diff options
| author | Andy Lutomirski <luto@kernel.org> | 2015-06-04 13:24:29 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-16 20:52:14 -0700 |
| commit | 4e1fb62bc119a4a130b01ff538c2b9a4c0853acc (patch) | |
| tree | b7c7cbf3fc5d36d803342c3f1d79e6b4d8bb5a6f /arch/x86 | |
| parent | b235edce5cbe4e978d44d8c57ec15afc4ba27d50 (diff) | |
x86/asm/entry/64: Remove pointless jump to irq_return
commit 5ca6f70f387b4f82903037cc3c5488e2c97dcdbc upstream.
INTERRUPT_RETURN turns into a jmp instruction. There's no need
for extra indirection.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/2f2318653dbad284a59311f13f08cea71298fd7c.1433449436.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/entry_64.S | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 02c2eff7478d..b32f3465f105 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -793,8 +793,6 @@ retint_kernel: restore_c_regs_and_iret: RESTORE_C_REGS REMOVE_PT_GPREGS_FROM_STACK 8 - -irq_return: INTERRUPT_RETURN ENTRY(native_iret) @@ -1640,7 +1638,7 @@ nmi_restore: /* Clear the NMI executing stack variable */ movq $0, 5*8(%rsp) - jmp irq_return + INTERRUPT_RETURN CFI_ENDPROC END(nmi) |