Re: [PATCH 8/10] Re: [2.6-BK-URL] NTFS: 2.1.19 sparse annotation, cleanups and a bugfix

From: viro
Date: Sat Sep 25 2004 - 02:26:39 EST


On Fri, Sep 24, 2004 at 07:46:20PM -0700, Linus Torvalds wrote:
> So I would stronly suggest (and I may make sparse warn) against using
> non-integertyped enum values with any enum that actually has any backing
> store (ie if you ever use a variable of type "enum myenum", that would
> result in a warning - you can really just use the values "one" and "two"
> directly).

Linus, backing store is irrelevant here (and BTW, variables are no better
or worse than arguments / structure fields / return values / argument of
sizeof / etc.)

a) integer type equivalent to particular enum is up to compiler; anything
that depends on it is at the very least non-portable.

b) __bitwise doesn't break anything; __le32 enum members are just as OK as
int ones.

c) its enum members where we are not doing what gcc does; enum itself is
trivial to deal with. So that's where the warnings should be.

Anyway, I'll send you sparse patches tomorrow when I rediff that stuff to
your current tree...
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