linux-kernel - [PATCH] sysfs: fix crash_notes

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Message-Id: <201304031518.24455.arnd@arndb.de>
Date:	Wed, 3 Apr 2013 15:18:24 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-kernel@...r.kernel.org
Cc:	"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
	Zhang Yanfei <zhangyanfei@...fujitsu.com>,
	Simon Horman <horms@...ge.net.au>
Subject: [PATCH] sysfs: fix crash_notes_size build warning

>From b60d17603df3225d9f51c4f8168e8e00a1090911 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@...db.de>
Date: Wed, 3 Apr 2013 17:14:32 +0200
Subject: [PATCH] sysfs: fix crash_notes_size build warning

commit eca4549f57 "sysfs: Add crash_notes_size to export percpu
note size" adds a printk that outputs a size_t value as %lu
when it should be %zu, resulting in this warning.

drivers/base/cpu.c: In function 'show_crash_notes_size':
drivers/base/cpu.c:142:2: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'unsigned int' [-Wformat=]

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Cc: Zhang Yanfei <zhangyanfei@...fujitsu.com>
Cc: Simon Horman <horms@...ge.net.au>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index a55b590..d8c7f3e 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -139,7 +139,7 @@ static ssize_t show_crash_notes_size(struct device *dev,
 {
 	ssize_t rc;
 
-	rc = sprintf(buf, "%lu\n", sizeof(note_buf_t));
+	rc = sprintf(buf, "%zu\n", sizeof(note_buf_t));
 	return rc;
 }
 static DEVICE_ATTR(crash_notes_size, 0400, show_crash_notes_size, NULL);
--
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