linux-kernel - [tip:x86/asm] x86/compat: Check for both 32-bit compat and x32 in get_gate

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Message-ID: <tip-c338867d0e4224771c68d0a7727289b86c23eccd@git.kernel.org>
Date:	Mon, 6 Jul 2015 08:48:21 -0700
From:	tip-bot for Brian Gerst <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	brgerst@...il.com, peterz@...radead.org, tglx@...utronix.de,
	luto@...capital.net, mingo@...nel.org, bp@...en8.de, hpa@...or.com,
	dvlasenk@...hat.com, luto@...nel.org
Subject: [tip:x86/asm] x86/compat:
  Check for both 32-bit compat and x32 in get_gate_vma()

Commit-ID:  c338867d0e4224771c68d0a7727289b86c23eccd
Gitweb:     http://git.kernel.org/tip/c338867d0e4224771c68d0a7727289b86c23eccd
Author:     Brian Gerst <brgerst@...il.com>
AuthorDate: Mon, 22 Jun 2015 07:55:16 -0400
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 6 Jul 2015 15:28:57 +0200

x86/compat: Check for both 32-bit compat and x32 in get_gate_vma()

Change this to CONFIG_COMPAT so both 32-bit compat and x32 will
do the check.

Signed-off-by: Brian Gerst <brgerst@...il.com>
Acked-by: Andy Lutomirski <luto@...nel.org>
Cc: Andy Lutomirski <luto@...capital.net>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Denys Vlasenko <dvlasenk@...hat.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Link: http://lkml.kernel.org/r/1434974121-32575-8-git-send-email-brgerst@gmail.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/entry/vsyscall/vsyscall_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
index 2dcc6ff..26a46f4 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -290,7 +290,7 @@ static struct vm_area_struct gate_vma = {
 
 struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
 {
-#ifdef CONFIG_IA32_EMULATION
+#ifdef CONFIG_COMPAT
 	if (!mm || mm->context.ia32_compat)
 		return NULL;
 #endif
--
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