This patch sets scsi_host->max_id as 1 if the device's quirk flag of US_FL_SCM_MULT_TARG isn't set, because there are only 6 mass storage devices marked as mutiple targets from unusual_devs.h. This patch is a small optimization about scanning targets, and avoid scanning other 7 non-existed targets for single target device. Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx> --- drivers/usb/storage/usb.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index 31b3e1a..07b3e54 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -976,6 +976,9 @@ int usb_stor_probe2(struct us_data *us) if (us->fflags & US_FL_SINGLE_LUN) us->max_lun = 0; + if (!(us->fflags & US_FL_SCM_MULT_TARG)) + us_to_host(us)->max_id = 1; + /* Find the endpoints and calculate pipe values */ result = get_pipes(us); if (result) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
