From mboxrd@z Thu Jan 1 00:00:00 1970 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 6476CECAAD1 for ; Tue, 30 Aug 2022 17:21:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231267AbiH3RU6 (ORCPT ); Tue, 30 Aug 2022 13:20:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59728 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229476AbiH3RU1 (ORCPT ); Tue, 30 Aug 2022 13:20:27 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A4B021400A; Tue, 30 Aug 2022 10:19:51 -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 ams.source.kernel.org (Postfix) with ESMTPS id 60D83B81CD3; Tue, 30 Aug 2022 17:19:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BCC57C433D7; Tue, 30 Aug 2022 17:19:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1661879982; bh=5QvKRRAHDIo7HHKgbgxqt8ycMrr/leXRZbEgZYnHQDc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eBCtEKRyajrUYKTPT9hUtsMNgrSjio1kOmLhu98UH/W6hGZ/GKwBBUxvQEHFJEnFo UzPZKMR+gmqgY1aZ7O5YsKC03U4VqfDOcDQrOt1wWnq02CoZeIGHt8/jgiBiFpsl9J 72oIT2611LRuRG19P90hwaUVNWFQpQTQx+Fd4W75d5iPRvh84tlR6S9anT/GhoE+Z3 Nl+Mzgo5/tFG0pfhfpofb5mdJ9yGpePu0VeNH4pUMQScFU8xxnX74+d5qtvJC9jl/T Ad2ZPsXBBQmUqOaxrDpAb51K81nivPgQlCMw9AqlmN/QZEje4stNpxXusZNpOFHsdB hVboHQHkHOKHg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Bart Van Assche , Stanley Chu , "Martin K . Petersen" , Sasha Levin , jejb@linux.ibm.com, matthias.bgg@gmail.com, beanhuo@micron.com, avri.altman@wdc.com, adrian.hunter@intel.com, linux-scsi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH AUTOSEL 5.19 14/33] scsi: ufs: core: Reduce the power mode change timeout Date: Tue, 30 Aug 2022 13:18:05 -0400 Message-Id: <20220830171825.580603-14-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220830171825.580603-1-sashal@kernel.org> References: <20220830171825.580603-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Bart Van Assche [ Upstream commit 8f2c96420c6ec3dcb18c8be923e24c6feaa5ccf6 ] The current power mode change timeout (180 s) is so large that it can cause a watchdog timer to fire. Reduce the power mode change timeout to 10 seconds. Link: https://lore.kernel.org/r/20220811234401.1957911-1-bvanassche@acm.org Reviewed-by: Stanley Chu Signed-off-by: Bart Van Assche Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/ufs/core/ufshcd.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index a51ca56a0ebe7..829da9cb14a86 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -8723,6 +8723,8 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, struct scsi_device *sdp; unsigned long flags; int ret, retries; + unsigned long deadline; + int32_t remaining; spin_lock_irqsave(hba->host->host_lock, flags); sdp = hba->ufs_device_wlun; @@ -8755,9 +8757,14 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, * callbacks hence set the RQF_PM flag so that it doesn't resume the * already suspended childs. */ + deadline = jiffies + 10 * HZ; for (retries = 3; retries > 0; --retries) { + ret = -ETIMEDOUT; + remaining = deadline - jiffies; + if (remaining <= 0) + break; ret = scsi_execute(sdp, cmd, DMA_NONE, NULL, 0, NULL, &sshdr, - START_STOP_TIMEOUT, 0, 0, RQF_PM, NULL); + remaining / HZ, 0, 0, RQF_PM, NULL); if (!scsi_status_is_check_condition(ret) || !scsi_sense_valid(&sshdr) || sshdr.sense_key != UNIT_ATTENTION) -- 2.35.1