From: Daisuke Matsuda <matsuda-daisuke@xxxxxxxxxxx> [ Upstream commit 2c02249fcbfc066bd33e2a7375c7006d4cb367f6 ] An incoming Read request causes multiple Read responses. If a user MR to copy data from is unavailable or responder cannot send a reply, then the error messages can be printed for each response attempt, resulting in message overflow. Link: https://lore.kernel.org/r/20220829071218.1639065-1-matsuda-daisuke@xxxxxxxxxxx Signed-off-by: Daisuke Matsuda <matsuda-daisuke@xxxxxxxxxxx> Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/infiniband/sw/rxe/rxe_resp.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/infiniband/sw/rxe/rxe_resp.c b/drivers/infiniband/sw/rxe/rxe_resp.c index e38bf958ab48..2ef21a1cba81 100644 --- a/drivers/infiniband/sw/rxe/rxe_resp.c +++ b/drivers/infiniband/sw/rxe/rxe_resp.c @@ -787,10 +787,8 @@ static enum resp_states read_reply(struct rxe_qp *qp, if (!skb) return RESPST_ERR_RNR; - err = rxe_mr_copy(mr, res->read.va, payload_addr(&ack_pkt), - payload, RXE_FROM_MR_OBJ); - if (err) - pr_err("Failed copying memory\n"); + rxe_mr_copy(mr, res->read.va, payload_addr(&ack_pkt), + payload, RXE_FROM_MR_OBJ); if (mr) rxe_put(mr); @@ -801,10 +799,8 @@ static enum resp_states read_reply(struct rxe_qp *qp, } err = rxe_xmit_packet(qp, &ack_pkt, skb); - if (err) { - pr_err("Failed sending RDMA reply.\n"); + if (err) return RESPST_ERR_RNR; - } res->read.va += payload; res->read.resid -= payload; -- 2.35.1
