linux-kernel - Re: Why is the kfree() argument const?

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: <Pine.LNX.4.64.0801161419290.11922@schroedinger.engr.sgi.com>
Date:	Wed, 16 Jan 2008 14:20:50 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Johannes Weiner <hannes@...urebad.de>
cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	penberg@...helsinki.fi
Subject: Re: Why is the kfree() argument const?

On Wed, 16 Jan 2008, Johannes Weiner wrote:

> So if I got it right and you actually modify the memory you only got a
> const pointer to, you reach a level where you _have to_ break this
> policy and cast to a non-const pointer, as it is currently done in
> kfree().  No?

Correct and we have gcc 4.2 currently spitting out warnings because of 
casting to non const. Any idea how to convince gcc that this is okay?
 
--
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/