From patchwork Mon Apr 17 23:06:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bart Van Assche X-Patchwork-Id: 674459 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 505E6C77B76 for ; Mon, 17 Apr 2023 23:07:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230104AbjDQXHP (ORCPT ); Mon, 17 Apr 2023 19:07:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229830AbjDQXHO (ORCPT ); Mon, 17 Apr 2023 19:07:14 -0400 Received: from mail-pf1-f179.google.com (mail-pf1-f179.google.com [209.85.210.179]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 999F12D60 for ; Mon, 17 Apr 2023 16:07:13 -0700 (PDT) Received: by mail-pf1-f179.google.com with SMTP id d2e1a72fcca58-63b5312bd4fso6255708b3a.0 for ; Mon, 17 Apr 2023 16:07:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681772833; x=1684364833; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=H9HN99QwsksXCBCaVQ2bJ/Ic4jm/KkGkP0u89WLoXno=; b=acUg7ih28MAGEZ48i94sR7gD+v3UOxRbefZ0gAdGSbUCD1RHsAnY0ff1duxIEcQ4+y +hjzCJkyiI4LXS2JyJqk3zUcZKzwMDMzj/v+YcDoXFF1kNlpGEVa3v/zJDiwmdOHQX0C pNfT4Z9UmDHTrkgpmKTBCZOuo1B24xzlMgZVqg38gjk6/vRJEu3gEXT48/EtjYJH1Yro zMj1aN6pHN2rXFYLad4pY1RtXVwHIKPdix0g8EpCiBQKU+JyuFHmYb5ts8grWZ/rmVvU DSLOOkymbJZOggCWYDr4vSVRh7OsUYufmKycBjrMnOxfBYsbU75JYUF0CT9+2ogLoQBg +BUg== X-Gm-Message-State: AAQBX9cgOUgbhke1xvFIBgdJ3OqzTDADhbw//aNFb/R0VTm7Oqx7227V zD/d9hgjl0SrAADTekPeXwI= X-Google-Smtp-Source: AKy350bWIZsqi1QgUMQySBAS0TOn9YInEX6VM8a1Fq128x1L3hRVd4B3vHXyvpYe8Ua8aEhNfg+ngA== X-Received: by 2002:a17:90b:1007:b0:247:5c00:10 with SMTP id gm7-20020a17090b100700b002475c000010mr190338pjb.2.1681772833094; Mon, 17 Apr 2023 16:07:13 -0700 (PDT) Received: from bvanassche-linux.mtv.corp.google.com ([2620:15c:211:201:2cdd:e77:b589:1518]) by smtp.gmail.com with ESMTPSA id t4-20020a17090ad14400b002478d21de2bsm2539576pjw.36.2023.04.17.16.07.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Apr 2023 16:07:12 -0700 (PDT) From: Bart Van Assche To: "Martin K . Petersen" Cc: Jaegeuk Kim , Avri Altman , Adrian Hunter , linux-scsi@vger.kernel.org, Bart Van Assche , Asutosh Das , Tomas Henzl , "James E.J. Bottomley" , Bart Van Assche , Bean Huo , Stanley Chu , Asutosh Das Subject: [PATCH v2 2/4] scsi: ufs: Simplify ufshcd_wl_shutdown() Date: Mon, 17 Apr 2023 16:06:54 -0700 Message-ID: <20230417230656.523826-3-bvanassche@acm.org> X-Mailer: git-send-email 2.40.0.634.g4ca3ef3211-goog In-Reply-To: <20230417230656.523826-1-bvanassche@acm.org> References: <20230417230656.523826-1-bvanassche@acm.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Now that sd_shutdown() fails future I/O the code for quiescing LUNs in ufshcd_wl_shutdown() is superfluous. Remove the code for quiescing LUNs. Also remove the ufshcd_rpm_get_sync() call because it is not necessary to resume a UFS device before submitting a START STOP UNIT command. Cc: Asutosh Das Cc: Tomas Henzl Signed-off-by: Bart Van Assche --- drivers/ufs/core/ufshcd.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 9434328ba323..784787cf08c3 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -9768,22 +9768,12 @@ static int ufshcd_wl_resume(struct device *dev) static void ufshcd_wl_shutdown(struct device *dev) { struct scsi_device *sdev = to_scsi_device(dev); - struct ufs_hba *hba; - - hba = shost_priv(sdev->host); + struct ufs_hba *hba = shost_priv(sdev->host); down(&hba->host_sem); hba->shutting_down = true; up(&hba->host_sem); - /* Turn on everything while shutting down */ - ufshcd_rpm_get_sync(hba); - scsi_device_quiesce(sdev); - shost_for_each_device(sdev, hba->host) { - if (sdev == hba->ufs_device_wlun) - continue; - scsi_device_quiesce(sdev); - } __ufshcd_wl_suspend(hba, UFS_SHUTDOWN_PM); }