scsi: storvsc: Fix a bug in the handling of SRB status flags
SRB status can have additional information. Mask these out before processing
SRB status.
This patch was sent as part of a collection of patches more than a year ago.
While the rest of the patches in the set were comitted, this patch was not.
I woulod like to thank Olaf for noticing that this patch was not committed
upstream.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index f56b89a..3fba42a 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -349,11 +349,14 @@
*/
#define SRB_STATUS_AUTOSENSE_VALID 0x80
+#define SRB_STATUS_QUEUE_FROZEN 0x40
#define SRB_STATUS_INVALID_LUN 0x20
#define SRB_STATUS_SUCCESS 0x01
#define SRB_STATUS_ABORTED 0x02
#define SRB_STATUS_ERROR 0x04
+#define SRB_STATUS(status) \
+ (status & ~(SRB_STATUS_AUTOSENSE_VALID | SRB_STATUS_QUEUE_FROZEN))
/*
* This is the end of Protocol specific defines.
*/
@@ -858,7 +861,7 @@
void (*process_err_fn)(struct work_struct *work);
bool do_work = false;
- switch (vm_srb->srb_status) {
+ switch (SRB_STATUS(vm_srb->srb_status)) {
case SRB_STATUS_ERROR:
/*
* If there is an error; offline the device since all