linux-kernel - Re: [PATCH] ALSA: have snd_BUG_ON() always refer to arguments

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]

Message-ID: <8bd0f97a0811062309m4029f612k4d3fe380e6d124df@mail.gmail.com>
Date:	Fri, 7 Nov 2008 02:09:04 -0500
From:	"Mike Frysinger" <vapier.adi@...il.com>
To:	"Takashi Iwai" <tiwai@...e.de>
Cc:	"Mike Frysinger" <vapier@...too.org>, alsa-devel@...a-project.org,
	"Jaroslav Kysela" <perex@...ex.cz>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ALSA: have snd_BUG_ON() always refer to arguments

On Fri, Nov 7, 2008 at 01:22, Takashi Iwai wrote:
> At Thu,  6 Nov 2008 21:05:21 -0500,
> Mike Frysinger wrote:
>> The snd_BUG_ON() macro should always expand its argument even if we're
>> forcing it to false.  This kills off unused warnings that did not exist
>> before the snd_assert() -> snd_BUG_ON() conversion.
>
> Andrew already change this differently.  Check with the latest version.

what are you defining as "latest version" ?  i'm looking in torvalds
linux-2.6.git.

> And which warning did you get actually?

a few codecs define local vars which only get used in snd_BUG_ON() ...
so if snd_BUG_ON() doesnt utilize cond, gcc whines that the var is
unused.
-mike
--
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/