From patchwork Thu Jan 10 19:03:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prarit Bhargava X-Patchwork-Id: 10756643 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 148A817E1 for ; Thu, 10 Jan 2019 19:03:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0436129D0F for ; Thu, 10 Jan 2019 19:03:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EBF6429D10; Thu, 10 Jan 2019 19:03:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 872A329D21 for ; Thu, 10 Jan 2019 19:03:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728748AbfAJTDg (ORCPT ); Thu, 10 Jan 2019 14:03:36 -0500 Received: from mx1.redhat.com ([209.132.183.28]:39116 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728561AbfAJTDg (ORCPT ); Thu, 10 Jan 2019 14:03:36 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C15147EBA9; Thu, 10 Jan 2019 19:03:35 +0000 (UTC) Received: from prarit.khw1.lab.eng.bos.redhat.com (prarit-guest.khw1.lab.eng.bos.redhat.com [10.16.200.63]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6A8125D6AA; Thu, 10 Jan 2019 19:03:34 +0000 (UTC) From: Prarit Bhargava To: linux-fbdev@vger.kernel.org Cc: Prarit Bhargava , Hans de Goede , Marko Myllynen , Steven Rostedt , Bartlomiej Zolnierkiewicz , Kees Cook , Daniel Vetter , Thierry Reding , Yisheng Xie , Petr Mladek , Sergey Senozhatsky , dri-devel@lists.freedesktop.org Subject: [PATCH v4 1/2] fbcon: Silence fbcon logo on 'quiet' boots Date: Thu, 10 Jan 2019 14:03:24 -0500 Message-Id: <20190110190325.15241-2-prarit@redhat.com> In-Reply-To: <20190110190325.15241-1-prarit@redhat.com> References: <20181030154419.2889-1-prarit@redhat.com> <20190110190325.15241-1-prarit@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Thu, 10 Jan 2019 19:03:35 +0000 (UTC) Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP On text-based systems the 'quiet' boot option will show printk levels higher than CONSOLE_LOGLEVEL_QUIET. The displaying of the Tux logo during boot can cause some consoles to lose display data and as a result confuse the end user. Do not display the Tux logo on systems that are in 'quiet' boot. v2: It helps to commit all my changes before sending them. Remove extra bracket. v3: buildbot error fix: fbcon can be built as part of a module so export console_printk v4: move console_printk change to separate patch, and drop logo cleanup Signed-off-by: Prarit Bhargava Cc: Hans de Goede Cc: Marko Myllynen Cc: Steven Rostedt (VMware) Cc: Bartlomiej Zolnierkiewicz Cc: Kees Cook Cc: Daniel Vetter Cc: Thierry Reding Cc: Yisheng Xie Cc: Petr Mladek Cc: Sergey Senozhatsky Cc: dri-devel@lists.freedesktop.org --- drivers/video/fbdev/core/fbcon.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c index 8976190b6c1f..66e37bdff1d9 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -649,11 +649,14 @@ static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, kfree(save); } + if (logo_shown == FBCON_LOGO_DONTSHOW) + return; + if (logo_lines > vc->vc_bottom) { logo_shown = FBCON_LOGO_CANSHOW; printk(KERN_INFO "fbcon_init: disable boot-logo (boot-logo bigger than screen).\n"); - } else if (logo_shown != FBCON_LOGO_DONTSHOW) { + } else { logo_shown = FBCON_LOGO_DRAW; vc->vc_top = logo_lines; } @@ -1059,9 +1062,11 @@ static void fbcon_init(struct vc_data *vc, int init) cap = info->flags; - if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW || - (info->fix.type == FB_TYPE_TEXT)) + if (vc != svc || console_loglevel <= CONSOLE_LOGLEVEL_QUIET || + (info->fix.type == FB_TYPE_TEXT)) { logo = 0; + logo_shown = FBCON_LOGO_DONTSHOW; + } if (var_to_display(p, &info->var, info)) return;