sdp: Bad behaviour when setting low rcvbuf size

Signed-off-by: Amir Vadai <amirv@mellanox.co.il>

diff --git a/drivers/infiniband/ulp/sdp/sdp_main.c b/drivers/infiniband/ulp/sdp/sdp_main.c
index 2bb01b2e1c7dfb12b427c8466a6bde2c758b06ef..d9d8ca8a717fe51cf0354a2953a20565685873b0 100644 (file)
--- a/drivers/infiniband/ulp/sdp/sdp_main.c
+++ b/drivers/infiniband/ulp/sdp/sdp_main.c
@@ -2301,15 +2301,17 @@ sdp_mid_data:
 
                if (poll_recv_cq(sk)) {
                        sdp_dbg_data(sk, "sk_wait_data %ld\n", timeo);
-                       if (remote_credits(ssk) <= SDP_MIN_TX_CREDITS) {
+                       if (remote_credits(ssk) < SDP_MIN_TX_CREDITS) {
                                /* Remote host can not send, so there is no
                                 * point of waiting for data.
                                 * This situation is possible if current host
                                 * can not send credits-update due to lack of
                                 * memory.
                                 */
-                               if (!copied)
+                               if (!copied) {
                                        copied = -ENOMEM;
+                                       sdp_warn(sk, "out of credits\n");
+                               }
                                break;
                        }