linux-kernel - [PATCH 01/17] x86: MCE: Initial steps to make 64bit mce code 32bit clean

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Message-Id: <bce28247059ad80b138de8ae9f22f9d13c856589.1243377662.git.ak@linux.intel.com>
Date:	Wed, 27 May 2009 01:18:00 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	linux-kernel@...r.kernel.org, x86@...nel.org, hpa@...or.com
Cc:	Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH 01/17] x86: MCE: Initial steps to make 64bit mce code 32bit clean

From: Andi Kleen <ak@...ux.intel.com>

Replace unsigned long with u64s if they need to contain 64bit values.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
 arch/x86/kernel/cpu/mcheck/mce.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 868c6a2..08ffe55 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -156,15 +156,15 @@ static void print_mce(struct mce *m)
 	       "and contact your hardware vendor\n");
 }
 
-static void mce_panic(char *msg, struct mce *backup, unsigned long start)
+static void mce_panic(char *msg, struct mce *backup, u64 start)
 {
 	int i;
 
 	oops_begin();
 	for (i = 0; i < MCE_LOG_LEN; i++) {
-		unsigned long tsc = mcelog.entry[i].tsc;
+		u64 tsc = mcelog.entry[i].tsc;
 
-		if (time_before(tsc, start))
+		if ((s64)(tsc - start) < 0)
 			continue;
 		print_mce(&mcelog.entry[i]);
 		if (backup && mcelog.entry[i].tsc == backup->tsc)
@@ -971,13 +971,13 @@ void (*threshold_cpu_callback)(unsigned long action, unsigned int cpu);
 	static ssize_t show_ ## name(struct sys_device *s,		\
 				     struct sysdev_attribute *attr,	\
 				     char *buf) {			\
-		return sprintf(buf, "%lx\n", (unsigned long)var);	\
+		return sprintf(buf, "%Lx\n", (u64)var);			\
 	}								\
 	static ssize_t set_ ## name(struct sys_device *s,		\
 				    struct sysdev_attribute *attr,	\
 				    const char *buf, size_t siz) {	\
 		char *end;						\
-		unsigned long new = simple_strtoul(buf, &end, 0);	\
+		u64 new = simple_strtoull(buf, &end, 0);		\
 									\
 		if (end == buf)						\
 			return -EINVAL;					\
-- 
1.6.0.2

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