From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 8503CC3F2CD for ; Tue, 3 Mar 2020 02:50:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5C20C246E6 for ; Tue, 3 Mar 2020 02:50:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583203839; bh=t2rrqzoW7TB77qiw1SOKTPOwUk9Edw9mxwPjCXvnKmI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=FIS/xS6T5mNWWmqLUGult77CJ+K6Uq0CR5zIZ1hyU5e1bw6/nh4aMAzaIx4eO/RKi //SuZAxfZzY2ylAqH7PdZcGvLkMe4E6vB0y2bQ9sEl7Ax9kta7d91RIfvNbjEqHq0+ gF5Vm3U/g9otSL84E6IqUHxuz1QkXxzM+s+U6PBY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729231AbgCCCuh (ORCPT ); Mon, 2 Mar 2020 21:50:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:47310 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729172AbgCCCu2 (ORCPT ); Mon, 2 Mar 2020 21:50:28 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C901C246EA; Tue, 3 Mar 2020 02:50:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583203827; bh=t2rrqzoW7TB77qiw1SOKTPOwUk9Edw9mxwPjCXvnKmI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=J+FrvuZQJCm4HkWRq3NzlpxuFV4+AHv+XmrRSpZYCcsnRJSPcIThPi+s5sq+AcLhJ itocPdDs9o3S03jAiPh6GwlKl+kJ0JrL3El0huPDUFSKurn6E8ymIaQxw+1eCtZW5D PyZCJu0mkoJPwlkkI1NIkX/12he13xA8mYNSX73Y= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: John Stultz , Rob Clark , Sean Paul , Sami Tolvanen , Todd Kjos , Alistair Delva , Amit Pundir , Sumit Semwal , freedreno@lists.freedesktop.org, clang-built-linux@googlegroups.com, Nick Desaulniers , Rob Clark , Sasha Levin , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 4.4 04/11] drm: msm: Fix return type of dsi_mgr_connector_mode_valid for kCFI Date: Mon, 2 Mar 2020 21:50:14 -0500 Message-Id: <20200303025021.10754-4-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200303025021.10754-1-sashal@kernel.org> References: <20200303025021.10754-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: John Stultz [ Upstream commit 7fd2dfc3694922eb7ace4801b7208cf9f62ebc7d ] I was hitting kCFI crashes when building with clang, and after some digging finally narrowed it down to the dsi_mgr_connector_mode_valid() function being implemented as returning an int, instead of an enum drm_mode_status. This patch fixes it, and appeases the opaque word of the kCFI gods (seriously, clang inlining everything makes the kCFI backtraces only really rough estimates of where things went wrong). Thanks as always to Sami for his help narrowing this down. Cc: Rob Clark Cc: Sean Paul Cc: Sami Tolvanen Cc: Todd Kjos Cc: Alistair Delva Cc: Amit Pundir Cc: Sumit Semwal Cc: freedreno@lists.freedesktop.org Cc: clang-built-linux@googlegroups.com Signed-off-by: John Stultz Reviewed-by: Nick Desaulniers Tested-by: Amit Pundir Signed-off-by: Rob Clark Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/dsi/dsi_manager.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c index 0455ff75074ad..439dfb69e2ef8 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c @@ -302,7 +302,7 @@ static int dsi_mgr_connector_get_modes(struct drm_connector *connector) return num; } -static int dsi_mgr_connector_mode_valid(struct drm_connector *connector, +static enum drm_mode_status dsi_mgr_connector_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { int id = dsi_mgr_connector_get_id(connector); -- 2.20.1