[PATCH] ahci: remove IRQ mask clearing from init_controller()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Initial IRQ mask clearing is done by libata-core by freezing all ports
prior to requesting IRQ.  Remove redundant IRQ clearing from
init_controller().

Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>

---

 drivers/scsi/ahci.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

049892ed973dc00569e26130826fef0000fc7577
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index f5734a9..68fd766 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -662,14 +662,13 @@ #endif
 		VPRINTK("PORT_SCR_ERR 0x%x\n", tmp);
 		writel(tmp, port_mmio + PORT_SCR_ERR);
 
-		/* clear & turn off port IRQ */
+		/* clear port IRQ */
 		tmp = readl(port_mmio + PORT_IRQ_STAT);
 		VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
 		if (tmp)
 			writel(tmp, port_mmio + PORT_IRQ_STAT);
 
 		writel(1 << i, mmio + HOST_IRQ_STAT);
-		writel(0, port_mmio + PORT_IRQ_MASK);
 	}
 
 	tmp = readl(mmio + HOST_CTL);
-- 
1.3.2

-
: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Filesystems]     [Linux SCSI]     [Linux RAID]     [Git]     [Kernel Newbies]     [Linux Newbie]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Samba]     [Device Mapper]

  Powered by Linux