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x86: turn __put_user_check directly into put_user.

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We also check user pointer in x86_64 put_user, the way i386 does.

In a separate patch for bisecting purposes.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Glauber Costa 2008-06-25 13:00:48 -03:00 committed by Ingo Molnar
parent 64a978c1e3
commit ec840956d2
1 changed files with 3 additions and 5 deletions
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8
include/asm-x86/uaccess_64.h
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@ -23,9 +23,6 @@ extern void __put_user_bad(void);
:"c" (ptr),"a" (x) \
:"ebx")
#define put_user(x, ptr) \
__put_user_check((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
#define __get_user(x, ptr) \
__get_user_nocheck((x), (ptr), sizeof(*(ptr)))
#define __put_user(x, ptr) \
@ -34,11 +31,12 @@ extern void __put_user_bad(void);
#define __get_user_unaligned __get_user
#define __put_user_unaligned __put_user
#define __put_user_check(x, ptr, size) \
#define put_user(x, ptr) \
({ \
int __pu_err; \
typeof(*(ptr)) __user *__pu_addr = (ptr); \
switch (size) { \
__chk_user_ptr(ptr); \
switch (sizeof(*(ptr))) { \
case 1: \
__put_user_x(1, __pu_err, x, __pu_addr); \
break; \