diff options
Diffstat (limited to 'arch/x86/lib/putuser_64.S')
| -rw-r--r-- | arch/x86/lib/putuser_64.S | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/arch/x86/lib/putuser_64.S b/arch/x86/lib/putuser_64.S index 940796fa0d9..07028851064 100644 --- a/arch/x86/lib/putuser_64.S +++ b/arch/x86/lib/putuser_64.S @@ -18,7 +18,7 @@ * * Outputs: %rax is error code (0 or -EFAULT) * - * %r8 is destroyed. + * %rbx is destroyed. * * These functions should not modify any other registers, * as they get called from within inline assembly. @@ -34,8 +34,8 @@ .text ENTRY(__put_user_1) CFI_STARTPROC - GET_THREAD_INFO(%r8) - cmpq TI_addr_limit(%r8),%rcx + GET_THREAD_INFO(%rbx) + cmpq TI_addr_limit(%rbx),%rcx jae bad_put_user 1: movb %dl,(%rcx) xorl %eax,%eax @@ -45,10 +45,10 @@ ENDPROC(__put_user_1) ENTRY(__put_user_2) CFI_STARTPROC - GET_THREAD_INFO(%r8) + GET_THREAD_INFO(%rbx) addq $1,%rcx jc 20f - cmpq TI_addr_limit(%r8),%rcx + cmpq TI_addr_limit(%rbx),%rcx jae 20f decq %rcx 2: movw %dx,(%rcx) @@ -61,10 +61,10 @@ ENDPROC(__put_user_2) ENTRY(__put_user_4) CFI_STARTPROC - GET_THREAD_INFO(%r8) + GET_THREAD_INFO(%rbx) addq $3,%rcx jc 30f - cmpq TI_addr_limit(%r8),%rcx + cmpq TI_addr_limit(%rbx),%rcx jae 30f subq $3,%rcx 3: movl %edx,(%rcx) @@ -77,10 +77,10 @@ ENDPROC(__put_user_4) ENTRY(__put_user_8) CFI_STARTPROC - GET_THREAD_INFO(%r8) + GET_THREAD_INFO(%rbx) addq $7,%rcx jc 40f - cmpq TI_addr_limit(%r8),%rcx + cmpq TI_addr_limit(%rbx),%rcx jae 40f subq $7,%rcx 4: movq %rdx,(%rcx) |