Re: [PATCH 6/9] drivers/net/wireless/iwlwifi/iwl-4965.c: Correctuse of ! and &

[Ingo Molnar]

* Harvey Harrison <harvey.harrison@xxxxxxxxx> wrote:

> > Al's patch is:
> > 
> > +                       if (op == '&' && expr->left->type == EXPR_PREOP &&
> > +                           expr->left->op == '!')
> > +                               warning(expr->pos, "dubious: !x & y");
> > 
> > i think there might be similar patterns: "x & !y", "!x | y", "x | !y" ?
> > 
> 
> Well, (!x & y) and (!x | y) are probably the two that might have been 
> intended otherwise.  (x & !y), (x | !y) are probably ok.

i think the proper intention in the latter cases is (x & ~y) and
(x | ~y).

My strong bet is that in 99% of the cases they are real bugs and && or 
|| was intended.

	Ingo
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