[PATCH 5.16 053/285] scsi: mpi3mr: Fix reporting of actual data transfer size

Greg Kroah-Hartman
2022-04-12T07:45:48Z

From: Sreekanth Reddy <sreekanth.reddy@broadcom.com>

[ Upstream commit 9992246127246a27cc7184f05cce6f62ac48f84e ]

The driver is missing to set the residual size while completing an
I/O. Ensure proper data transfer size is reported to the kernel on I/O
completion based on the transfer length reported by the firmware.

Link: https://lore.kernel.org/r/20220210095817.22828-7-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/mpi3mr/mpi3mr_os.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index fe10f257b5a4..224a4155d9b4 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -2204,6 +2204,8 @@ void mpi3mr_process_op_reply_desc(struct mpi3mr_ioc *mrioc,
scmd->result = DID_OK << 16;
goto out_success;
}
+
+ scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_count);
if (ioc_status == MPI3_IOCSTATUS_SCSI_DATA_UNDERRUN &&
xfer_count == 0 && (scsi_status == MPI3_SCSI_STATUS_BUSY ||
scsi_status == MPI3_SCSI_STATUS_RESERVATION_CONFLICT ||
--
2.35.1