USB: storage: avoid scanning other targets for single target device
authorMing Lei <ming.lei@canonical.com>
Sat, 19 Jan 2013 11:30:30 +0000 (19:30 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 21 Jan 2013 00:12:53 +0000 (16:12 -0800)
commitf4cc1834bdc47d0574ceffb728f256f67e1190ef
tree2fcc53dcb64fbc5990a846b68a5744d6be6eb010
parentfde26380315d7d57816efc143b7924c82dba764d
USB: storage: avoid scanning other targets for single target device

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@canonical.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/storage/usb.c