This is from RHEL4. I do not have any info from our bugzilla. All
I could find was something like this thread
http://lkml.org/lkml/2005/1/7/346

Report lun for linux does not work. It may be our lun format code or
it may be the device. It is probably not worth it to add anything
special for this device, so the patch just adds BLIST_NOREPORTLUN.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>