linux-kernel - Re: trivial patches: Should we care about control reaches end of non-void function

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Date:	Wed, 15 Oct 2008 23:26:25 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Steve Kemp <steve@...ve.org.uk>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: trivial patches: Should we care about control reaches end of
 non-void function

>   I see some functions in the kernel have added "return 0" after the
>  BUG, presumably to silence these warnings.  Would a patch to do this
>  consistently, or is that too trivial even for trivial patches?

Probably better to mark BUG() properly for the compiler.

If you can get __attribute((__noreturn__)) on the end of the BUG function
somehow say

static inline void bug_off(void) __attribute((__noreturn__)) {};

and expanded that onto the end of the macro maybe it would shut up

Alan
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