From patchwork Thu Jul 15 18:36:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 478275 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 6E03BC636CB for ; Thu, 15 Jul 2021 18:46:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 55E23613E0 for ; Thu, 15 Jul 2021 18:46:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238662AbhGOStm (ORCPT ); Thu, 15 Jul 2021 14:49:42 -0400 Received: from mail.kernel.org ([198.145.29.99]:51616 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240083AbhGOStH (ORCPT ); Thu, 15 Jul 2021 14:49:07 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 31C2E613D6; Thu, 15 Jul 2021 18:46:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626374770; bh=0I6sraG7t8CfgmD4CJhp+GC2kCQuB1+mEYLSPFGqnhs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=K6V/3U8sobaYTNSe26yJutVJa+q4uPv5ccAwW3CUXZQJXp8KsnFVqdnmQu1efX9Sz tgVvN/hgB89o77Hxoe/Q0EXeARREBxj5k+9t//PU1DpYL0J8HuvcsOaJkwER++ZmDt c5Ako7fHwcGyFhgOl2X5iGIzAVtQi8XegrpfLdqU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Brandon Syu , Wenjing Liu , Wayne Lin , Daniel Wheeler , Alex Deucher , Sasha Levin Subject: [PATCH 5.10 004/215] drm/amd/display: fix HDCP reset sequence on reinitialize Date: Thu, 15 Jul 2021 20:36:16 +0200 Message-Id: <20210715182559.222169117@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210715182558.381078833@linuxfoundation.org> References: <20210715182558.381078833@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Brandon Syu [ Upstream commit 99c248c41c2199bd34232ce8e729d18c4b343b64 ] [why] When setup is called after hdcp has already setup, it would cause to disable HDCP flow won’t execute. [how] Don't clean up hdcp content to be 0. Signed-off-by: Brandon Syu Reviewed-by: Wenjing Liu Acked-by: Wayne Lin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c index 20e554e771d1..fa8aeec304ef 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c @@ -260,7 +260,6 @@ enum mod_hdcp_status mod_hdcp_setup(struct mod_hdcp *hdcp, struct mod_hdcp_output output; enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; - memset(hdcp, 0, sizeof(struct mod_hdcp)); memset(&output, 0, sizeof(output)); hdcp->config = *config; HDCP_TOP_INTERFACE_TRACE(hdcp);