[PATCH 5.10 069/161] scsi: storvsc: Process unsupported MODE_SENSE_10

Greg Kroah-Hartman
2026-02-04T14:48:07Z

From: Long Li <longli@microsoft.com>

commit 9eacec5d18f98f89be520eeeef4b377acee3e4b8 upstream.

The Hyper-V host does not support MODE_SENSE_10 and MODE_SENSE. The
driver handles MODE_SENSE as unsupported command, but not for
MODE_SENSE_10. Add MODE_SENSE_10 to the same handling logic and return
correct code to SCSI layer.

Fixes: 89ae7d709357 ("Staging: hv: storvsc: Move the storage driver out of the staging area")
Cc: stable@kernel.org
Signed-off-by: Long Li <longli@microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Link: https://patch.msgid.link/20260117010302.294068-1-longli@linux.microsoft.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/scsi/storvsc_drv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1154,7 +1154,7 @@ static void storvsc_on_io_completion(str
* The current SCSI handling on the host side does
* not correctly handle:
* INQUIRY command with page code parameter set to 0x80
- * MODE_SENSE command with cmd[2] == 0x1c
+ * MODE_SENSE and MODE_SENSE_10 command with cmd[2] == 0x1c
* MAINTENANCE_IN is not supported by HyperV FC passthrough
*
* Setup srb and scsi status so this won't be fatal.
@@ -1164,6 +1164,7 @@ static void storvsc_on_io_completion(str

if ((stor_pkt->vm_srb.cdb[0] == INQUIRY) ||
(stor_pkt->vm_srb.cdb[0] == MODE_SENSE) ||
+ (stor_pkt->vm_srb.cdb[0] == MODE_SENSE_10) ||
(stor_pkt->vm_srb.cdb[0] == MAINTENANCE_IN &&
hv_dev_is_fc(device))) {
vstor_packet->vm_srb.scsi_status = 0;