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Date: Thu, 4 Apr 2013 09:16:45 +0900
From: Simon Horman <horms@...ge.net.au>
To: Arnd Bergmann <arnd@...db.de>
Cc: linux-kernel@...r.kernel.org,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Zhang Yanfei <zhangyanfei@...fujitsu.com>
Subject: Re: [PATCH] sysfs: fix crash_notes_size build warning
On Wed, Apr 03, 2013 at 03:18:24PM +0000, Arnd Bergmann wrote:
> 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>
Sorry for letting that slip through.
Acked-by: Simon Horman <horms@...ge.net.au>
>
> 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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