linux-kernel - Re: Print taint info in more places.

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Date:	Fri, 14 Dec 2007 09:38:44 -0600
From:	Matt Mackall <mpm@...enic.com>
To:	Dave Jones <davej@...hat.com>, Adrian Bunk <bunk@...nel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@....de>
Subject: Re: Print taint info in more places.

On Thu, Dec 13, 2007 at 08:30:41PM -0500, Dave Jones wrote:
>  #ifndef HAVE_ARCH_BUG
>  #define BUG() do { \
> -	printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
> +	printk(KERN_ERR "BUG: failure at %s:%d/%s()! (%s)\n",
> +		__FILE__, __LINE__, __FUNCTION__, print_tainted()); \
>  	panic("BUG!"); \
>  } while (0)

Might as well make this inline too, no?

>  #endif
> @@ -32,13 +37,11 @@ struct bug_entry {
>  #endif
>  
>  #ifndef HAVE_ARCH_WARN_ON
> +void out_of_line_warnon(char *file, unsigned int line, const char *func);

How about __warn_on?

> diff --git a/init/main.c b/init/main.c
> index 80b04b6..b1fad76 100644
> --- a/init/main.c
> +++ b/init/main.c
> @@ -855,3 +855,11 @@ static int __init kernel_init(void * unused)
>  	init_post();
>  	return 0;
>  }
> +
> +void out_of_line_warnon(char *file, unsigned int line, const char *func)

Might as well make *file const too.

> diff --git a/kernel/panic.c b/kernel/panic.c
> index 6f6e03e..198fc58 100644
> --- a/kernel/panic.c
> +++ b/kernel/panic.c
> @@ -173,6 +173,7 @@ const char *print_tainted(void)
>  		snprintf(buf, sizeof(buf), "Not tainted");
>  	return(buf);
>  }
> +EXPORT_SYMBOL(print_tainted);

Looks like you've got two patches here..

-- 
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