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Date:	Mon, 4 Jun 2007 14:22:12 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Adrian Bunk <bunk@...sta.de>
Cc:	Martin Peschke <mp3@...ibm.com>, linux-kernel@...r.kernel.org
Subject: Re: 2.6.22-rc3-mm1: __attribute__((weak)) considered harmful

On Sat, 2 Jun 2007 19:14:25 +0200
Adrian Bunk <bunk@...sta.de> wrote:

> statistics-infrastructure-make-printk_clock-a-generic-kernel-wide-nsec-resolution.patch 
> shows why __attribute__((weak)) is harmful because you don't see if a 
> required non-weak implemtation is missing:
> 
> In this case, the weak printk_clock() was renamed to timestamp_clock(), 
> but the ARM and i386 implementations weren't renamed...
> 

printk_clock() is sched_clock() in disguise, and I'm not sure that making
sched_clock() more widely available in this fashion is something that we
want to do anyway.

Anyway, the statistics patches have just celebrated their first birthday
and I don't see that they're getting sufficient momentum or interest to
ever get into mainline so I think I'll drop them, sorry.

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