From patchwork Mon May 20 08:22:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Daniel Vetter X-Patchwork-Id: 10950367 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 348E1912 for ; Mon, 20 May 2019 08:22:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 25DF1286AC for ; Mon, 20 May 2019 08:22:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 19D7528740; Mon, 20 May 2019 08:22:48 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 6971B2873D for ; Mon, 20 May 2019 08:22:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731387AbfETIWp (ORCPT ); Mon, 20 May 2019 04:22:45 -0400 Received: from mail-ed1-f65.google.com ([209.85.208.65]:40882 "EHLO mail-ed1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730718AbfETIWo (ORCPT ); Mon, 20 May 2019 04:22:44 -0400 Received: by mail-ed1-f65.google.com with SMTP id j12so22535330eds.7 for ; Mon, 20 May 2019 01:22:43 -0700 (PDT) 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=4HMcA3TizyI3bWUSVLBg8JyaO8Kn3WkToKLrAKg7Usk=; b=THvANnfiO+VPHwaLX6hiMosNMlh77yzzpABl0zUCBAwFGZFkWtfXpItjMshjBvd+9Y TSR+YSLxco2R1iX54BhQpW8L/9/jKRtw1BnFFMU+5Pm6DbeGs2/0r/8c/l6wzTLB4Irh S8mtbFCJOx2hi2/3V4qV8WjoGmvO93yPtZj3o= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=4HMcA3TizyI3bWUSVLBg8JyaO8Kn3WkToKLrAKg7Usk=; b=let8Q62xy0LJmAZTRZ+bRcGX1/vGAQmzL80svGsHztW5J/FZ824ncgH6FJ1utZ339B QDcobcKls2UsRDqRLHOOFWfk+REj8uRluOIHS4M+tDYgrHMLjQGAzAFJtsln5PKXJ0jR eZPRqnZ1L62Innt9PYKV9UMWdyWNFzWXPMpyg6vSGemt7ezUdWg04tnF6SlGH0qx8fmb Iad8n7QyK0VFFT6vLH166JXFBPInj1VbjBQ/3n+lNEuoVuz0ygKyL9b5ZozfNaTMxVLy jTwlUz1figlQH5sHcAhcsqpRJBZq1Yo5i4EhBZxv4ayRVPYfKwk3GygA/Z0wkORgNmEV UmIw== X-Gm-Message-State: APjAAAV7acxpTRENAy06vXIR3oAAJ8kWuBVziVXMjT3s5rfEwsAvU3MR +zgQC5+/2U5ag+wVouojvOMdew== X-Google-Smtp-Source: APXvYqztBstF/tIB3bAMhgRXMwDXlyAWS/2voV6GhfjJj0iuZ1QgSz/H5oFI1a+XUwblbYV8Hld5kA== X-Received: by 2002:aa7:c0d3:: with SMTP id j19mr42944311edp.179.1558340562531; Mon, 20 May 2019 01:22:42 -0700 (PDT) Received: from phenom.ffwll.local ([2a02:168:569e:0:3106:d637:d723:e855]) by smtp.gmail.com with ESMTPSA id t25sm3021263ejx.8.2019.05.20.01.22.41 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 20 May 2019 01:22:41 -0700 (PDT) From: Daniel Vetter To: DRI Development Cc: Intel Graphics Development , LKML , Daniel Vetter , Daniel Vetter , Bartlomiej Zolnierkiewicz , Hans de Goede , Sergey Senozhatsky , Peter Rosin , Kees Cook , Konstantin Khorenko , Yisheng Xie , =?utf-8?b?TWljaGHFgiBNaXJvc8WCYXc=?= , Mikulas Patocka , Thomas Zimmermann , linux-fbdev@vger.kernel.org Subject: [PATCH 17/33] fbcon: call fbcon_fb_bind directly Date: Mon, 20 May 2019 10:22:00 +0200 Message-Id: <20190520082216.26273-18-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190520082216.26273-1-daniel.vetter@ffwll.ch> References: <20190520082216.26273-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 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 Also remove the error return value. That's all errors for either driver bugs (trying to unbind something that isn't bound), or errors of the new driver that will take over. There's nothing the outgoing driver can do about this anyway, so switch over to void. Signed-off-by: Daniel Vetter Cc: Bartlomiej Zolnierkiewicz Cc: Daniel Vetter Cc: Hans de Goede Cc: Sergey Senozhatsky Cc: Peter Rosin Cc: Kees Cook Cc: Konstantin Khorenko Cc: Yisheng Xie Cc: "Michał Mirosław" Cc: Mikulas Patocka Cc: Thomas Zimmermann Cc: linux-fbdev@vger.kernel.org --- drivers/video/fbdev/core/fbcon.c | 24 +++++++----------------- drivers/video/fbdev/core/fbmem.c | 7 ++----- include/linux/fb.h | 2 -- include/linux/fbcon.h | 2 ++ 4 files changed, 11 insertions(+), 24 deletions(-) diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c index 35443add7f7e..a8d12914b559 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -3042,7 +3042,7 @@ static int fbcon_mode_deleted(struct fb_info *info, } #ifdef CONFIG_VT_HW_CONSOLE_BINDING -static int fbcon_unbind(void) +static void fbcon_unbind(void) { int ret; @@ -3051,25 +3051,21 @@ static int fbcon_unbind(void) if (!ret) fbcon_has_console_bind = 0; - - return ret; } #else -static inline int fbcon_unbind(void) -{ - return -EINVAL; -} +static inline void fbcon_unbind(void) {} #endif /* CONFIG_VT_HW_CONSOLE_BINDING */ /* called with console_lock held */ -static int fbcon_fb_unbind(int idx) +void fbcon_fb_unbind(struct fb_info *info) { int i, new_idx = -1, ret = 0; + int idx = info->node; WARN_CONSOLE_UNLOCKED(); if (!fbcon_has_console_bind) - return 0; + return; for (i = first_fb_vc; i <= last_fb_vc; i++) { if (con2fb_map[i] != idx && @@ -3102,15 +3098,13 @@ static int fbcon_fb_unbind(int idx) idx, 0); if (ret) { con2fb_map[i] = idx; - return ret; + return; } } } } - ret = fbcon_unbind(); + fbcon_unbind(); } - - return ret; } /* called with console_lock held */ @@ -3348,10 +3342,6 @@ static int fbcon_event_notify(struct notifier_block *self, mode = event->data; ret = fbcon_mode_deleted(info, mode); break; - case FB_EVENT_FB_UNBIND: - idx = info->node; - ret = fbcon_fb_unbind(idx); - break; case FB_EVENT_SET_CONSOLE_MAP: /* called with console lock held */ con2fb = event->data; diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index 1987aba4f5a2..156523cc48bf 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -1708,8 +1708,6 @@ static int do_register_framebuffer(struct fb_info *fb_info) static int unbind_console(struct fb_info *fb_info) { - struct fb_event event; - int ret; int i = fb_info->node; if (i < 0 || i >= FB_MAX || registered_fb[i] != fb_info) @@ -1717,12 +1715,11 @@ static int unbind_console(struct fb_info *fb_info) console_lock(); lock_fb_info(fb_info); - event.info = fb_info; - ret = fb_notifier_call_chain(FB_EVENT_FB_UNBIND, &event); + fbcon_fb_unbind(fb_info); unlock_fb_info(fb_info); console_unlock(); - return ret; + return 0; } static int __unlink_framebuffer(struct fb_info *fb_info); diff --git a/include/linux/fb.h b/include/linux/fb.h index fd60207c0685..38fae1678939 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -151,8 +151,6 @@ struct fb_cursor_user { #define FB_EVENT_CONBLANK 0x0C /* Get drawing requirements */ #define FB_EVENT_GET_REQ 0x0D -/* Unbind from the console if possible */ -#define FB_EVENT_FB_UNBIND 0x0E /* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga_switcheroo */ #define FB_EVENT_REMAP_ALL_CONSOLE 0x0F /* A hardware display blank early change occurred */ diff --git a/include/linux/fbcon.h b/include/linux/fbcon.h index 94a71e9e1257..38d44fdb6d14 100644 --- a/include/linux/fbcon.h +++ b/include/linux/fbcon.h @@ -6,11 +6,13 @@ void __init fb_console_init(void); void __exit fb_console_exit(void); int fbcon_fb_registered(struct fb_info *info); void fbcon_fb_unregistered(struct fb_info *info); +void fbcon_fb_unbind(struct fb_info *info); #else static inline void fb_console_init(void) {} static inline void fb_console_exit(void) {} static inline int fbcon_fb_registered(struct fb_info *info) { return 0; } static inline void fbcon_fb_unregistered(struct fb_info *info) {} +static inline void fbcon_fb_unbind(struct fb_info *info) {} #endif #endif /* _LINUX_FBCON_H */