From: Vineet Gupta <vgu...@kernel.org>
Signed-off-by: Vineet Gupta <vgu...@kernel.org>
---
arch/arc/include/asm/uaccess.h | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/arch/arc/include/asm/uaccess.h b/arch/arc/include/asm/uaccess.h
index 783bfdb3bfa3..d78aae76831f 100644
--- a/arch/arc/include/asm/uaccess.h
+++ b/arch/arc/include/asm/uaccess.h
@@ -175,8 +175,9 @@ raw_copy_from_user(void *to, const void __user *from,
unsigned long n)
if (n == 0)
return 0;
- /* unaligned */
- if (((unsigned long)to & 0x3) || ((unsigned long)from & 0x3)) {
+ /* fallback for unaligned access when hardware doesn't support */
+ if (!IS_ENABLED(CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS) &&
+ (((unsigned long)to & 0x3) || ((unsigned long)from & 0x3))) {
unsigned char tmp;
@@ -402,8 +403,9 @@ raw_copy_to_user(void __user *to, const void *from,
unsigned long n)
if (n == 0)
return 0;
- /* unaligned */
- if (((unsigned long)to & 0x3) || ((unsigned long)from & 0x3)) {
+ /* fallback for unaligned access when hardware doesn't support */
+ if (!IS_ENABLED(CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS) &&
+ (((unsigned long)to & 0x3) || ((unsigned long)from & 0x3))) {
unsigned char tmp;
--
2.25.1
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