This patch suppresses error messages when copying between two arrays that
support XCOPY each, but that cannot copy data between each other.
Signed-off-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>
---
drivers/scsi/sd.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
Index: linux-4.4-rc4/drivers/scsi/sd.c
===================================================================
--- linux-4.4-rc4.orig/drivers/scsi/sd.c 2015-12-07 16:58:48.000000000 +0100
+++ linux-4.4-rc4/drivers/scsi/sd.c 2015-12-07 16:59:09.000000000 +0100
@@ -1995,6 +1995,20 @@ static int sd_done(struct scsi_cmnd *SCp
req->cmd_flags |= REQ_QUIET;
}
}
+ } else if (sshdr.asc == 0x26) {
+ switch (op) {
+ /*
+ * Copying between two arrays that support XCOPY, but
+ * cannot access each other.
+ */
+ case EXTENDED_COPY:
+ if ((SCpnt->cmnd[1] & 0x1f) == 0) {
+ good_bytes = 0;
+ req->__data_len = blk_rq_bytes(req);
+ req->cmd_flags |= REQ_QUIET;
+ }
+ break;
+ }
}
break;
default:
--
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