x86: pass argument to putuser_64 functions in ax register.
This is consistent with i386 usage.
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>
diff --git a/arch/x86/lib/putuser_64.S b/arch/x86/lib/putuser_64.S
index 0702885..ce5fcd5 100644
--- a/arch/x86/lib/putuser_64.S
+++ b/arch/x86/lib/putuser_64.S
@@ -37,7 +37,7 @@
GET_THREAD_INFO(%rbx)
cmpq TI_addr_limit(%rbx),%rcx
jae bad_put_user
-1: movb %dl,(%rcx)
+1: movb %al,(%rcx)
xorl %eax,%eax
ret
CFI_ENDPROC
@@ -51,7 +51,7 @@
cmpq TI_addr_limit(%rbx),%rcx
jae 20f
decq %rcx
-2: movw %dx,(%rcx)
+2: movw %ax,(%rcx)
xorl %eax,%eax
ret
20: decq %rcx
@@ -67,7 +67,7 @@
cmpq TI_addr_limit(%rbx),%rcx
jae 30f
subq $3,%rcx
-3: movl %edx,(%rcx)
+3: movl %eax,(%rcx)
xorl %eax,%eax
ret
30: subq $3,%rcx
@@ -83,7 +83,7 @@
cmpq TI_addr_limit(%rbx),%rcx
jae 40f
subq $7,%rcx
-4: movq %rdx,(%rcx)
+4: movq %rax,(%rcx)
xorl %eax,%eax
ret
40: subq $7,%rcx
diff --git a/include/asm-x86/uaccess_64.h b/include/asm-x86/uaccess_64.h
index 21fda9e..f822a36 100644
--- a/include/asm-x86/uaccess_64.h
+++ b/include/asm-x86/uaccess_64.h
@@ -130,7 +130,7 @@
#define __put_user_x(size, ret, x, ptr) \
asm volatile("call __put_user_" #size \
:"=a" (ret) \
- :"c" (ptr),"d" (x) \
+ :"c" (ptr),"a" (x) \
:"ebx")
#define put_user(x, ptr) \