[PATCH] x86/asm/entry/64: fix wrong comment.

[PATCH] x86/asm/entry/64: fix wrong comment.

[Denys Vlasenko]

The recent old_rsp -> rsp_scratch rename also changed this comment,
but in this case "old_rsp" was not referring to PER_CPU(old_rsp).

Fixing this.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
CC: Linus Torvalds <torvalds@linux-foundation.org>
CC: Steven Rostedt <rostedt@goodmis.org>
CC: Ingo Molnar <mingo@kernel.org>
CC: Borislav Petkov <bp@alien8.de>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: Andy Lutomirski <luto@amacapital.net>
CC: Oleg Nesterov <oleg@redhat.com>
CC: Frederic Weisbecker <fweisbec@gmail.com>
CC: Alexei Starovoitov <ast@plumgrid.com>
CC: Will Drewry <wad@chromium.org>
CC: Kees Cook <keescook@chromium.org>
CC: x86@kernel.org
CC: linux-kernel@vger.kernel.org
---
 arch/x86/kernel/entry_64.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 0c91256..7bfdcb3 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -657,7 +657,7 @@ common_interrupt:
 	ASM_CLAC
 	addq $-0x80,(%rsp)		/* Adjust vector to [-256,-1] range */
 	interrupt do_IRQ
-	/* 0(%rsp): rsp_scratch */
+	/* 0(%rsp): old rsp */
 ret_from_intr:
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
-- 
1.8.1.4

[tip:x86/asm] x86/asm/entry/64: Fix incorrect comment

[tip-bot for Denys Vlasenko]

Commit-ID:  34061f134f70d33296fa56678cee122dd7010401
Gitweb:     http://git.kernel.org/tip/34061f134f70d33296fa56678cee122dd7010401
Author:     Denys Vlasenko <dvlasenk@redhat.com>
AuthorDate: Mon, 23 Mar 2015 14:03:59 +0100
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Mon, 23 Mar 2015 14:28:54 +0100

x86/asm/entry/64: Fix incorrect comment

The recent old_rsp -> rsp_scratch rename also changed this
comment, but in this case "old_rsp" was not referring to
PER_CPU(old_rsp).

Fix this.

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: 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: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1427115839-6397-1-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/entry_64.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 0c91256..9184392 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -657,7 +657,7 @@ common_interrupt:
 	ASM_CLAC
 	addq $-0x80,(%rsp)		/* Adjust vector to [-256,-1] range */
 	interrupt do_IRQ
-	/* 0(%rsp): rsp_scratch */
+	/* 0(%rsp): old RSP */
 ret_from_intr:
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF