[PATCH] USB: Make removable-LUN support a non-test option in the g_file_storage driver

This patch follows the suggestions sent by Todd Fischer and Diego Dompe
for making removable-LUN support part of the normal non-testing version of
the g_file_storage driver.  It also moves LUN device registration to the
correct place and eliminates a code path that stalls the bulk-out pipe in
a racy way.

There are also some smaller changes: update some comments, add initial
debugging support for USB suspend/resume, and miscellaneous code cleanups.
Last but not least, the driver has been sufficiently stable for
sufficiently long that it's fair to remove the "(DEVELOPMENT)" warning in
Kconfig.
Sent-by: Todd Fischer <toddf@cadenux.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/usb/gadget/Kconfig

@@ -275,7 +275,7 @@ config USB_GADGETFS
 	  dynamically linked module called "gadgetfs".
 
 config USB_FILE_STORAGE
-	tristate "File-backed Storage Gadget (DEVELOPMENT)"
+	tristate "File-backed Storage Gadget"
 	# we don't support the SA1100 because of its limitations
 	depends on USB_GADGET_SA1100 = n
 	help
@@ -288,7 +288,7 @@ config USB_FILE_STORAGE
 	  dynamically linked module called "g_file_storage".
 
 config USB_FILE_STORAGE_TEST
-	bool "File-backed Storage Gadget test version"
+	bool "File-backed Storage Gadget testing version"
 	depends on USB_FILE_STORAGE
 	default n
 	help