Patch "MIPS: Loongson-3: Add IRQF_NO_SUSPEND to Cascade irqaction" has been added to the 4.0-stable tree

Patch "MIPS: Loongson-3: Add IRQF_NO_SUSPEND to Cascade irqaction" has been added to the 4.0-stable tree

[gregkh]

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@vger.kernel.org> know about it.


>From 0add9c2f1cff9f3f1f2eb7e9babefa872a9d14b9 Mon Sep 17 00:00:00 2001
From: Huacai Chen <chenhc@lemote.com>
Date: Thu, 12 Mar 2015 11:51:06 +0800
Subject: MIPS: Loongson-3: Add IRQF_NO_SUSPEND to Cascade irqaction

From: Huacai Chen <chenhc@lemote.com>

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@lemote.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/9528/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 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@lemote.com 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