This is a note to let you know that I've just added the patch titled
x86: Readd missing irq_to_desc() in fixup_irq()
to the 2.6.37-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-readd-missing-irq_to_desc-in-fixup_irq.patch
and it can be found in the queue-2.6.37 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 5117348dea5e3ecbb785cfa1271386fb49332b41 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <[email protected]>
Date: Sat, 12 Feb 2011 11:51:03 +0100
Subject: x86: Readd missing irq_to_desc() in fixup_irq()
From: Thomas Gleixner <[email protected]>
commit 5117348dea5e3ecbb785cfa1271386fb49332b41 upstream.
commit a3c08e5d(x86: Convert irq_chip access to new functions)
accidentally zapped desc = irq_to_desc(irq); in the vector loop.
So we lock some random irq descriptor.
Add it back.
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/kernel/irq.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -357,7 +357,8 @@ void fixup_irqs(void)
if (irr & (1 << (vector % 32))) {
irq = __get_cpu_var(vector_irq)[vector];
- data = irq_get_irq_data(irq);
+ desc = irq_to_desc(irq);
+ data = &desc->irq_data;
raw_spin_lock(&desc->lock);
if (data->chip->irq_retrigger)
data->chip->irq_retrigger(data);
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.37/x86-readd-missing-irq_to_desc-in-fixup_irq.patch
queue-2.6.37/sched-fix-update_curr_rt.patch
queue-2.6.37/genirq-prevent-irq-storm-on-migration.patch
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