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Commit 5a44efff authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
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[PATCH] sata_nv: add hotplug support 



Add hotplug support.

Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 39f87582

drivers/scsi/sata_nv.c

+8 −1
Original line number Diff line number Diff line
@@ -69,7 +69,8 @@ enum { 
	NV_INT_PORT_SHIFT		= 4,	/* each port occupies 4 bits */



	NV_INT_ALL			= 0x0f,

	NV_INT_MASK			= NV_INT_DEV,

	NV_INT_MASK			= NV_INT_DEV |

					  NV_INT_ADDED | NV_INT_REMOVED,



	/* INT_CONFIG */

	NV_INT_CONFIG			= 0x12,
@@ -324,6 +325,12 @@ static int nv_host_intr(struct ata_port *ap, u8 irq_stat) 
	struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->active_tag);

	int handled;



	/* freeze if hotplugged */

	if (unlikely(irq_stat & (NV_INT_ADDED | NV_INT_REMOVED))) {

		ata_port_freeze(ap);

		return 1;

	}



	/* bail out if not our interrupt */

	if (!(irq_stat & NV_INT_DEV))

		return 0;