Commit 16855f87 authored Dec 08, 2008 by Hiroshi Shimamoto Committed by Ingo Molnar Dec 12, 2008

x86: uaccess: return value of __{get|put}_user() can be int



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 <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent e18d7af8

arch/x86/include/asm/uaccess.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -350,14 +350,14 @@ 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; \