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authorLinus Torvalds <torvalds@linux-foundation.org>2024-08-16 17:02:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-08-16 17:02:32 -0700
commitc2cdb13a34d950e61e3b53af0c5f9eb828710beb (patch)
tree1c61b8b7b92ffcb36eb2008b22334711f0978c5f /arch
parent216595b708dac1707fc68d48042738d6d559ddd5 (diff)
parentf75c235565f90c4a17b125e47f1c68ef6b8c2bce (diff)
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas: - Fix the arm64 __get_mem_asm() to use the _ASM_EXTABLE_##type##ACCESS() macro instead of the *_ERR() one in order to avoid writing -EFAULT to the value register in case of a fault - Initialise all elements of the acpi_early_node_map[] to NUMA_NO_NODE. Prior to this fix, only the first element was initialised - Move the KASAN random tag seed initialisation after the per-CPU areas have been initialised (prng_state is __percpu) * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: Fix KASAN random tag seed initialization arm64: ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO_NODE arm64: uaccess: correct thinko in __get_mem_asm()
Diffstat (limited to 'arch')
-rw-r--r--arch/arm64/include/asm/uaccess.h2
-rw-r--r--arch/arm64/kernel/acpi_numa.c2
-rw-r--r--arch/arm64/kernel/setup.c3
-rw-r--r--arch/arm64/kernel/smp.c2
4 files changed, 4 insertions, 5 deletions
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index 28f665e0975a..1aa4ecb73429 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@@ -188,7 +188,7 @@ static inline void __user *__uaccess_mask_ptr(const void __user *ptr)
#define __get_mem_asm(load, reg, x, addr, label, type) \
asm_goto_output( \
"1: " load " " reg "0, [%1]\n" \
- _ASM_EXTABLE_##type##ACCESS_ERR(1b, %l2, %w0) \
+ _ASM_EXTABLE_##type##ACCESS(1b, %l2) \
: "=r" (x) \
: "r" (addr) : : label)
#else
diff --git a/arch/arm64/kernel/acpi_numa.c b/arch/arm64/kernel/acpi_numa.c
index 0c036a9a3c33..2465f291c7e1 100644
--- a/arch/arm64/kernel/acpi_numa.c
+++ b/arch/arm64/kernel/acpi_numa.c
@@ -27,7 +27,7 @@
#include <asm/numa.h>
-static int acpi_early_node_map[NR_CPUS] __initdata = { NUMA_NO_NODE };
+static int acpi_early_node_map[NR_CPUS] __initdata = { [0 ... NR_CPUS - 1] = NUMA_NO_NODE };
int __init acpi_numa_get_nid(unsigned int cpu)
{
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index a096e2451044..b22d28ec8028 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -355,9 +355,6 @@ void __init __no_sanitize_address setup_arch(char **cmdline_p)
smp_init_cpus();
smp_build_mpidr_hash();
- /* Init percpu seeds for random tags after cpus are set up. */
- kasan_init_sw_tags();
-
#ifdef CONFIG_ARM64_SW_TTBR0_PAN
/*
* Make sure init_thread_info.ttbr0 always generates translation
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 5e18fbcee9a2..f01f0fd7b7fe 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -467,6 +467,8 @@ void __init smp_prepare_boot_cpu(void)
init_gic_priority_masking();
kasan_init_hw_tags();
+ /* Init percpu seeds for random tags after cpus are set up. */
+ kasan_init_sw_tags();
}
/*