Re: [PATCH] byteorder: force in-place endian conversion to alwaysevaluate args

From: Harvey Harrison
Date: Sat Jul 26 2008 - 13:46:51 EST


On Sat, 2008-07-26 at 01:34 -0400, Christoph Hellwig wrote:
> On Fri, Jul 25, 2008 at 09:33:41AM -0700, Harvey Harrison wrote:
> > David Miller reported breakage in ide when the in-place byteorder helpers
> > were used as the macros do not always evaluate their args which led to
> > an infinite loop.
> >
> > Just make them functions to ensure they always do so.
>
> Of course the best thing would be to kill these macros entirely.
> In-place endianess conversions are bad idea.
>

It's better than seeing this:
some_u32 = cpu_to_le32(some_u32);

But agreed, the 's' versions of the byteswapping api are a pretty good
sign something could be done better.

Harvey

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