Similarly to commit 5cf773fc8f37 ("powerpc/uaccess: Also perform
64 bits copies in unsafe_copy_to_user() on ppc32")
ppc32 has an efficiant 64 bits unsafe_get_user(), so also use it in
order to unroll loops more.
Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu>
---
arch/powerpc/include/asm/uaccess.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/uaccess.h
b/arch/powerpc/include/asm/uaccess.h
index 77d837b16e4d..a4e791bcd3fe 100644
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -432,9 +432,9 @@ do {
\
size_t _len = (l);
\
int _i;
\
\
- for (_i = 0; _i < (_len & ~(sizeof(long) - 1)); _i += sizeof(long))
\
- unsafe_get_user(*(long *)(_dst + _i), (long __user *)(_src +
_i), e); \
- if (IS_ENABLED(CONFIG_PPC64) && (_len & 4)) {
\
+ for (_i = 0; _i < (_len & ~(sizeof(u64) - 1)); _i += sizeof(u64))
\
+ unsafe_get_user(*(u64 *)(_dst + _i), (u64 __user *)(_src + _i),
e); \
+ if (_len & 4) {
\
unsafe_get_user(*(u32 *)(_dst + _i), (u32 __user *)(_src + _i),
e); \
_i += 4;
\
}
\
--
2.25.0
