x86: uaccess: return value of __{get|put}_user() can be int
PATCH 1/1 x86: uaccess: return value of __{get|put}_user() can be int
From: Hiroshi Shimamoto <[email protected]>
Impact: cleanup
The type of return value of __{get|put}_user() can be int. There is no user to refer the return value of __{get|put}_user() as long. This reduces code size a bit on 64-bit.
$ size vmlinux.* text data bss dec hex filename 4509265 479988 673588 5662841 566879 vmlinux.new 4511462 479988 673588 5665038 56710e vmlinux.old
Signed-off-by Hiroshi Shimamoto <[email protected]>
--- arch/x86/include/asm/uaccess.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
arch/x86/include/asm/uaccess.h +2 -2
@@ -352,14 +352,14 @@ do { \#define __put_user_nocheck (x, ptr, size) \ ({ \ - long __pu_err; \ + int __pu_err; \ __put_user_size((x), (ptr), (size), __pu_err, -EFAULT); \ __pu_err; \ })#define __get_user_nocheck (x, ptr, size) \ ({ \ - long __gu_err; \ + int __gu_err; \ unsigned long __gu_val; \ __get_user_size(__gu_val, (ptr), (size), __gu_err, -EFAULT); \ (x) = (__force __typeof__(*(ptr)))__gu_val; \
Signature · 1 line
1.6.0.4
Ingo Molnar
AppliedQuoted 13 lines · Hiroshi Shimamoto
From: Hiroshi Shimamoto <[email protected]>
Impact: cleanup
The type of return value of __{get|put}_user() can be int. There is no user to refer the return value of __{get|put}_user() as long. This reduces code size a bit on 64-bit.
$ size vmlinux.* text data bss dec hex filename 4509265 479988 673588 5662841 566879 vmlinux.new 4511462 479988 673588 5665038 56710e vmlinux.old
Quoted 4 lines
Signed-off-by Hiroshi Shimamoto <[email protected]>--- arch/x86/include/asm/uaccess.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
applied to tip/x86/mm, thanks!
Ingo