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| author | H. Peter Anvin <hpa@zytor.com> | 2009-07-20 23:27:39 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-07-20 23:27:39 -0700 |
| commit | ebe119cd0929df4878f758ebf880cb435e4dcaaf (patch) | |
| tree | a49e9eea03a557e7d5fe910c94ecd42e9717c3b2 /arch/x86/include/asm/uaccess.h | |
| parent | 155b73529583c38f30fd394d692b15a893960782 (diff) | |
| download | lwn-ebe119cd0929df4878f758ebf880cb435e4dcaaf.tar.gz lwn-ebe119cd0929df4878f758ebf880cb435e4dcaaf.zip | |
x86: Fix movq immediate operand constraints in uaccess.h
The movq instruction, generated by __put_user_asm() when used for
64-bit data, takes a sign-extended immediate ("e") not a zero-extended
immediate ("Z").
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Uros Bizjak <ubizjak@gmail.com>
Cc: stable@kernel.org
Diffstat (limited to 'arch/x86/include/asm/uaccess.h')
| -rw-r--r-- | arch/x86/include/asm/uaccess.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index 20e6a795e160..d2c6c930b491 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -212,9 +212,9 @@ extern int __get_user_bad(void); : "A" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx") #else #define __put_user_asm_u64(x, ptr, retval, errret) \ - __put_user_asm(x, ptr, retval, "q", "", "Zr", errret) + __put_user_asm(x, ptr, retval, "q", "", "er", errret) #define __put_user_asm_ex_u64(x, addr) \ - __put_user_asm_ex(x, addr, "q", "", "Zr") + __put_user_asm_ex(x, addr, "q", "", "er") #define __put_user_x8(x, ptr, __ret_pu) __put_user_x(8, x, ptr, __ret_pu) #endif |