Patch "megaraid_sas: disable interrupt_mask before enabling hardware interrupts" has been added to the 3.19-stable tree

[<gregkh@xxxxxxxxxxxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    megaraid_sas: disable interrupt_mask before enabling hardware interrupts

to the 3.19-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:
     megaraid_sas-disable-interrupt_mask-before-enabling-hardware-interrupts.patch
and it can be found in the queue-3.19 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From c2ced1719a1b903350955a511e1666e6d05a7f5b Mon Sep 17 00:00:00 2001
From: "Sumit.Saxena@xxxxxxxxxxxxx" <Sumit.Saxena@xxxxxxxxxxxxx>
Date: Mon, 5 Jan 2015 20:06:13 +0530
Subject: megaraid_sas: disable interrupt_mask before enabling hardware interrupts

From: "Sumit.Saxena@xxxxxxxxxxxxx" <Sumit.Saxena@xxxxxxxxxxxxx>

commit c2ced1719a1b903350955a511e1666e6d05a7f5b upstream.

Update driver "mask_interrupts" before enable/disable hardware interrupt
in order to avoid missing interrupts because of "mask_interrupts" still
set to 1 and hardware interrupts are enabled.

Signed-off-by: Sumit Saxena <sumit.saxena@xxxxxxxxxxxxx>
Signed-off-by: Chaitra Basappa <chaitra.basappa@xxxxxxxxxxxxx>
Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/scsi/megaraid/megaraid_sas_fusion.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -103,6 +103,8 @@ megasas_enable_intr_fusion(struct megasa
 {
 	struct megasas_register_set __iomem *regs;
 	regs = instance->reg_set;
+
+	instance->mask_interrupts = 0;
 	/* For Thunderbolt/Invader also clear intr on enable */
 	writel(~0, &regs->outbound_intr_status);
 	readl(&regs->outbound_intr_status);
@@ -111,7 +113,6 @@ megasas_enable_intr_fusion(struct megasa
 
 	/* Dummy readl to force pci flush */
 	readl(&regs->outbound_intr_mask);
-	instance->mask_interrupts = 0;
 }
 
 /**


Patches currently in stable-queue which might be from Sumit.Saxena@xxxxxxxxxxxxx are

queue-3.19/megaraid_sas-endianness-related-bug-fixes-and-code-optimization.patch
queue-3.19/megaraid_sas-complete-outstanding-ioctls-before-killing-adapter.patch
queue-3.19/megaraid_sas-disable-interrupt_mask-before-enabling-hardware-interrupts.patch
queue-3.19/megaraid_sas-fix-the-problem-of-non-existing-vd-exposed-to-host.patch
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