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From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
To: Tejun Heo <tj@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	maximilian attems <max@stro.at>,
	linux-kernel@vger.kernel.org, dhowells@redhat.com
Subject: Re: >= 2.6.30 broken alpha smp build
Date: Fri, 26 Jun 2009 16:47:05 +0400	[thread overview]
Message-ID: <20090626124705.GA25147@jurassic.park.msu.ru> (raw)
In-Reply-To: <4A4419AA.2040400@kernel.org>

On Fri, Jun 26, 2009 at 09:43:22AM +0900, Tejun Heo wrote:
> The __used attribute is dropped by a patch in percpu patchset as it
> caused build warning on my test builds and wasn't even effective
> as-was (overriden by later NULL definition).  Ivan, any ideas why it's
> there?

It was intended for suppressing the compiler warnings about "unused"
static per-cpu variables, as they were only referenced inside the asm code.

Now it seems to be broken with DECLARE_PER_CPU thing, so I think your
patch that kills __used attribute should go in as a compile fix ASAP -
we can live with a few compile warnings until the rest of percpu patchset
gets merged.

Ivan.

  reply	other threads:[~2009-06-26 12:47 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-25  9:08 maximilian attems
2009-06-25 18:54 ` Andrew Morton
2009-06-26  0:43   ` Tejun Heo
2009-06-26 12:47     ` Ivan Kokshaysky [this message]
2009-06-26 18:57       ` Andrew Morton
2009-06-26 19:21         ` Andrew Morton
2009-06-28  0:49           ` [PATCH] alpha: fix percpu build breakage Tejun Heo
2009-06-28 11:39             ` Ivan Kokshaysky
2009-06-28 12:21               ` Tejun Heo
2009-06-28 15:50                 ` Ivan Kokshaysky

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