/* this patch is related with following upstream kernel commit */

commit a34592ff6b78e84e11b19183b60cd240737f76f9
Author: Christoph Hellwig <hch@lst.de>
Date:   Wed Feb 9 09:28:23 2022 +0100

    scsi: drbd: Remove WRITE_SAME support
    
    REQ_OP_WRITE_SAME was only ever submitted by the legacy Linux zeroing code,
    which has switched to use REQ_OP_WRITE_ZEROES long ago.
    
    Link: https://lore.kernel.org/r/20220209082828.2629273-3-hch@lst.de
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---

diff -Nupr a/drbd/drbd_receiver.c b/drbd/drbd_receiver.c
--- a/drbd/drbd_receiver.c	2022-07-08 07:14:26.331017361 +0800
+++ b/drbd/drbd_receiver.c	2022-07-08 07:14:57.750893198 +0800
@@ -2737,8 +2737,6 @@ static unsigned long wire_flags_to_bio_o
 		return REQ_OP_WRITE_ZEROES;
 	if (dpf & DP_DISCARD)
 		return REQ_OP_DISCARD;
-	if (dpf & DP_WSAME)
-		return REQ_OP_WRITE_SAME;
 	else
 		return REQ_OP_WRITE;
 }