From patchwork Mon Jan 22 11:03:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiri Slaby X-Patchwork-Id: 765913 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 005BF47A47; Mon, 22 Jan 2024 11:05:26 +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=1705921527; cv=none; b=njKdN9RoAoAKW0iPQfyG5Y0IzcjbYhFyUkmHtdBsci8lm5eFPpEEAXqsUDwhcHGHjGslLulH9WbVvkI/VIMm81P+/tV6U39Cw6MSnQS8F5fedu8kS+jgV0pc09C8t8u9K/VguE3piLe/yYuaJmNs5MqtlH/dmVJL/2N0Y6nZJbk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921527; c=relaxed/simple; bh=2URKPRL7zfWbHQYqpoKtEkBU2SALWu3e2GJlko088uA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oNyLZ3A6tF5KdlFVK2eJ8/DyxnuPl6Vv+3Ih/JJHHmvhMfplT1TN3YlSxVLTsXdtZwYrZNytMBI6tyDEto8/SN4zGcM7mzqF8tkDrghZJF57Su0b32SvPlLVPyXPbzZfhbFSBzXLQANWsjY3uX9xKCjt80QPtumlAxpof1ZXgVs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=uzUIcl3I; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="uzUIcl3I" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CCABEC43390; Mon, 22 Jan 2024 11:05:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1705921526; bh=2URKPRL7zfWbHQYqpoKtEkBU2SALWu3e2GJlko088uA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uzUIcl3IVgdt1LAfkiVpeKfY50AYKvfkmObnKYuViAvyPsXvlgJjkZEVtW3QmLoe9 I/YvcsOjspyVNZsdjaQuG+rArH/xY/E2IrrVtWLU2m/3derN05jBl2dUmTvO+b77Mr a82d3Kyd0MfhEbAg1kiB6itfc34E3RSpQ4WGxVbvOLOj8dzz7BoPaocd8xJJBYbZHi II16H+iunyulp4AtsHZMAF4uTr9Iwr+GkI/YwrKG43tatrQO444uVhxUSYnXANuYFU KUQKlOYciL1DZZbtpgA0A99HIq+6c5BlC8+JAnQTjcaQ1LdJ6nYliHba8axR5knQfy jXi1oDoQFj0cg== From: "Jiri Slaby (SUSE)" To: gregkh@linuxfoundation.org Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, "Jiri Slaby (SUSE)" , Helge Deller , linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH v2 38/47] tty: vt: change consw::con_set_origin() return type Date: Mon, 22 Jan 2024 12:03:52 +0100 Message-ID: <20240122110401.7289-39-jirislaby@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240122110401.7289-1-jirislaby@kernel.org> References: <20240122110401.7289-1-jirislaby@kernel.org> Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The return value of consw::con_set_origin() is only true/false, meaining if vc->vc_origin is set to vc->vc_screenbuf or not. So switch the type and returned values accordingly. And document the hook. Signed-off-by: Jiri Slaby (SUSE) Cc: Helge Deller Cc: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org --- drivers/video/console/vgacon.c | 8 ++++---- include/linux/console.h | 5 ++++- 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index 4d1c8f5863af..7597f04b0dc7 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -65,7 +65,7 @@ static struct vgastate vgastate; * Interface used by the world */ -static int vgacon_set_origin(struct vc_data *c); +static bool vgacon_set_origin(struct vc_data *c); static struct uni_pagedict *vgacon_uni_pagedir; static int vgacon_refcount; @@ -1100,15 +1100,15 @@ static int vgacon_resize(struct vc_data *c, unsigned int width, return 0; } -static int vgacon_set_origin(struct vc_data *c) +static bool vgacon_set_origin(struct vc_data *c) { if (vga_is_gfx || /* We don't play origin tricks in graphic modes */ (console_blanked && !vga_palette_blanked)) /* Nor we write to blanked screens */ - return 0; + return false; c->vc_origin = c->vc_visible_origin = vga_vram_base; vga_set_mem_top(c); vga_rolled_over = 0; - return 1; + return true; } static void vgacon_save_screen(struct vc_data *c) diff --git a/include/linux/console.h b/include/linux/console.h index 6bb7e5e37ae4..82e4b554a801 100644 --- a/include/linux/console.h +++ b/include/linux/console.h @@ -55,6 +55,9 @@ enum vc_intensity; * @con_set_palette: sets the palette of the console to @table (optional) * @con_scrolldelta: the contents of the console should be scrolled by @lines. * Invoked by user. (optional) + * @con_set_origin: set origin (see &vc_data::vc_origin) of the @vc. If not + * provided or returns false, the origin is set to + * @vc->vc_screenbuf. (optional) */ struct consw { struct module *owner; @@ -87,7 +90,7 @@ struct consw { void (*con_set_palette)(struct vc_data *vc, const unsigned char *table); void (*con_scrolldelta)(struct vc_data *vc, int lines); - int (*con_set_origin)(struct vc_data *vc); + bool (*con_set_origin)(struct vc_data *vc); void (*con_save_screen)(struct vc_data *vc); u8 (*con_build_attr)(struct vc_data *vc, u8 color, enum vc_intensity intensity,