linux-kernel - [tip:x86/vdso] x86, vsyscall: Add missing <asm/fixmap.h> to arch/x86/mm/fault.c

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Date:	Tue, 16 Aug 2011 06:20:43 GMT
From:	"tip-bot for H. Peter Anvin" <hpa@...ux.intel.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	torvalds@...ux-foundation.org, rdunlap@...otime.net,
	tglx@...utronix.de, hpa@...ux.intel.com
Subject: [tip:x86/vdso] x86, vsyscall: Add missing <asm/fixmap.h> to arch/x86/mm/fault.c

Commit-ID:  87cae8456a55c0a6163deca66d8aa3a6aa21f764
Gitweb:     http://git.kernel.org/tip/87cae8456a55c0a6163deca66d8aa3a6aa21f764
Author:     H. Peter Anvin <hpa@...ux.intel.com>
AuthorDate: Mon, 15 Aug 2011 22:28:56 -0700
Committer:  H. Peter Anvin <hpa@...ux.intel.com>
CommitDate: Mon, 15 Aug 2011 22:28:56 -0700

x86, vsyscall: Add missing <asm/fixmap.h> to arch/x86/mm/fault.c

arch/x86/mm/fault.c now depend on having the symbol VSYSCALL_START
defined, which is best handled by including <asm/fixmap.h> (it isn't
unreasonable we may want other fixed addresses in this file in the
future, and so it is cleaner than including <asm/vsyscall.h>
directly.)

This addresses an x86-64 allnoconfig build failure.  On other
configurations it was masked by an indirect path:

<asm/smp.h> -> <asm/apic.h> -> <asm/fixmap.h> -> <asm/vsyscall.h>

... however, the first such include is conditional on CONFIG_X86_LOCAL_APIC.

Originally-by: Randy Dunlap <rdunlap@...otime.net>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Link: http://lkml.kernel.org/r/CA%2B55aFxsOMc9=p02r8-QhJ=h=Mqwckk4_Pnx9LQt5%2BfqMp_exQ@mail.gmail.com
Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com>
---
 arch/x86/mm/fault.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 247aae3..bb3f8ca 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -17,6 +17,7 @@
 #include <asm/traps.h>			/* dotraplinkage, ...		*/
 #include <asm/pgalloc.h>		/* pgd_*(), ...			*/
 #include <asm/kmemcheck.h>		/* kmemcheck_*(), ...		*/
+#include <asm/vsyscall.h>		/* VSYSCALL_START		*/
 
 /*
  * Page fault error code bits:
--
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