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From: Andrew Morton <akpm@linux-foundation.org>
To: Joe Perches <joe@perches.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] mm: Neaten warn_alloc_failed
Date: Thu, 25 Aug 2011 16:50:06 -0700	[thread overview]
Message-ID: <20110825165006.af771ef7.akpm@linux-foundation.org> (raw)
In-Reply-To: <5a0bef0143ed2b3176917fdc0ddd6a47f4c79391.1314303846.git.joe@perches.com>

On Thu, 25 Aug 2011 13:26:19 -0700
Joe Perches <joe@perches.com> wrote:

> Add __attribute__((format (printf...) to the function
> to validate format and arguments.  Use vsprintf extension
> %pV to avoid any possible message interleaving. Coalesce
> format string.  Convert printks/pr_warning to pr_warn.
> 
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -1334,7 +1334,8 @@ extern void si_meminfo(struct sysinfo * val);
>  extern void si_meminfo_node(struct sysinfo *val, int nid);
>  extern int after_bootmem;
>  
> -extern void warn_alloc_failed(gfp_t gfp_mask, int order, const char *fmt, ...);
> +extern __attribute__((format (printf, 3, 4)))
> +void warn_alloc_failed(gfp_t gfp_mask, int order, const char *fmt, ...);
>  
>  extern void setup_per_cpu_pageset(void);
>  
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c

looky:

--- a/include/linux/mm.h~mm-neaten-warn_alloc_failed-fix
+++ a/include/linux/mm.h
@@ -1335,7 +1335,7 @@ extern void si_meminfo(struct sysinfo * 
 extern void si_meminfo_node(struct sysinfo *val, int nid);
 extern int after_bootmem;
 
-extern __attribute__((format (printf, 3, 4)))
+extern __printf(3, 4)
 void warn_alloc_failed(gfp_t gfp_mask, int order, const char *fmt, ...);
 
 extern void setup_per_cpu_pageset(void);
_

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  reply	other threads:[~2011-08-25 23:50 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-25 20:26 Joe Perches
2011-08-25 23:50 ` Andrew Morton [this message]
2011-08-26  0:00   ` Joe Perches
2011-08-26  0:05     ` Andrew Morton
2011-08-26  0:38       ` Joe Perches
2011-08-26  1:07         ` Andrew Morton
2011-08-26  2:55           ` [PATCH] treewide: Use __printf not __attribute__((format(printf,...))) Joe Perches
2011-10-11 17:22             ` Kirill A. Shutemov
2011-10-11 17:43               ` Joe Perches

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