From patchwork Thu Dec 10 06:26:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gupta, Anshuman" X-Patchwork-Id: 11963389 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 409C1C2BB9A for ; Thu, 10 Dec 2020 06:41:00 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DDB2E23B98 for ; Thu, 10 Dec 2020 06:40:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DDB2E23B98 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4EC466E9DE; Thu, 10 Dec 2020 06:40:59 +0000 (UTC) Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id B82376E9DE; Thu, 10 Dec 2020 06:40:58 +0000 (UTC) IronPort-SDR: Vaosw7jZ/eK8h22betbEJoyhMQtfO+oVwyrOQHQa+wCOdHVXgPMmznZGg1jXRr8M8pO8eflrUN hglKm0j65Z1Q== X-IronPort-AV: E=McAfee;i="6000,8403,9830"; a="174322231" X-IronPort-AV: E=Sophos;i="5.78,407,1599548400"; d="scan'208";a="174322231" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Dec 2020 22:40:58 -0800 IronPort-SDR: WavysNkxEg9Wl29wU+hbphbKzzkLedJY2gSRTDCTZxqjpJZJ1D5LF9/ndoKfNxuIFS8xsLNBym 0dQcSyo5uQfg== X-IronPort-AV: E=Sophos;i="5.78,407,1599548400"; d="scan'208";a="318854457" Received: from genxfsim-desktop.iind.intel.com ([10.223.74.178]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Dec 2020 22:40:55 -0800 From: Anshuman Gupta To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH v7 12/18] misc/mei/hdcp: Fix AUTH_STREAM_REQ cmd buffer len Date: Thu, 10 Dec 2020 11:56:34 +0530 Message-Id: <20201210062640.11783-13-anshuman.gupta@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201210062640.11783-1-anshuman.gupta@intel.com> References: <20201210062640.11783-1-anshuman.gupta@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jani.nikula@intel.com, Karthik B S , uma.shankar@intel.com, seanpaul@chromium.org, Anshuman Gupta , Tomas Winkler , juston.li@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Fix the size of WIRED_REPEATER_AUTH_STREAM_REQ cmd buffer size. It is based upon the actual number of MST streams and size of wired_cmd_repeater_auth_stream_req_in. Excluding the size of hdcp_cmd_header. v2: - hdcp_cmd_header size annotation nitpick. [Tomas] Cc: Tomas Winkler Cc: Ramalingam C Acked-by: Tomas Winkler Reviewed-by: Uma Shankar Reviewed-by: Ramalingam C Tested-by: Karthik B S Signed-off-by: Anshuman Gupta --- drivers/misc/mei/hdcp/mei_hdcp.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index 9ae9669e46ea..3506a3534294 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -569,8 +569,7 @@ static int mei_hdcp_verify_mprime(struct device *dev, verify_mprime_in->header.api_version = HDCP_API_VERSION; verify_mprime_in->header.command_id = WIRED_REPEATER_AUTH_STREAM_REQ; verify_mprime_in->header.status = ME_HDCP_STATUS_SUCCESS; - verify_mprime_in->header.buffer_len = - WIRED_CMD_BUF_LEN_REPEATER_AUTH_STREAM_REQ_MIN_IN; + verify_mprime_in->header.buffer_len = cmd_size - sizeof(verify_mprime_in->header); verify_mprime_in->port.integrated_port_type = data->port_type; verify_mprime_in->port.physical_port = (u8)data->fw_ddi;