linux-kernel - Re: [PATCH] mm: make read-only accessors take const parameters

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] [day] [month] [year] [list]

Message-ID: <1303299919.2700.26.camel@localhost>
Date:	Wed, 20 Apr 2011 14:45:19 +0300
From:	Artem Bityutskiy <dedekind1@...il.com>
To:	Phil Carmody <ext-phil.2.carmody@...ia.com>
Cc:	ext Christoph Lameter <cl@...ux.com>, akpm@...ux-foundation.org,
	aarcange@...hat.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm: make read-only accessors take const parameters

On Fri, 2011-04-15 at 19:07 +0300, Phil Carmody wrote:
> Not in C, alas. As it returns what it's given I wouldn't want it to
> lie
> about the type of what it returns, and some of its clients want it to
> return something writeable. 

I think this little lie is prettier than _ro variants of functions. I do
not think you'll go far with your 'const' quest if you start adding _ro
variants for different core functions, but if you just cast the return
pointer to non-const you might be more successful.

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)

--
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/