From patchwork Mon Jan 31 21:05:46 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Vetter X-Patchwork-Id: 12731186 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id A23DAC4332F for ; Mon, 31 Jan 2022 21:07:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 41F1E10E579; Mon, 31 Jan 2022 21:06:59 +0000 (UTC) Received: from mail-wm1-x32a.google.com (mail-wm1-x32a.google.com [IPv6:2a00:1450:4864:20::32a]) by gabe.freedesktop.org (Postfix) with ESMTPS id 234F710E537 for ; Mon, 31 Jan 2022 21:06:50 +0000 (UTC) Received: by mail-wm1-x32a.google.com with SMTP id l12-20020a7bc34c000000b003467c58cbdfso300108wmj.2 for ; Mon, 31 Jan 2022 13:06:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ffwll.ch; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=zvAncPlENd1mkArHeBkA576DDmIGdQX94f0ukCjnIXQ=; b=U2t8kjkQ/Vt2HJQRdamapjasWFD4c3zJbcxURpYTYrPL2cbDmMJxvxEJJMlW99DO/4 HUhOQG+NtbaKJIqcJQ1bk77wmHdiXo6RDrFZUBjDjoYa1m3+m13Io4vvAUPU/RdXN4pI fBNkESnc3jQO0p8GldNWuLNg+S4Y098h1Fh7o= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=zvAncPlENd1mkArHeBkA576DDmIGdQX94f0ukCjnIXQ=; b=bl154qJRbEokknvZRrppqXSbc39AQQCVAKYrRxInCzGMLO/8m5w6YXaVLxSbkPULcs 81ysjIec0s5+RE8tyIBIKfptyV4YP2eiCPwJ8nYCRaPHYSxz4alX+/6fCc6QUYr7Lm7L FholRe+kpToyJppPdTGceKHCr6EjZvydG7N+Rk1bpwXouV5RFyoXSye7PTDVTPCY7M7I PHId9BVDEu1OilR4PBQFt3/fg1Bb+ksQ5ecgJ/KAhhOUur4Vdk0Qh6BsXnj6vGPOB3q6 haCtb3N6yXkLsdFhB1ogPLfQ63xLcdrCvAOwnqJ3aXP0hjfLlWUETBI/sUqFHlAGATF1 Yw4Q== X-Gm-Message-State: AOAM532eOAcCGcr9lMiJCIjqrr3H86ZzMdtdnRHyKgKMqT0E1BtPx4Md P++np5kGIWWlfrMmjK8ncs3Svw== X-Google-Smtp-Source: ABdhPJw4OlP2ZiGsyZ53C2rKU+S/VlUSh/yp+iwZxn0Bz//sDKkThBEktGnYMjV7P/SFzkmcbMEHWA== X-Received: by 2002:a05:600c:19d0:: with SMTP id u16mr28683628wmq.35.1643663208709; Mon, 31 Jan 2022 13:06:48 -0800 (PST) Received: from phenom.ffwll.local ([2a02:168:57f4:0:efd0:b9e5:5ae6:c2fa]) by smtp.gmail.com with ESMTPSA id b11sm314961wmq.46.2022.01.31.13.06.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 Jan 2022 13:06:48 -0800 (PST) From: Daniel Vetter To: DRI Development Date: Mon, 31 Jan 2022 22:05:46 +0100 Message-Id: <20220131210552.482606-16-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20220131210552.482606-1-daniel.vetter@ffwll.ch> References: <20220131210552.482606-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 15/21] fbcon: Consistently protect deferred_takeover with console_lock() X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-fbdev@vger.kernel.org, Thomas Zimmermann , Du Cheng , Tetsuo Handa , Daniel Vetter , Intel Graphics Development , LKML , Daniel Vetter Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" This shouldn't be a problem in practice since until we've actually taken over the console there's nothing we've registered with the console/vt subsystem, so the exit/unbind path that check this can't do the wrong thing. But it's confusing, so fix it by moving it a tad later. Signed-off-by: Daniel Vetter Cc: Daniel Vetter Cc: Du Cheng Cc: Tetsuo Handa Cc: Claudio Suarez Cc: Thomas Zimmermann Acked-by: Sam Ravnborg --- drivers/video/fbdev/core/fbcon.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c index 496bc5f2133e..11b9f962af6f 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -3247,6 +3247,9 @@ static void fbcon_register_existing_fbs(struct work_struct *work) console_lock(); + deferred_takeover = false; + logo_shown = FBCON_LOGO_DONTSHOW; + for_each_registered_fb(i) fbcon_fb_registered(registered_fb[i]); @@ -3264,8 +3267,6 @@ static int fbcon_output_notifier(struct notifier_block *nb, pr_info("fbcon: Taking over console\n"); dummycon_unregister_output_notifier(&fbcon_output_nb); - deferred_takeover = false; - logo_shown = FBCON_LOGO_DONTSHOW; /* We may get called in atomic context */ schedule_work(&fbcon_deferred_takeover_work);