Re: [NET]: Shut up warnings in net/core/flow.c

From: Arjan van de Ven
Date: Wed Nov 23 2005 - 04:11:35 EST

On Wed, 2005-11-23 at 00:55 -0800, David S. Miller wrote:
> From: Andrew Morton <akpm@xxxxxxxx>
> Date: Wed, 23 Nov 2005 00:21:34 -0800
> > Nope, this will break !CONFIG_SMP builds. Quite a few places in the
> > kernel do not implement the ipi handler if !CONFIG_SMP.
> Ho hum, nothing is ever easy eh? :-) I think your patch is fine for
> now, but in the long term the !CONFIG_SMP ifdefs for those ipi
> handlers should probably just get removed. If GCC can't optimize
> those things away, I'd be really surprised.

it can.. but only if we start using -ffunction-sections in the CFLAGS
(or make all of these functions static I suppose and reenable
-funit-at-a-time, which can be done for gcc 4.x only)

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