[PATCH v2 2/2] scsi: mpt3sas: Disable MPI2_FUNCTION_FW_DOWNLOAD for ATTO devices

[Bradley Grove <bradley.grove@gmail.com>]

Disable firmware download for ATTO devices where it is not supported.

Co-developed-by: Rob Crispo <rcrispo@attotech.com>
Signed-off-by: Rob Crispo <rcrispo@attotech.com>
Signed-off-by: Bradley Grove <bgrove@attotech.com>
---
 drivers/scsi/mpt3sas/mpt3sas_ctl.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
index 84c87c2c3e7e..1c99338a71a4 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -948,6 +948,14 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
 		break;
 	}
 	case MPI2_FUNCTION_FW_DOWNLOAD:
+	{
+		if (ioc->pdev->vendor ==  MPI2_MFGPAGE_VENDORID_ATTO) {
+			ioc_info(ioc, "Firmware download not supported for ATTO HBA.\n");
+			ret = -EPERM;
+			break;
+		}
+		fallthrough;
+	}
 	case MPI2_FUNCTION_FW_UPLOAD:
 	{
 		ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
-- 
2.36.0