From patchwork Wed Feb 24 05:36:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Can Guo X-Patchwork-Id: 387523 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 273F9C433E0 for ; Wed, 24 Feb 2021 05:38:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CEB6664DFF for ; Wed, 24 Feb 2021 05:38:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233487AbhBXFhx (ORCPT ); Wed, 24 Feb 2021 00:37:53 -0500 Received: from labrats.qualcomm.com ([199.106.110.90]:1972 "EHLO labrats.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233984AbhBXFhs (ORCPT ); Wed, 24 Feb 2021 00:37:48 -0500 IronPort-SDR: zzIvBKeiGTZTxtUBNqoziZ2hlmFPpqUeIHAqQ7H29aYzlNXlkcK678EVVLtlOGN7hGU40rXhiK aX8DMkIgjgmS4Krn8acNRT529JOyVbr6cR4k/22VXWoxJaR6N/Z2XRwtGJgEI80ufKnET668iQ kEr6oeKVgEZkdCQhpLlhbqL2LJLSB8B6+08mNgQ7TVIQCfPzV1iQagUAxHd8GpaMDqn9cM4UmL W8rcL9f6xrkIIDzPI3quMf0msBfKJ7CtAzGbTLOcWsuwZ0Gos8nXw43bwDdOPZWT8eAlXddaXp WVk= X-IronPort-AV: E=Sophos;i="5.81,201,1610438400"; d="scan'208";a="47788278" Received: from unknown (HELO ironmsg01-sd.qualcomm.com) ([10.53.140.141]) by labrats.qualcomm.com with ESMTP; 23 Feb 2021 21:37:05 -0800 X-QCInternal: smtphost Received: from stor-presley.qualcomm.com ([192.168.140.85]) by ironmsg01-sd.qualcomm.com with ESMTP; 23 Feb 2021 21:37:03 -0800 Received: by stor-presley.qualcomm.com (Postfix, from userid 359480) id E3BDD21A10; Tue, 23 Feb 2021 21:37:03 -0800 (PST) From: Can Guo To: asutoshd@codeaurora.org, nguyenb@codeaurora.org, hongwus@codeaurora.org, linux-scsi@vger.kernel.org, kernel-team@android.com, cang@codeaurora.org Cc: Alim Akhtar , Avri Altman , "James E.J. Bottomley" , "Martin K. Petersen" , Stanley Chu , Bean Huo , Jaegeuk Kim , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v2 3/3] scsi: ufs: Remove redundant checks of !hba in suspend/resume callbacks Date: Tue, 23 Feb 2021 21:36:49 -0800 Message-Id: <1614145010-36079-4-git-send-email-cang@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1614145010-36079-1-git-send-email-cang@codeaurora.org> References: <1614145010-36079-1-git-send-email-cang@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Runtime and system suspend/resume can only come after hba probe invokes platform_set_drvdata(pdev, hba), meaning hba cannot be NULL in these PM callbacks, so remove the checks of !hba. Signed-off-by: Can Guo Reviewed-by: Avri Altman --- drivers/scsi/ufs/ufshcd.c | 21 --------------------- 1 file changed, 21 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 013eb73..2517ef1 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -95,8 +95,6 @@ 16, 4, buf, __len, false); \ } while (0) -static bool early_suspend; - int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len, const char *prefix) { @@ -8978,11 +8976,6 @@ int ufshcd_system_suspend(struct ufs_hba *hba) int ret = 0; ktime_t start = ktime_get(); - if (!hba) { - early_suspend = true; - return 0; - } - down(&hba->host_sem); if (!hba->is_powered) @@ -9034,14 +9027,6 @@ int ufshcd_system_resume(struct ufs_hba *hba) int ret = 0; ktime_t start = ktime_get(); - if (!hba) - return -EINVAL; - - if (unlikely(early_suspend)) { - early_suspend = false; - down(&hba->host_sem); - } - if (!hba->is_powered || pm_runtime_suspended(hba->dev)) /* * Let the runtime resume take care of resuming @@ -9074,9 +9059,6 @@ int ufshcd_runtime_suspend(struct ufs_hba *hba) int ret = 0; ktime_t start = ktime_get(); - if (!hba) - return -EINVAL; - if (!hba->is_powered) goto out; else @@ -9115,9 +9097,6 @@ int ufshcd_runtime_resume(struct ufs_hba *hba) int ret = 0; ktime_t start = ktime_get(); - if (!hba) - return -EINVAL; - if (!hba->is_powered) goto out; else