Patch "x86/asm/entry/64: Remove pointless jump to irq_return" has been added to the 4.1-stable tree

This is a note to let you know that I've just added the patch titled

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

to the 4.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
x86-asm-entry-64-remove-pointless-jump-to-irq_return.patch
and it can be found in the queue-4.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Andy Lutomirski <[email protected]>
Date: Thu, 4 Jun 2015 13:24:29 -0700
Subject: x86/asm/entry/64: Remove pointless jump to irq_return

From: Andy Lutomirski <[email protected]>

commit 5ca6f70f387b4f82903037cc3c5488e2c97dcdbc upstream.

INTERRUPT_RETURN turns into a jmp instruction. There's no need for extra indirection.

---
 arch/x86/kernel/entry_64.S |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

@@ -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)
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.1/x86-nmi-enable-nested-do_nmi-handling-for-64-bit-kernels.patch queue-4.1/x86-nmi-64-switch-stacks-on-userspace-nmi-entry.patch queue-4.1/x86-nmi-64-remove-asm-code-that-saves-cr2.patch queue-4.1/x86-nmi-64-use-df-to-avoid-userspace-rsp-confusing-nested-nmi-detection.patch queue-4.1/x86-asm-entry-64-remove-pointless-jump-to-irq_return.patch queue-4.1/x86-nmi-64-reorder-nested-nmi-checks.patch queue-4.1/x86-nmi-64-improve-nested-nmi-comments.patch