[PATCH 5.10 6/7] Revert "scsi: core: Add scsi_prot_ref_tag() helper"

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5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

This reverts commit 294d66c35a4e019a9dfe889fe382adce1cc3773e which is
commit 7ba46799d34695534666a3f71a2be10ea85ece6c 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@xxxxxxxxxx
Reported-by: Pavel Machek <pavel@xxxxxx>
Cc: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Cc: Bart Van Assche <bvanassche@xxxxxxx>
Cc: Benjamin Block <bblock@xxxxxxxxxxxxx>
Cc: Sasha Levin <sashal@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 include/scsi/scsi_cmnd.h |    7 -------
 1 file changed, 7 deletions(-)

--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -291,13 +291,6 @@ static inline sector_t scsi_get_lba(stru
 	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);
-
-	return t10_pi_ref_tag(rq);
-}
-
 static inline unsigned int scsi_prot_interval(struct scsi_cmnd *scmd)
 {
 	return scmd->device->sector_size;






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