linux-kernel - Re: [GIT]: Sparc

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Message-Id: <20100126.041253.189819572.davem@davemloft.net>
Date:	Tue, 26 Jan 2010 04:12:53 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	a.beregalov@...il.com
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [GIT]: Sparc

From: Alexander Beregalov <a.beregalov@...il.com>
Date: Tue, 26 Jan 2010 12:23:06 +0300

> Hi David
> 
>> 7) IRQ ->set_affinity() using wrong cpu mask, thanks to Ben H. for
>>   noticing.
>>      sparc64: Fix IRQ ->set_affinity() methods.
> 
> This commit breaks UP build

Sorry, I'll fix this, thanks for the report.

sparc64: Fix UP build.

Can't reference irq_desc[].affinity when !SMP.

Reported-by: Alexander Beregalov <a.beregalov@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>

diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index f2179cc..e1cbdb9 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -268,10 +268,8 @@ static int irq_choose_cpu(unsigned int virt_irq, const struct cpumask *affinity)
 	return cpuid;
 }
 #else
-static int irq_choose_cpu(unsigned int virt_irq, const struct cpumask *affinity)
-{
-	return real_hard_smp_processor_id();
-}
+#define irq_choose_cpu(virt_irq, affinity)	\
+	real_hard_smp_processor_id()
 #endif
 
 static void sun4u_irq_enable(unsigned int virt_irq)
--
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