linux-kernel - Re: [PATCH] make sparse happy with gfp.h

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 15 Apr 2011 12:14:29 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Dave Hansen <dave@...ux.vnet.ibm.com>
Cc:	kosaki.motohiro@...fujitsu.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] make sparse happy with gfp.h

Hello,

> diff -puN include/linux/gfp.h~make-sparse-happy-with-gfp_h include/linux/gfp.h
> --- linux-2.6.git/include/linux/gfp.h~make-sparse-happy-with-gfp_h	2011-04-14 14:47:02.629275904 -0700
> +++ linux-2.6.git-dave/include/linux/gfp.h	2011-04-14 14:47:38.813272674 -0700
> @@ -249,14 +249,9 @@ static inline enum zone_type gfp_zone(gf
>  
>  	z = (GFP_ZONE_TABLE >> (bit * ZONES_SHIFT)) &
>  					 ((1 << ZONES_SHIFT) - 1);
> -
> -	if (__builtin_constant_p(bit))
> -		BUILD_BUG_ON((GFP_ZONE_BAD >> bit) & 1);
> -	else {
>  #ifdef CONFIG_DEBUG_VM
> -		BUG_ON((GFP_ZONE_BAD >> bit) & 1);
> +	BUG_ON((GFP_ZONE_BAD >> bit) & 1);
>  #endif
> -	}
>  	return z;

Why don't you use VM_BUG_ON?


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/