linux-kernel - Re: [PATCH] ubi: kill homegrown endian macros

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Message-ID: <20070517212913.GV4095@ftp.linux.org.uk>
Date:	Thu, 17 May 2007 22:29:13 +0100
From:	Al Viro <viro@....linux.org.uk>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, dedekind@...radead.org,
	linux-kernel@...r.kernel.org, Christoph Hellwig <hch@....de>
Subject: Re: [PATCH] ubi: kill homegrown endian macros

On Thu, May 17, 2007 at 05:14:26PM -0400, Dmitry Torokhov wrote:
> On 5/17/07, Al Viro <viro@....linux.org.uk> wrote:
> >
> >Ahem...  So what does
> >       x |= y;
> >turns into with that approach?
> 
> Do we want to do such kind of operations on endian-annotated data? I'd
> imagine you want to convert ot host-endianess first anyway.

Why?  When both x and y are of the same type, it's a perfectly sane and
safe operation.  And yes, sparse checks handle that.
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