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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: keescook@chromium.org, viro@zeniv.linux.org.uk,
	linux-kernel@vger.kernel.org, joe@perches.com, linux@horizon.com,
	JBeulich@suse.com, kosaki.motohiro@gmail.com,
	akpm@linux-foundation.org
Subject: Re: [PATCH 0/2] vsprintf: ignore %n again
Date: Wed, 18 Sep 2013 17:28:37 +0300	[thread overview]
Message-ID: <20130918142837.GU19256@mwanda> (raw)
In-Reply-To: <20130918141104.GT19256@mwanda>

On Wed, Sep 18, 2013 at 05:11:04PM +0300, Dan Carpenter wrote:
>  asmlinkage __printf(1, 2) __cold
>  int printk(const char *fmt, ...);
> +#define printk(fmt, ...) do {				  \
> +	compiletime_assert(__builtin_constant_p(fmt),     \
> +			   "Non-constant format string"); \
> +	printk(fmt, ##__VA_ARGS__);			  \
> +} while (0)

Oops...  That breaks the compile for printk.c.

Also don't we want 'const char fmt[] = "foo %s";' to be a valid format
string?

regards,
dan carpenter

  reply	other threads:[~2013-09-18 14:28 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-16  7:43 [PATCH 0/2] vsprintf: ignore %n again Kees Cook
2013-09-16  7:43 ` [PATCH 1/2] remove all uses of printf's %n Kees Cook
2013-09-16  8:09   ` Geert Uytterhoeven
2013-09-16 15:00     ` Kees Cook
2013-09-17 13:06       ` Tetsuo Handa
2013-09-17 14:34         ` Kees Cook
2013-09-17 20:57           ` George Spelvin
2013-09-19  8:56             ` Tetsuo Handa
2013-09-19 14:28               ` Kees Cook
2013-09-20  4:09                 ` Tetsuo Handa
2013-09-20  4:09                   ` Tetsuo Handa
2013-09-20  4:23                   ` Joe Perches
2013-09-20  4:23                     ` Joe Perches
2013-09-20  4:53                     ` Kees Cook
2013-09-20  4:53                       ` Kees Cook
2013-09-20  8:08                   ` Jiri Slaby
2013-09-20  8:08                     ` Jiri Slaby
2013-09-20 19:24                     ` Kees Cook
2013-09-20 19:24                       ` Kees Cook
2013-09-20 19:33                       ` Joe Perches
2013-09-20 19:33                         ` Joe Perches
2013-09-21  0:28                       ` Tetsuo Handa
2013-09-21  0:28                         ` Tetsuo Handa
2013-09-22  8:16                         ` Geert Uytterhoeven
2013-09-22  8:16                           ` Geert Uytterhoeven
2013-09-22  8:09                   ` George Spelvin
2013-09-22  8:09                     ` George Spelvin
2013-09-23 21:24                   ` Kees Cook
2013-09-23 21:24                     ` Kees Cook
2013-09-30  8:16                     ` Tetsuo Handa
2013-09-30  8:16                       ` Tetsuo Handa
2013-09-16 11:41   ` Tetsuo Handa
2013-09-16 14:59     ` Kees Cook
2013-09-16 15:09       ` Joe Perches
2013-09-16 15:25         ` Kees Cook
2013-09-16 15:44           ` Joe Perches
2013-09-16 17:21         ` George Spelvin
2013-09-16 18:03           ` Joe Perches
2013-09-16 16:07   ` George Spelvin
2013-09-16 16:13     ` Joe Perches
2013-09-16 16:39       ` George Spelvin
2013-09-16 17:53         ` Joe Perches
2013-09-16 19:15           ` George Spelvin
2013-09-16 19:25             ` Joe Perches
2013-09-16  7:43 ` [PATCH 2/2] vsprintf: ignore %n again Kees Cook
2013-09-16 15:55 ` [PATCH 0/2] " Al Viro
2013-09-16 16:15   ` Lars-Peter Clausen
2013-09-16 16:30   ` George Spelvin
2013-09-16 18:20   ` Kees Cook
2013-09-18 13:14     ` Tetsuo Handa
2013-09-18 14:11       ` Dan Carpenter
2013-09-18 14:28         ` Dan Carpenter [this message]
2013-09-18 15:22         ` George Spelvin
2013-09-18 14:32       ` Kees Cook
2013-09-19  2:11         ` Tetsuo Handa
2013-09-19  7:08           ` Tetsuo Handa
2013-09-18 14:47       ` Kees Cook

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