Re: [PATCH 1/4] NTFS: Fix sparse warnings that have crept in overtime.

From: Linus Torvalds
Date: Mon Sep 26 2005 - 15:43:47 EST




On Mon, 26 Sep 2005, Anton Altaparmakov wrote:
> >
> > I'm actually a bit surprised that the cast even shut sparse up. It
> > probably shouldn't have, and it should have complained about casting an
> > unknown type even _with_ your added cast (ie I think it should have cut
> > your four lines of warning down to one).
> >
> > Did it?
>
> No, the warnings completely disappeared with the cast.

Ok, it turns out that a bad enum type ends up being seen as just its
integer type, and anything that doesn't care about anything else than its
size (namely, a cast) won't even complain.

That's very arguably a bug. Oh, well. Not a big one.

Linus
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