linux-kernel - Re: [PATCH] ftrace: enable format arguments checking

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Date:	Wed, 24 Dec 2008 11:24:38 +0800
From:	Lai Jiangshan <laijs@...fujitsu.com>
To:	Steven Rostedt <rostedt@...dmis.org>, Ingo Molnar <mingo@...e.hu>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ftrace: enable format arguments checking

Lai Jiangshan wrote:
> format arguments checking for ftrace_printk() is __printf(1, 2),
> not __printf(1, 0).
> 
> Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
> ---
> diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
> index 9c5bc6b..0c71788 100644
> --- a/include/linux/ftrace.h
> +++ b/include/linux/ftrace.h
> @@ -210,7 +210,7 @@ extern void ftrace_dump(void);
>  static inline void
>  ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { }
>  static inline int
> -ftrace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 0)));

Hi, Steven Rostedt
	Did you notice this patch?
	This patch changed a char in a line: s/0/2/. It enables the format checking.

	Lai.

> +ftrace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
>  
>  static inline int
>  ftrace_printk(const char *fmt, ...)
> 
> 
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