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 70FF913A256; Tue, 14 May 2024 10:38:01 +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=1715683081; cv=none; b=KjvWkzvDfLPZhRukQOlRNY1+qfG6z0ffZ8dcA7uwa61eeKCnZEh3n8Pa/QYIUTVOiWfBw3rbUyAfOBhbxRcJBJeeA3lC7cb82nYPxry8SexKge4nBHTPt30MnQIaKY8l5Yd3SHU+H51ITyz4g6p/IMEyi+TWjc6XhgLXePuYuqY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715683081; c=relaxed/simple; bh=XciNWBk3ZvKLczCN5rSQe2YTLBYpqnOxWW8cU3rPc9w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=LSrRja/t+9ELLvyDN+H7Y1KRY9WfvCnjjLrkRWjT0QVUw8IdGeaq9wIXLYd2SmipQv8mQBOSxoubALsjZNJGEpN1SwZdsucqHQYVJmj7tGupVnt+E7E/Fe6L/xcakvsc3ZHUhQccv76CrFBEUj5CpwaDX7Qz/9+nqU7NfcZdkVQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=cRpMU9RO; 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="cRpMU9RO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D9C6EC2BD10; Tue, 14 May 2024 10:37:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1715683081; bh=XciNWBk3ZvKLczCN5rSQe2YTLBYpqnOxWW8cU3rPc9w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cRpMU9ROjqqNpBEEjQbKNTk+Jydm3qMXL2hE7Sj3v39tjYqr2pu5TtD+PTGl4lV/I 5nSuqD3ldHA1VrhKQ/AAzvVjntAd8N0ZUigc35XWhkeX5bCIQBE4KWjftik16U+IRW XJnju/6cA7F3XiRiNTubN8GxQ3q5rbP538dUR+cg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Harry Wentland , Rodrigo Siqueira , Roman Li , Alex Hung , Alex Deucher , Sasha Levin Subject: [PATCH 6.8 163/336] drm/amd/display: Skip on writeback when its not applicable Date: Tue, 14 May 2024 12:16:07 +0200 Message-ID: <20240514101044.759448477@linuxfoundation.org> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240514101038.595152603@linuxfoundation.org> References: <20240514101038.595152603@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 6.8-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Hung [ Upstream commit ecedd99a9369fb5cde601ae9abd58bca2739f1ae ] [WHY] dynamic memory safety error detector (KASAN) catches and generates error messages "BUG: KASAN: slab-out-of-bounds" as writeback connector does not support certain features which are not initialized. [HOW] Skip them when connector type is DRM_MODE_CONNECTOR_WRITEBACK. Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3199 Reviewed-by: Harry Wentland Reviewed-by: Rodrigo Siqueira Acked-by: Roman Li Signed-off-by: Alex Hung Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 0d3e553647993..9044214dfdbdf 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -3028,6 +3028,10 @@ static int dm_resume(void *handle) /* Do mst topology probing after resuming cached state*/ drm_connector_list_iter_begin(ddev, &iter); drm_for_each_connector_iter(connector, &iter) { + + if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) + continue; + aconnector = to_amdgpu_dm_connector(connector); if (aconnector->dc_link->type != dc_connection_mst_branch || aconnector->mst_root) @@ -5879,6 +5883,9 @@ get_highest_refresh_rate_mode(struct amdgpu_dm_connector *aconnector, &aconnector->base.probed_modes : &aconnector->base.modes; + if (aconnector->base.connector_type == DRM_MODE_CONNECTOR_WRITEBACK) + return NULL; + if (aconnector->freesync_vid_base.clock != 0) return &aconnector->freesync_vid_base; @@ -8633,10 +8640,10 @@ static void amdgpu_dm_commit_audio(struct drm_device *dev, if (!drm_atomic_crtc_needs_modeset(new_crtc_state)) continue; +notify: if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) continue; -notify: aconnector = to_amdgpu_dm_connector(connector); mutex_lock(&adev->dm.audio_lock); -- 2.43.0