linux-kernel - Re: linux-next: build failure after merge of the net tree

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Date:	Mon, 14 Mar 2011 04:59:38 +0000
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: linux-next: build failure after merge of the net tree

On Mon, 2011-03-14 at 15:24 +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the net tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
> 
> kernel/irq/manage.c: In function 'irq_affinity_notify':
> kernel/irq/manage.c:182: error: 'struct irq_desc' has no member named 'affinity'
> 
> Caused by commit cd7eab44e994 ("genirq: Add IRQ affinity notifiers")
> (which is also in the tip tree).  I am guessing that there is a fix for
> this also in the tip tree ... yep commit 1fb0ef31f428 ("genirq: Fix
> affinity notifier fallout").
> 
> I tried using the net tree from next-20110311 for today but that had the
> same problem.  So I merged the above fix commit from the tip tree.
> 
> I have no idea why this has suddenly become a problem in the net tree.

Commit cd7eab44e994 ("genirq: Add IRQ affinity notifiers") was a
prerequisite for some changes in networking.  Thomas Gleixner applied it
on a branch of its own so that David Miller could pull just that commit
into net-next-2.6.  Of course, this means net-next-2.6 doesn't have the
later fix (and won't for a while).

Ben.

-- 
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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