From: tip-bot for Denys Vlasenko <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: ast@plumgrid.com, wad@chromium.org, rostedt@goodmis.org,
fweisbec@gmail.com, hpa@zytor.com, mingo@kernel.org,
brgerst@gmail.com, oleg@redhat.com,
torvalds@linux-foundation.org, dvlasenk@redhat.com,
linux-kernel@vger.kernel.org, bp@alien8.de, luto@amacapital.net,
keescook@chromium.org, tglx@linutronix.de
Subject: [tip:x86/asm] x86/asm/entry/64: Remove a redundant jump
Date: Thu, 9 Apr 2015 02:03:10 -0700 [thread overview]
Message-ID: <tip-a30b0085f54efae11f6256df4e4a16af7eefc1c4@git.kernel.org> (raw)
In-Reply-To: <1428439424-7258-5-git-send-email-dvlasenk@redhat.com>
Commit-ID: a30b0085f54efae11f6256df4e4a16af7eefc1c4
Gitweb: http://git.kernel.org/tip/a30b0085f54efae11f6256df4e4a16af7eefc1c4
Author: Denys Vlasenko <dvlasenk@redhat.com>
AuthorDate: Tue, 7 Apr 2015 22:43:41 +0200
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Thu, 9 Apr 2015 10:31:25 +0200
x86/asm/entry/64: Remove a redundant jump
Jumping to the very next instruction is not very useful:
jmp label
label:
Removing the jump.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
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: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1428439424-7258-5-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
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 ce85256..e8ddd51 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -1448,7 +1448,6 @@ 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
next prev parent reply other threads:[~2015-04-09 9:03 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-07 20:43 [PATCH 1/8] x86/asm/entry/64: Use common code for rt_sigreturn epilogue Denys Vlasenko
2015-04-07 20:43 ` [PATCH 2/8] x86/asm/entry/64: Move stub_x32_execve[at] closer to stub_execveat Denys Vlasenko
2015-04-09 9:02 ` [tip:x86/asm] x86/asm/entry/64: Move stub_x32_execvecloser() to stub_execveat() tip-bot for Denys Vlasenko
2015-04-07 20:43 ` [PATCH 3/8] x86/asm/entry: Zero EXTRA_REGS for stub32_execve[at] too Denys Vlasenko
2015-04-08 2:39 ` Brian Gerst
2015-04-09 9:02 ` [tip:x86/asm] x86/asm/entry: Zero EXTRA_REGS for stub32_execve() too tip-bot for Denys Vlasenko
2015-04-07 20:43 ` [PATCH 4/8] x86/asm/entry/64: optimize [v]fork/clone stubs Denys Vlasenko
2015-04-09 9:02 ` [tip:x86/asm] x86/asm/entry/64: Optimize " tip-bot for Denys Vlasenko
2015-04-07 20:43 ` [PATCH 5/8] x86/asm/entry/64: remove a redundant jump Denys Vlasenko
2015-04-09 9:03 ` tip-bot for Denys Vlasenko [this message]
2015-04-07 20:43 ` [PATCH 6/8] x86/asm/entry/64: simplify jumps in ret_from_fork Denys Vlasenko
2015-04-09 9:03 ` [tip:x86/asm] x86/asm/entry/64: Simplify " tip-bot for Denys Vlasenko
2015-04-07 20:43 ` [PATCH 7/8] x86/asm/entry/64: Remove GET_THREAD_INFO " Denys Vlasenko
2015-04-09 9:03 ` [tip:x86/asm] x86/asm/entry/64: Remove GET_THREAD_INFO() " tip-bot for Denys Vlasenko
2015-04-07 20:43 ` [PATCH 8/8] x86/asm/entry/64: Reduce padding in execve stubs Denys Vlasenko
2015-04-09 9:04 ` [tip:x86/asm] " tip-bot for Denys Vlasenko
2015-04-09 9:01 ` [tip:x86/asm] x86/asm/entry/64: Use common code for rt_sigreturn( ) epilogue tip-bot for Denys Vlasenko
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