1FF);
 }
 
 static inline bool has_syscall_work(unsigned long flags)