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Subject[PATCH 4.17 090/220] IB/isert: fix T10-pi check mask setting
Date
4.17-stable review patch.  If anyone has any objections, please let me know.

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

From: Max Gurtovoy <maxg@mellanox.com>

commit 0e12af84cdd3056460f928adc164f9e87f4b303b upstream.

A copy/paste bug (probably) caused setting of an app_tag check mask
in case where a ref_tag check was needed.

Fixes: 38a2d0d429f1 ("IB/isert: convert to the generic RDMA READ/WRITE API")
Fixes: 9e961ae73c2c ("IB/isert: Support T10-PI protected transactions")
Cc: stable@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/infiniband/ulp/isert/ib_isert.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -2116,7 +2116,7 @@ isert_set_sig_attrs(struct se_cmd *se_cm

sig_attrs->check_mask =
(se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD ? 0xc0 : 0) |
- (se_cmd->prot_checks & TARGET_DIF_CHECK_REFTAG ? 0x30 : 0) |
+ (se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG ? 0x30 : 0) |
(se_cmd->prot_checks & TARGET_DIF_CHECK_REFTAG ? 0x0f : 0);
return 0;
}

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