This is a note to let you know that I've just added the patch titled
MIPS: Loongson-3: Add IRQF_NO_SUSPEND to Cascade irqaction
to the 4.0-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:
mips-loongson-3-add-irqf_no_suspend-to-cascade-irqaction.patch
and it can be found in the queue-4.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0add9c2f1cff9f3f1f2eb7e9babefa872a9d14b9 Mon Sep 17 00:00:00 2001
From: Huacai Chen <chenhc@xxxxxxxxxx>
Date: Thu, 12 Mar 2015 11:51:06 +0800
Subject: MIPS: Loongson-3: Add IRQF_NO_SUSPEND to Cascade irqaction
From: Huacai Chen <chenhc@xxxxxxxxxx>
commit 0add9c2f1cff9f3f1f2eb7e9babefa872a9d14b9 upstream.
HPET irq is routed to i8259 and then to MIPS CPU irq (cascade). After
commit a3e6c1eff5 (MIPS: IRQ: Fix disable_irq on CPU IRQs), if without
IRQF_NO_SUSPEND in cascade_irqaction, HPET interrupts will lost during
suspend. The result is machine cannot be waken up.
Signed-off-by: Huacai Chen <chenhc@xxxxxxxxxx>
Cc: Steven J. Hill <Steven.Hill@xxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: Fuxin Zhang <zhangfx@xxxxxxxxxx>
Cc: Zhangjin Wu <wuzhangjin@xxxxxxxxx>
Patchwork: https://patchwork.linux-mips.org/patch/9528/
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/mips/loongson/loongson-3/irq.c | 1 +
1 file changed, 1 insertion(+)
--- a/arch/mips/loongson/loongson-3/irq.c
+++ b/arch/mips/loongson/loongson-3/irq.c
@@ -44,6 +44,7 @@ void mach_irq_dispatch(unsigned int pend
static struct irqaction cascade_irqaction = {
.handler = no_action,
+ .flags = IRQF_NO_SUSPEND,
.name = "cascade",
};
Patches currently in stable-queue which might be from chenhc@xxxxxxxxxx are
queue-4.0/mips-loongson-3-add-irqf_no_suspend-to-cascade-irqaction.patch
queue-4.0/mips-hibernate-flush-tlb-entries-earlier.patch
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