linux-kernel - [tip:x86/urgent] x86/hpet: Make boot_hpet

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Date:	Thu, 8 May 2014 03:45:46 -0700
From:	tip-bot for Feng Tang <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	torvalds@...ux-foundation.org, john.stultz@...aro.org,
	tglx@...utronix.de, feng.tang@...el.com, clemens@...isch.de
Subject: [tip:x86/urgent] x86/hpet: Make boot_hpet_disable extern

Commit-ID:  f10f383d8414bfe3357e24432ed8a26eeb58ffb8
Gitweb:     http://git.kernel.org/tip/f10f383d8414bfe3357e24432ed8a26eeb58ffb8
Author:     Feng Tang <feng.tang@...el.com>
AuthorDate: Thu, 24 Apr 2014 16:18:17 +0800
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Thu, 8 May 2014 08:15:34 +0200

x86/hpet: Make boot_hpet_disable extern

HPET on some platform has accuracy problem. Making
"boot_hpet_disable" extern so that we can runtime disable
the HPET timer by using quirk to check the platform.

Signed-off-by: Feng Tang <feng.tang@...el.com>
Cc: Clemens Ladisch <clemens@...isch.de>
Cc: John Stultz <john.stultz@...aro.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Link: http://lkml.kernel.org/r/1398327498-13163-1-git-send-email-feng.tang@intel.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/include/asm/hpet.h | 1 +
 arch/x86/kernel/hpet.c      | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/hpet.h b/arch/x86/include/asm/hpet.h
index b18df57..36f7125 100644
--- a/arch/x86/include/asm/hpet.h
+++ b/arch/x86/include/asm/hpet.h
@@ -63,6 +63,7 @@
 /* hpet memory map physical address */
 extern unsigned long hpet_address;
 extern unsigned long force_hpet_address;
+extern int boot_hpet_disable;
 extern u8 hpet_blockid;
 extern int hpet_force_user;
 extern u8 hpet_msi_disable;
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 8d80ae0..4177bfb 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -88,7 +88,7 @@ static inline void hpet_clear_mapping(void)
 /*
  * HPET command line enable / disable
  */
-static int boot_hpet_disable;
+int boot_hpet_disable;
 int hpet_force_user;
 static int hpet_verbose;
 
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