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| author | Sumit.Saxena@avagotech.com <Sumit.Saxena@avagotech.com> | 2015-01-05 20:06:13 +0530 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2015-01-09 15:44:35 +0100 |
| commit | c2ced1719a1b903350955a511e1666e6d05a7f5b (patch) | |
| tree | c52f515175715b6cbf9d327795da02509dc34271 /drivers | |
| parent | ab2f0608e16d64a23a2dcc8d83b966a0e0a281f3 (diff) | |
| download | linux-c2ced1719a1b903350955a511e1666e6d05a7f5b.tar.gz linux-c2ced1719a1b903350955a511e1666e6d05a7f5b.tar.bz2 linux-c2ced1719a1b903350955a511e1666e6d05a7f5b.zip | |
megaraid_sas: disable interrupt_mask before enabling hardware interrupts
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.
Cc: <stable@vger.kernel.org>
Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com>
Signed-off-by: Chaitra Basappa <chaitra.basappa@avagotech.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 7b23d347b69c..075c99e987bf 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -102,6 +102,8 @@ megasas_enable_intr_fusion(struct megasas_instance *instance) { 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); @@ -110,7 +112,6 @@ megasas_enable_intr_fusion(struct megasas_instance *instance) /* Dummy readl to force pci flush */ readl(®s->outbound_intr_mask); - instance->mask_interrupts = 0; } /** |