diff options
| author | Thomas Weissschuh <thomas.weissschuh@linutronix.de> | 2026-01-07 11:01:49 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2026-01-31 12:58:27 +0000 |
| commit | 23ea2a4c72323feb6e3e025e8a6f18336513d5ad (patch) | |
| tree | 32771e136611009e3d539fbe129be6c860edae04 | |
| parent | 8f0b4cce4481fb22653697cced8d0d04027cb1e8 (diff) | |
ARM: 9468/1: fix memset64() on big-endian
On big-endian systems the 32-bit low and high halves need to be swapped
for the underlying assembly implementation to work correctly.
Fixes: fd1d362600e2 ("ARM: implement memset32 & memset64")
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
| -rw-r--r-- | arch/arm/include/asm/string.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm/include/asm/string.h b/arch/arm/include/asm/string.h index 6c607c68f3ad..c35250c4991b 100644 --- a/arch/arm/include/asm/string.h +++ b/arch/arm/include/asm/string.h @@ -42,7 +42,10 @@ static inline void *memset32(uint32_t *p, uint32_t v, __kernel_size_t n) extern void *__memset64(uint64_t *, uint32_t low, __kernel_size_t, uint32_t hi); static inline void *memset64(uint64_t *p, uint64_t v, __kernel_size_t n) { - return __memset64(p, v, n * 8, v >> 32); + if (IS_ENABLED(CONFIG_CPU_LITTLE_ENDIAN)) + return __memset64(p, v, n * 8, v >> 32); + else + return __memset64(p, v >> 32, n * 8, v); } /* |