Revert "scsi: core: Make scsi_get_lba() return the LBA"

This reverts commit d054858 which is
commit d2c945f upstream.

As reported, a lot of scsi changes were made just to resolve a 2 line
patch, so let's revert them all and then manually fix up the 2 line
fixup so that things are simpler and potential abi changes are not an
issue.

Link: https://lore.kernel.org/r/ZZ042FejzwMM5vDW@duo.ucw.cz
Reported-by: Pavel Machek <pavel@ucw.cz>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Benjamin Block <bblock@linux.ibm.com>
Cc: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

include/scsi/scsi_cmnd.h

@@ -229,13 +229,6 @@ static inline sector_t scsi_get_sector(struct scsi_cmnd *scmd)
 	return blk_rq_pos(scmd->request);
 }
 
-static inline sector_t scsi_get_lba(struct scsi_cmnd *scmd)
-{
-	unsigned int shift = ilog2(scmd->device->sector_size) - SECTOR_SHIFT;
-
-	return blk_rq_pos(scmd->request) >> shift;
-}
-
 /*
  * The operations below are hints that tell the controller driver how
  * to handle I/Os with DIF or similar types of protection information.
@@ -298,6 +291,11 @@ static inline unsigned char scsi_get_prot_type(struct scsi_cmnd *scmd)
 	return scmd->prot_type;
 }
 
+static inline sector_t scsi_get_lba(struct scsi_cmnd *scmd)
+{
+	return blk_rq_pos(scmd->request);
+}
+
 static inline u32 scsi_prot_ref_tag(struct scsi_cmnd *scmd)
 {
 	struct request *rq = blk_mq_rq_from_pdu(scmd);