IB/srp: Report receive errors correctly

commit cd4e38542a5c2cab94e5410fb17c1cc004a60792 upstream.

The IB spec does not guarantee that the opcode is available in error
completions.  Hence do not rely on it.  See also commit 948d1e889e5b
("IB/srp: Introduce srp_handle_qp_err()").

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 93a35a15b6e329e42740465e919aebc53e8ef9e7..17b58f4f0681003b54796dc1b2e1c065ffae816d 100644 (file)
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1303,14 +1303,13 @@ static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
                             PFX "Recv failed with error code %d\n", res);
 }
 
-static void srp_handle_qp_err(enum ib_wc_status wc_status,
-                             enum ib_wc_opcode wc_opcode,
+static void srp_handle_qp_err(enum ib_wc_status wc_status, bool send_err,
                              struct srp_target_port *target)
 {
        if (target->connected && !target->qp_in_error) {
                shost_printk(KERN_ERR, target->scsi_host,
                             PFX "failed %s status %d\n",
-                            wc_opcode & IB_WC_RECV ? "receive" : "send",
+                            send_err ? "send" : "receive",
                             wc_status);
        }
        target->qp_in_error = true;
@@ -1326,7 +1325,7 @@ static void srp_recv_completion(struct ib_cq *cq, void *target_ptr)
                if (likely(wc.status == IB_WC_SUCCESS)) {
                        srp_handle_recv(target, &wc);
                } else {
-                       srp_handle_qp_err(wc.status, wc.opcode, target);
+                       srp_handle_qp_err(wc.status, false, target);
                }
        }
 }
@@ -1342,7 +1341,7 @@ static void srp_send_completion(struct ib_cq *cq, void *target_ptr)
                        iu = (struct srp_iu *) (uintptr_t) wc.wr_id;
                        list_add(&iu->list, &target->free_tx);
                } else {
-                       srp_handle_qp_err(wc.status, wc.opcode, target);
+                       srp_handle_qp_err(wc.status, true, target);
                }
        }
 }