From patchwork Mon Jan 11 08:11:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gupta, Anshuman" X-Patchwork-Id: 12010007 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=-16.8 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 7388BC433E0 for ; Mon, 11 Jan 2021 08:26:57 +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 3C986216C4 for ; Mon, 11 Jan 2021 08:26:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3C986216C4 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 B167D89FC5; Mon, 11 Jan 2021 08:26:56 +0000 (UTC) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id B8A5789FC5; Mon, 11 Jan 2021 08:26:55 +0000 (UTC) IronPort-SDR: J4NpfhKUiyX5VF/axju9rCbQmimmnKfJEKtTm5irW3jD3SAZkZKQwRW8fKhbfG/+sxh+eVZip2 N04Ssw3ulyUg== X-IronPort-AV: E=McAfee;i="6000,8403,9860"; a="177046188" X-IronPort-AV: E=Sophos;i="5.79,338,1602572400"; d="scan'208";a="177046188" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jan 2021 00:26:55 -0800 IronPort-SDR: 68q54atmxjMHo3LC8toXIkY+3k4SDiLF0FdBhwIaMDrUJbPazj4Oipa7kuzgSOxtAsE5N96p+8 KfniAJdHMlFQ== X-IronPort-AV: E=Sophos;i="5.79,338,1602572400"; d="scan'208";a="464094051" Received: from unknown (HELO genxfsim-desktop.iind.intel.com) ([10.223.74.179]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jan 2021 00:26:52 -0800 From: Anshuman Gupta To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH v9 12/19] misc/mei/hdcp: Fix AUTH_STREAM_REQ cmd buffer len Date: Mon, 11 Jan 2021 13:41:13 +0530 Message-Id: <20210111081120.28417-13-anshuman.gupta@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210111081120.28417-1-anshuman.gupta@intel.com> References: <20210111081120.28417-1-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;