Strip leading spaces off of a SCSI disk's serial number

sys/cam/scsi/scsi_xpt.c
	Strip leading spaces off of a SCSI disk's reported serial number
	when populating the CAM serial number. This affects the output of
	"diskinfo -v" and the names of /dev/diskid/DISK-* device nodes,
	among other things.

	SPC5r05 says that the Product Serial Number field from the Unit
	Serial Number VPD page is right-aligned. So any leading spaces are
	not part of the actual serial number. Most devices don't left-pad
	their serial numbers, but some do. In particular, the SN VPD page
	that an LSI HBA emulates for a SATA drive contains enough
	left-padding to fill a 20-byte field.

UPDATING
	Add a note to UPDATING, because some users may have to update
	/etc/fstab or geom labels.

Reviewed by:	ken, mav
MFC after:	Never
Sponsored by:	Spectra Logic Corp
Differential Revision:	https://reviews.freebsd.org/D6516

0 files changed, 0 insertions, 0 deletions