x86/asm/entry/32: Tidy up JNZ instructions after TESTs

After TESTs, use logically correct JNZ mnemonic instead of JNE.

This doesn't change code:

  md5:
   c3005b39a11fe582b7df7908561ad4ee  entry_32.o.before.asm
   c3005b39a11fe582b7df7908561ad4ee  entry_32.o.after.asm

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
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: Steven Rostedt <rostedt@goodmis.org>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1428689620-21881-1-git-send-email-dvlasenk@redhat.com
[ Added object file comparison. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 02bec0f1d1e19d8acf93089ee30adea9721c64c5..1c309763e32197d255b72e3f976aa948ab67f431 100644 (file)
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -435,7 +435,7 @@ sysenter_after_call:
        TRACE_IRQS_OFF
        movl TI_flags(%ebp), %ecx
        testl $_TIF_ALLWORK_MASK, %ecx
-       jne sysexit_audit
+       jnz sysexit_audit
 sysenter_exit:
 /* if something modifies registers it must also disable sysexit */
        movl PT_EIP(%esp), %edx
@@ -463,7 +463,7 @@ sysenter_audit:
 
 sysexit_audit:
        testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT), %ecx
-       jne syscall_exit_work
+       jnz syscall_exit_work
        TRACE_IRQS_ON
        ENABLE_INTERRUPTS(CLBR_ANY)
        movl %eax,%edx          /* second arg, syscall return value */
@@ -475,7 +475,7 @@ sysexit_audit:
        TRACE_IRQS_OFF
        movl TI_flags(%ebp), %ecx
        testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT), %ecx
-       jne syscall_exit_work
+       jnz syscall_exit_work
        movl PT_EAX(%esp),%eax  /* reload syscall return value */
        jmp sysenter_exit
 #endif
@@ -513,7 +513,7 @@ syscall_exit:
        TRACE_IRQS_OFF
        movl TI_flags(%ebp), %ecx
        testl $_TIF_ALLWORK_MASK, %ecx  # current->work
-       jne syscall_exit_work
+       jnz syscall_exit_work
 
 restore_all:
        TRACE_IRQS_IRET
@@ -615,7 +615,7 @@ work_notifysig:                             # deal with pending signals and
 #ifdef CONFIG_VM86
        testl $X86_EFLAGS_VM, PT_EFLAGS(%esp)
        movl %esp, %eax
-       jne work_notifysig_v86          # returning to kernel-space or
+       jnz work_notifysig_v86          # returning to kernel-space or
                                        # vm86-space
 1:
 #else