Add hotplug support.
Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
---
drivers/scsi/sata_nv.c | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletions(-)
272a9ef56e7ac2fa38ddde41af45b59f8cfe61ff
diff --git a/drivers/scsi/sata_nv.c b/drivers/scsi/sata_nv.c
index b041c13..d88eeed 100644
--- a/drivers/scsi/sata_nv.c
+++ b/drivers/scsi/sata_nv.c
@@ -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,
@@ -293,6 +294,13 @@ static int nv_host_intr(struct ata_port
struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->active_tag);
int handled;
+ /* freeze if hotplugged */
+ if (irq_stat_valid &&
+ unlikely(irq_stat & (NV_INT_ADDED | NV_INT_REMOVED))) {
+ ata_port_freeze(ap);
+ return 1;
+ }
+
/* bail out if not our interrupt */
if (irq_stat_valid && !(irq_stat & NV_INT_DEV))
return 0;
--
1.3.2
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