From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CC7AE13AD16; Tue, 14 May 2024 11:10:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715685018; cv=none; b=Hbi74S14OxFCNupeq2WbibJQYZ8QbQaRTXnE17bH1mx7ro0+SBtd0/SBbVU0sXT4eDR7nMfAPLcITi1CrWtNgD3m2d5GRaQcI22Wk+G3Xbi9w26QP3ErJ6nPGadWrEHwZTsfwZKJIqQpFXRuXOkxw9ZB4ZvaFH6HaCCneMqna+U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715685018; c=relaxed/simple; bh=HvzTGwpkIsPYSUamkNtNMFpn7w+dLvK9BavdEgAN7rM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=F3QaXjv6N0/AQbmlTwJvY7GtjbqL6HC1gugjlXOF7LDo+bvFtglzdKAwajsiL016DQFPYb1uWjIY60glFcgE2O+Rp5ZkchSbtGTR7+UPy1h4ACwp4jqLN9cxIjKEV1oWTNZU60X+GOs1NfbqAF3XvcjxWekJekxi6hvMhQmM0Ow= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=RhuwHGDn; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="RhuwHGDn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1820C2BD10; Tue, 14 May 2024 11:10:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1715685018; bh=HvzTGwpkIsPYSUamkNtNMFpn7w+dLvK9BavdEgAN7rM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RhuwHGDnIIyaSyibuVpf/jSo3l/F9TpI9OkQQ3r0vXKXsT1tP2+74uJrZ4LT/fQ8A kwKAwejMAXYxWZuA7vALVUw33G3wnTvvHQC+eEgcJbGCsoLvuEmlRZbXbudSbV4FQU 6Rfc4YfC2IJOwEpW17prX14vBdq0hi77bqRZXdtA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Peter Wang , Bart Van Assche , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 6.6 122/301] scsi: ufs: core: Fix MCQ mode dev command timeout Date: Tue, 14 May 2024 12:16:33 +0200 Message-ID: <20240514101036.856288081@linuxfoundation.org> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240514101032.219857983@linuxfoundation.org> References: <20240514101032.219857983@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Peter Wang [ Upstream commit 2a26a11e9c258b14be6fd98f8a85f20ac1fff66e ] When a dev command times out in MCQ mode, a successfully cleared command should cause a retry. However, because we currently return 0, the caller considers the command a success which causes the following error to be logged: "Invalid offset 0x0 in descriptor IDN 0x9, length 0x0". Retry if clearing the command was successful. Signed-off-by: Peter Wang Link: https://lore.kernel.org/r/20240328111244.3599-1-peter.wang@mediatek.com Reviewed-by: Bart Van Assche Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/ufs/core/ufshcd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 8005373e20bae..344806330be16 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -3064,7 +3064,9 @@ static int ufshcd_wait_for_dev_cmd(struct ufs_hba *hba, /* MCQ mode */ if (is_mcq_enabled(hba)) { - err = ufshcd_clear_cmd(hba, lrbp->task_tag); + /* successfully cleared the command, retry if needed */ + if (ufshcd_clear_cmd(hba, lrbp->task_tag) == 0) + err = -EAGAIN; hba->dev_cmd.complete = NULL; return err; } -- 2.43.0