This is a note to let you know that I've just added the patch titled
Make hard_irq_disable() actually hard-disable interrupts
to the 3.4-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:
make-hard_irq_disable-actually-hard-disable-interrupts.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From f948501b36c6b3d9352ce212a197098a7e958971 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <[email protected]>
Date: Fri, 15 Jun 2012 14:51:39 +1000
Subject: Make hard_irq_disable() actually hard-disable interrupts
From: Paul Mackerras <[email protected]>
commit f948501b36c6b3d9352ce212a197098a7e958971 upstream.
At present, hard_irq_disable() does nothing on powerpc because of
this code in include/linux/interrupt.h:
#ifndef hard_irq_disable
#define hard_irq_disable() do { } while(0)
#endif
So we need to make our hard_irq_disable be a macro. It was previously
a macro until commit 7230c56441 ("powerpc: Rework lazy-interrupt
handling") changed it to a static inline function.
Acked-by: Benjamin Herrenschmidt <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
--
arch/powerpc/include/asm/hw_irq.h | 3 +++
1 file changed, 3 insertions(+)
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -99,6 +99,9 @@ static inline void hard_irq_disable(void
get_paca()->irq_happened |= PACA_IRQ_HARD_DIS;
}
+/* include/linux/interrupt.h needs hard_irq_disable to be a macro */
+#define hard_irq_disable hard_irq_disable
+
/*
* This is called by asynchronous interrupts to conditionally
* re-enable hard interrupts when soft-disabled after having
Patches currently in stable-queue which might be from [email protected] are
queue-3.4/make-hard_irq_disable-actually-hard-disable-interrupts.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
