From: David S. Miller <davem@davemloft.net>
Date: Wed, 4 May 2005 05:04:36 +0000 (-0700)
Subject: [SPARC64]: Fix goal_cpu tracking in retarget_one_irq().
X-Git-Tag: v2.6.12-rc4~117^2~22
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cee2824f85414c98fff4004e335a6bc4072c8809;p=linux-2.6

[SPARC64]: Fix goal_cpu tracking in retarget_one_irq().

We would never advance the goal_cpu counter like we
should, so all IRQs would go to a single processor.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index a38cb5036d..ab2f36863f 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -1007,10 +1007,10 @@ static int retarget_one_irq(struct irqaction *p, int goal_cpu)
 	}
 	upa_writel(tid | IMAP_VALID, imap);
 
-	while (!cpu_online(goal_cpu)) {
+	do {
 		if (++goal_cpu >= NR_CPUS)
 			goal_cpu = 0;
-	}
+	} while (!cpu_online(goal_cpu));
 
 	return goal_cpu;
 }