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 3.18-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-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From c2ced1719a1b903350955a511e1666e6d05a7f5b Mon Sep 17 00:00:00 2001
From: "[email protected]" <[email protected]>
Date: Mon, 5 Jan 2015 20:06:13 +0530
Subject: megaraid_sas: disable interrupt_mask before enabling hardware
interrupts
From: "[email protected]" <[email protected]>
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 <[email protected]>
Signed-off-by: Chaitra Basappa <[email protected]>
Reviewed-by: Martin K. Petersen <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
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
@@ -101,6 +101,8 @@ 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, ®s->outbound_intr_status);
readl(®s->outbound_intr_status);
@@ -109,7 +111,6 @@ megasas_enable_intr_fusion(struct megasa
/* Dummy readl to force pci flush */
readl(®s->outbound_intr_mask);
- instance->mask_interrupts = 0;
}
/**
Patches currently in stable-queue which might be from
[email protected] are
queue-3.18/megaraid_sas-endianness-related-bug-fixes-and-code-optimization.patch
queue-3.18/megaraid_sas-disable-interrupt_mask-before-enabling-hardware-interrupts.patch
queue-3.18/megaraid_sas-fix-the-problem-of-non-existing-vd-exposed-to-host.patch
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