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Message-Id: <1438893498-17157-3-git-send-email-kamal@canonical.com>
Date: Thu, 6 Aug 2015 13:37:27 -0700
From: Kamal Mostafa <kamal@...onical.com>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
kernel-team@...ts.ubuntu.com
Cc: Denys Vlasenko <dvlasenk@...hat.com>,
Alexei Starovoitov <ast@...mgrid.com>,
Andy Lutomirski <luto@...capital.net>,
Borislav Petkov <bp@...en8.de>,
Brian Gerst <brgerst@...il.com>,
Frederic Weisbecker <fweisbec@...il.com>,
"H. Peter Anvin" <hpa@...or.com>,
Kees Cook <keescook@...omium.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Oleg Nesterov <oleg@...hat.com>,
Steven Rostedt <rostedt@...dmis.org>,
Thomas Gleixner <tglx@...utronix.de>,
Will Drewry <wad@...omium.org>, Ingo Molnar <mingo@...nel.org>,
Ben Hutchings <ben@...adent.org.uk>,
Luis Henriques <luis.henriques@...onical.com>,
Andy Whitcroft <apw@...onical.com>,
Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.13.y-ckt 02/53] x86/asm/entry/64: Remove a redundant jump
3.13.11-ckt25 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Denys Vlasenko <dvlasenk@...hat.com>
commit a30b0085f54efae11f6256df4e4a16af7eefc1c4 upstream.
Jumping to the very next instruction is not very useful:
jmp label
label:
Removing the jump.
Signed-off-by: Denys Vlasenko <dvlasenk@...hat.com>
Cc: Alexei Starovoitov <ast@...mgrid.com>
Cc: Andy Lutomirski <luto@...capital.net>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Brian Gerst <brgerst@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Kees Cook <keescook@...omium.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Oleg Nesterov <oleg@...hat.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Will Drewry <wad@...omium.org>
Link: http://lkml.kernel.org/r/1428439424-7258-5-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
Acked-by: John Johansen <john.johansen@...onical.com>
Acked-by: Andy Whitcroft <apw@...onical.com>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
Signed-off-by: Andy Whitcroft <apw@...onical.com>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
arch/x86/kernel/entry_64.S | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index f4c0444..ed0f923 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -1777,7 +1777,6 @@ ENTRY(nmi)
/* If it is below the NMI stack, it is a normal NMI */
jb first_nmi
/* Ah, it is within the NMI stack, treat it as nested */
- jmp nested_nmi
CFI_REMEMBER_STATE
--
1.9.1
--
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