[PATCH 5.14 151/169] scsi: mpi3mr: Fix duplicate device entries when scanning through sysfs

Greg Kroah-Hartman
2021-10-25T19:58:46Z

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

[ Upstream commit 97e6ea6d78064e7f1e9e19c45dc690aabbb71297 ]

When scanning devices through the 'scan' attribute in sysfs, the user will
observe duplicate device entries in lsscsi command output.

Set the shost's max_channel to zero to avoid this.

Link: https://lore.kernel.org/r/20211014055425.30719-1-sreekanth.reddy@broadcom.com
Fixes: 824a156633df ("scsi: mpi3mr: Base driver code")
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, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index 24ac7ddec749..206c2598ade3 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -3755,7 +3755,7 @@ mpi3mr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
shost->max_lun = -1;
shost->unique_id = mrioc->id;

- shost->max_channel = 1;
+ shost->max_channel = 0;
shost->max_id = 0xFFFFFFFF;

if (prot_mask >= 0)
--
2.33.0