scsi: mpi3mr: Fix duplicate device entries when scanning through sysfs

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>

diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index 2197988333fe5c170bfb2ae7cf7488c0f01e8633..3cae8803383b6cbb9970dc8e541646fb1f6f0bf9 100644 (file)
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -3736,7 +3736,7 @@ 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)