From patchwork Sat Nov 19 11:20:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 13049686 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 23DBAC433FE for ; Sat, 19 Nov 2022 11:20:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231959AbiKSLU5 (ORCPT ); Sat, 19 Nov 2022 06:20:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49862 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231392AbiKSLUz (ORCPT ); Sat, 19 Nov 2022 06:20:55 -0500 Received: from smtp.smtpout.orange.fr (smtp-28.smtpout.orange.fr [80.12.242.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 477E12B27A for ; Sat, 19 Nov 2022 03:20:54 -0800 (PST) Received: from pop-os.home ([86.243.100.34]) by smtp.orange.fr with ESMTPA id wLtyoAfds1SdMwLtyoEjpE; Sat, 19 Nov 2022 12:20:52 +0100 X-ME-Helo: pop-os.home X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Sat, 19 Nov 2022 12:20:52 +0100 X-ME-IP: 86.243.100.34 From: Christophe JAILLET To: Nilesh Javali , GR-QLogic-Storage-Upstream@marvell.com, "James E.J. Bottomley" , "Martin K. Petersen" Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET , linux-scsi@vger.kernel.org Subject: [PATCH] scsi: qla2xxx: No need to clear memory after a dma_alloc_coherent() call Date: Sat, 19 Nov 2022 12:20:49 +0100 Message-Id: <57d6a4c0c44b9a33087d3f17a9cc245d1943d881.1668856835.git.christophe.jaillet@wanadoo.fr> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org dma_alloc_coherent() already clear the allocated memory, there is no need to explicitly call memset(). Signed-off-by: Christophe JAILLET --- Compile tested only --- drivers/scsi/qla2xxx/qla_gs.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c index 64ab070b8716..0afd6cee7113 100644 --- a/drivers/scsi/qla2xxx/qla_gs.c +++ b/drivers/scsi/qla2xxx/qla_gs.c @@ -622,8 +622,7 @@ static int qla_async_rftid(scsi_qla_host_t *vha, port_id_t *d_id) __func__); goto done_free_sp; } - ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp; - memset(ct_sns, 0, sizeof(*ct_sns)); + ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req; /* Prepare CT request */ @@ -718,8 +717,7 @@ static int qla_async_rffid(scsi_qla_host_t *vha, port_id_t *d_id, __func__); goto done_free_sp; } - ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp; - memset(ct_sns, 0, sizeof(*ct_sns)); + ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req; /* Prepare CT request */ @@ -810,8 +808,7 @@ static int qla_async_rnnid(scsi_qla_host_t *vha, port_id_t *d_id, __func__); goto done_free_sp; } - ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp; - memset(ct_sns, 0, sizeof(*ct_sns)); + ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req; /* Prepare CT request */ @@ -917,8 +914,7 @@ static int qla_async_rsnn_nn(scsi_qla_host_t *vha) __func__); goto done_free_sp; } - ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp; - memset(ct_sns, 0, sizeof(*ct_sns)); + ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req; /* Prepare CT request */ @@ -3228,10 +3224,8 @@ int qla24xx_async_gpnid(scsi_qla_host_t *vha, port_id_t *id) goto done_free_sp; } - ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp; - memset(ct_sns, 0, sizeof(*ct_sns)); - ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req; + /* CT_IU preamble */ ct_req = qla2x00_prep_ct_req(ct_sns, GPN_ID_CMD, GPN_ID_RSP_SIZE);