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x86/asm/entry/64: Fix incorrect symbolic constant usage: R11->ARGOFFSET

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Since the last fix of this nature, a few more instances have crept
in. Fix them up. No object code changes (constants have the same
value).

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1423778052-21038-1-git-send-email-dvlasenk@redhat.com
Link: http://lkml.kernel.org/r/f5e1c4084319a42e5f14d41e2d638949ce66bc08.1424989793.git.luto@amacapital.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Denys Vlasenko 2015-02-26 14:40:26 -08:00 committed by Ingo Molnar
parent 49db46a67b
commit 6e1327bd2b
1 changed files with 3 additions and 3 deletions
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6
arch/x86/kernel/entry_64.S
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@ -757,8 +757,8 @@ retint_swapgs: /* return to user-space */
* Try to use SYSRET instead of IRET if we're returning to
* a completely clean 64-bit userspace context.
*/
movq (RCX-R11)(%rsp), %rcx
cmpq %rcx,(RIP-R11)(%rsp) /* RCX == RIP */
movq (RCX-ARGOFFSET)(%rsp), %rcx
cmpq %rcx,(RIP-ARGOFFSET)(%rsp) /* RCX == RIP */
jne opportunistic_sysret_failed
/*
@ -779,7 +779,7 @@ retint_swapgs: /* return to user-space */
shr $__VIRTUAL_MASK_SHIFT, %rcx
jnz opportunistic_sysret_failed
cmpq $__USER_CS,(CS-R11)(%rsp) /* CS must match SYSRET */
cmpq $__USER_CS,(CS-ARGOFFSET)(%rsp) /* CS must match SYSRET */
jne opportunistic_sysret_failed
movq (R11-ARGOFFSET)(%rsp), %r11