A number of USB mass storage devices return the wrong value in response to
READ CAPACITY: They give the total number of blocks rather than the
highest block number.  Currently the usb-storage driver tries to adjust
for this by altering the contents of the reply buffer.  That's not a very
good idea because it prevents users from seeing what the device actually
has to say; it violates the principle that a transport should do nothing
more than transfer data.

This patch moves the responsibility for adjusting the capacity to the sd
driver instead, by adding a new device flag.  After this has been merged
the corresponding change (to set the flag) will be made to the usb-storage
driver.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>