Re: [PATCH] bio: gcc warning fix.

Jesper Juhl
2006-01-06T22:52:18Z

On 1/6/06, Daniel Barkalow <barkalow@iabervon.org> wrote:
> On Fri, 6 Jan 2006, Al Viro wrote:
>
> > On Fri, Jan 06, 2006 at 01:07:29PM -0200, Luiz Fernando Capitulino wrote:
> > >
> > > Fixes the following gcc 4.0.2 warning:
> > >
> > > fs/bio.c: In function 'bio_alloc_bioset':
> > > fs/bio.c:167: warning: 'idx' may be used uninitialized in this function
> >
> > NAK. There is nothing to fix except for broken logics in gcc.
> > Please, do not obfuscate correct code just to make gcc to shut up.
> > Especially for this call of warnings; gcc4 *blows* in that area.
>
> Wouldn't it be worthwhile to add -Wno-uninitialized for gcc4, since those
> warnings mostly have to be ignored (and are therefore not useful for
> finding actual uninitialized variables) and make it harder to see other
> types of warnings which might be informative?
>
> This would also reduce the number of patches submitted for correct code,
> since people wouldn't keep having to be told to ignore those warnings.
>

Hmm, the uninitialized warnings do find real bugs now and then.
Generate some noice as well, true, but won't we rather tollerate a
little noice rather than miss bugs?

--
Jesper Juhl <jesper.juhl@gmail.com>
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