From: Yihang Li Date: Tue, 17 Mar 2026 06:31:47 +0000 (+0800) Subject: scsi: scsi_transport_sas: Fix the maximum channel scanning issue X-Git-Tag: v7.0-rc6~18^2~1 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d71afa9deb4d413232ba16d693f7d43b321931b4;p=thirdparty%2Fkernel%2Flinux.git scsi: scsi_transport_sas: Fix the maximum channel scanning issue After commit 37c4e72b0651 ("scsi: Fix sas_user_scan() to handle wildcard and multi-channel scans"), if the device supports multiple channels (0 to shost->max_channel), user_scan() invokes updated sas_user_scan() to perform the scan behavior for a specific transfer. However, when the user specifies shost->max_channel, it will return -EINVAL, which is not expected. Fix and support specifying the scan shost->max_channel for scanning. Fixes: 37c4e72b0651 ("scsi: Fix sas_user_scan() to handle wildcard and multi-channel scans") Signed-off-by: Yihang Li Reviewed-by: John Garry Link: https://patch.msgid.link/20260317063147.2182562-1-liyihang9@huawei.com Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c index 12124f9d5ccd..13412702188e 100644 --- a/drivers/scsi/scsi_transport_sas.c +++ b/drivers/scsi/scsi_transport_sas.c @@ -1734,7 +1734,7 @@ static int sas_user_scan(struct Scsi_Host *shost, uint channel, break; default: - if (channel < shost->max_channel) { + if (channel <= shost->max_channel) { res = scsi_scan_host_selected(shost, channel, id, lun, SCSI_SCAN_MANUAL); } else {