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x86/asm/entry/64: Remove pointless jump to irq_return

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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>
This commit is contained in:
Andy Lutomirski 2015-06-04 13:24:29 -07:00 committed by Ingo Molnar
parent cf991de2f6
commit 5ca6f70f38
1 changed files with 1 additions and 3 deletions

4
arch/x86/entry/entry_64.S
View File

@ -663,8 +663,6 @@ retint_kernel:
restore_c_regs_and_iret: restore_c_regs_and_iret:
RESTORE_C_REGS RESTORE_C_REGS
REMOVE_PT_GPREGS_FROM_STACK 8 REMOVE_PT_GPREGS_FROM_STACK 8
irq_return:
INTERRUPT_RETURN INTERRUPT_RETURN
ENTRY(native_iret) ENTRY(native_iret)
@ -1432,7 +1430,7 @@ nmi_restore:
/* Clear the NMI executing stack variable */ /* Clear the NMI executing stack variable */
movq $0, 5*8(%rsp) movq $0, 5*8(%rsp)
jmp irq_return INTERRUPT_RETURN
END(nmi) END(nmi)
ENTRY(ignore_sysret) ENTRY(ignore_sysret)