From patchwork Tue Jan 24 19:02:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Niklas Cassel X-Patchwork-Id: 13114613 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 6A931C25B4E for ; Tue, 24 Jan 2023 19:04:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234623AbjAXTEk (ORCPT ); Tue, 24 Jan 2023 14:04:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42164 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234451AbjAXTDw (ORCPT ); Tue, 24 Jan 2023 14:03:52 -0500 Received: from esa5.hgst.iphmx.com (esa5.hgst.iphmx.com [216.71.153.144]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F412E19696; Tue, 24 Jan 2023 11:03:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1674587028; x=1706123028; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=xQaojDl/zBRreCgbFNYyP4u+d54nre5JLHifYVnzUBw=; b=jyGysHVu0qEz56WQND2Uf75WfJSFchrDbbZBWk8etEySwm47HBDUM9Fb z3TjzBT39OKM1S0VC/1lwJHkU7oqVEoC0N2GhIHLseNvBdVO30AUUOTaZ sjTZ5aiRdPzaiXJTx3vIll+iHwQ0puPCuxCX00TxfbOHDpP+z1Cg6iDc4 6kHBaai7WXxcL3gp+BNzxwAdqXH8oPKBgRhcXqo8wSX/qDcnpMqqIx6zZ ewqhe0bK72Wz4/8okjJugU/kHtMIZIlZ5m6YFIbUiYIlr5MPQYQ1R6XuQ 3XqY4nRxasa5FVXlEq+4fSuITx13bJDGgkC82aIXAfVcRp1F2bXaec1wx A==; X-IronPort-AV: E=Sophos;i="5.97,243,1669046400"; d="scan'208";a="221472966" Received: from h199-255-45-15.hgst.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 25 Jan 2023 03:03:48 +0800 IronPort-SDR: +PzpOKcGEa95q2nkJLfNvJnUN/Q+pjtb93z/8JJeRRCdxQXlT6B9wqn4KYRq+fqhRsO+oCzbeX OIYEM7eEsZCJpyXVlrPg+/X1XldH9mcKJm9D+PKZrlNOXiqdAnfaqQPDsNrsfTRHAGWR3rQquj U2F+QWssSIwcSDLrFl99gEdtHKx5+MjMIOki2yHW9/hYwFhgWetR+dZemM3Zx4p99N1GytzP15 CwiIjd1ZkQCzv6ZArEBMHBL+VSZ4+jz2p3ozaJYbc0hHaQjmchLJR8KkUfCRMQN2RwQTPSZghX gEg= Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 24 Jan 2023 10:15:37 -0800 IronPort-SDR: IoTpfbX3rV3FS6/lN8qLeO9B07tGetx9Y6VptVR0uPmkKfol2pDLblxlhfuSF2iJh0Bw2CykqS llvgsJfNbpcYa2hRYLIJWPJGP0G/KZuIFJSX/87pStgIOJYM/M/tYqCCrpoHbP0VaR+AEQv7hx KayZFRkAdzD1/8e2czFxrvMShK838hbYedOEM94EG5nb01s98gg62Tm0vHTeoHJoOEO7u9Nimo D6zWlOYekuYVFCtiRIgc/+1AJztVUyHlU9Su4uh/Qb74RAejuA79lqeoKoAf+kHf6uJJDoPGMM mGg= WDCIronportException: Internal Received: from unknown (HELO x1-carbon.lan) ([10.225.164.48]) by uls-op-cesaip02.wdc.com with ESMTP; 24 Jan 2023 11:03:47 -0800 From: Niklas Cassel To: Damien Le Moal Cc: Christoph Hellwig , Hannes Reinecke , linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org, linux-block@vger.kernel.org, Niklas Cassel Subject: [PATCH v3 10/18] ata: libata-scsi: remove unnecessary !cmd checks Date: Tue, 24 Jan 2023 20:02:56 +0100 Message-Id: <20230124190308.127318-11-niklas.cassel@wdc.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230124190308.127318-1-niklas.cassel@wdc.com> References: <20230124190308.127318-1-niklas.cassel@wdc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org There is no need to check if !cmd as this can only happen for ATA internal commands which uses the ATA internal tag (32). Most users of ata_scsi_set_sense() are from _xlat functions that translate a scsicmd to an ATA command. These obviously have a qc->scsicmd. ata_scsi_qc_complete() can also call ata_scsi_set_sense() via ata_gen_passthru_sense() / ata_gen_ata_sense(), called via ata_scsi_qc_complete(). This callback is only called for translated commands, so it also has a qc->scsicmd. ata_eh_analyze_ncq_error(): the NCQ error log can only contain a 0-31 value, so it will never be able to get the ATA internal tag (32). ata_eh_request_sense(): only called by ata_eh_analyze_tf(), which is only called when iteratating the QCs using ata_qc_for_each_raw(), which does not include the internal tag. Since there is no existing call site where cmd can be NULL, remove the !cmd check from ata_scsi_set_sense() and ata_scsi_set_sense_information(). Suggested-by: Christoph Hellwig Signed-off-by: Niklas Cassel Reviewed-by: Hannes Reinecke --- drivers/ata/libata-scsi.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index e093c7a7deeb..26746609bf76 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -209,9 +209,6 @@ void ata_scsi_set_sense(struct ata_device *dev, struct scsi_cmnd *cmd, { bool d_sense = (dev->flags & ATA_DFLAG_D_SENSE); - if (!cmd) - return; - scsi_build_sense(cmd, d_sense, sk, asc, ascq); } @@ -221,9 +218,6 @@ void ata_scsi_set_sense_information(struct ata_device *dev, { u64 information; - if (!cmd) - return; - information = ata_tf_read_block(tf, dev); if (information == U64_MAX) return;