[PATCH] Target/iser: Gracefully reject T10-PI enabled connect request if not supported

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In case user chose to set T10-PI enable on the target while
the IB device does not support it, gracefully reject the request.

Reported-by: Slava Shwartsman <valyushash@xxxxxxxxx>
Signed-off-by: Sagi Grimberg <sagig@xxxxxxxxxxxx>
---
 drivers/infiniband/ulp/isert/ib_isert.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 9e91235..27205fb 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -663,8 +663,9 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
 
 	pi_support = np->tpg_np->tpg->tpg_attrib.t10_pi;
 	if (pi_support && !device->pi_capable) {
-		pr_err("Protection information requested but not supported\n");
-		ret = -EINVAL;
+		pr_err("Protection information requested but not supported, "
+		       "rejecting connect request\n");
+		ret = rdma_reject(cma_id, NULL, 0);
 		goto out_mr;
 	}
 
-- 
1.7.1

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