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x86: don't use word-size specifiers on getuser_64.

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The instructions access registers, so the size is unambiguous.

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 2008-06-24 11:21:53 -03:00 committed by Ingo Molnar
parent 26ccb8a718
commit ef8c1a2d0e
1 changed files with 14 additions and 14 deletions
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28
arch/x86/lib/getuser_64.S
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@ -37,57 +37,57 @@
ENTRY(__get_user_1)
CFI_STARTPROC
GET_THREAD_INFO(%rdx)
cmpq TI_addr_limit(%rdx),%rax
cmp TI_addr_limit(%rdx),%rax
jae bad_get_user
1: movzb (%rax),%edx
xorl %eax,%eax
xor %eax,%eax
ret
CFI_ENDPROC
ENDPROC(__get_user_1)
ENTRY(__get_user_2)
CFI_STARTPROC
addq $1,%rax
add $1,%rax
jc bad_get_user
GET_THREAD_INFO(%rdx)
cmpq TI_addr_limit(%rdx),%rax
cmp TI_addr_limit(%rdx),%rax
jae bad_get_user
2: movzwl -1(%rax),%edx
xorl %eax,%eax
xor %eax,%eax
ret
CFI_ENDPROC
ENDPROC(__get_user_2)
ENTRY(__get_user_4)
CFI_STARTPROC
addq $3,%rax
add $3,%rax
jc bad_get_user
GET_THREAD_INFO(%rdx)
cmpq TI_addr_limit(%rdx),%rax
cmp TI_addr_limit(%rdx),%rax
jae bad_get_user
3: movl -3(%rax),%edx
xorl %eax,%eax
3: mov -3(%rax),%edx
xor %eax,%eax
ret
CFI_ENDPROC
ENDPROC(__get_user_4)
ENTRY(__get_user_8)
CFI_STARTPROC
addq $7,%rax
add $7,%rax
jc bad_get_user
GET_THREAD_INFO(%rdx)
cmpq TI_addr_limit(%rdx),%rax
cmp TI_addr_limit(%rdx),%rax
jae bad_get_user
4: movq -7(%rax),%rdx
xorl %eax,%eax
xor %eax,%eax
ret
CFI_ENDPROC
ENDPROC(__get_user_8)
bad_get_user:
CFI_STARTPROC
xorl %edx,%edx
movq $(-EFAULT),%rax
xor %edx,%edx
mov $(-EFAULT),%rax
ret
CFI_ENDPROC
END(bad_get_user)