From nobody Sat Feb 7 08:59:29 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B98B4C4332F for ; Wed, 19 Oct 2022 10:37:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231485AbiJSKhn (ORCPT ); Wed, 19 Oct 2022 06:37:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46750 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231818AbiJSKg6 (ORCPT ); Wed, 19 Oct 2022 06:36:58 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DEE58F01B; Wed, 19 Oct 2022 03:15:56 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 60429CE21B3; Wed, 19 Oct 2022 09:13:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4E266C433C1; Wed, 19 Oct 2022 09:13:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666170811; bh=2vttJVL/wGU2aeD9rhWr5CzNN4oH2sKTlJIu2eSZwmQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1KkITEmOv1iZFOs1p5SurGBmrFbRt6U4LM15r+l/FKUlS73G8qVTgpF9AM0Dz6B+P uE2lV5DggZiWt9+UR2kheqYIjryejgHDNVwJOMP23BW0HcVxZ5W+LorQWxVabjSrBZ JR2y5V6sLcVK1mZ2NCBc3gS4JHnR8dMCJHkQU6zE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Daisuke Matsuda , Leon Romanovsky , Sasha Levin Subject: [PATCH 6.0 796/862] RDMA/rxe: Delete error messages triggered by incoming Read requests Date: Wed, 19 Oct 2022 10:34:43 +0200 Message-Id: <20221019083325.076112879@linuxfoundation.org> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20221019083249.951566199@linuxfoundation.org> References: <20221019083249.951566199@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Daisuke Matsuda [ 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@fu= jitsu.com Signed-off-by: Daisuke Matsuda Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- 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/r= xe/rxe_resp.c index b36ec5c4d5e0..7c336db5cb54 100644 --- a/drivers/infiniband/sw/rxe/rxe_resp.c +++ b/drivers/infiniband/sw/rxe/rxe_resp.c @@ -809,10 +809,8 @@ static enum resp_states read_reply(struct rxe_qp *qp, if (!skb) return RESPST_ERR_RNR; =20 - err =3D 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); =20 @@ -823,10 +821,8 @@ static enum resp_states read_reply(struct rxe_qp *qp, } =20 err =3D rxe_xmit_packet(qp, &ack_pkt, skb); - if (err) { - pr_err("Failed sending RDMA reply.\n"); + if (err) return RESPST_ERR_RNR; - } =20 res->read.va +=3D payload; res->read.resid -=3D payload; --=20 2.35.1