From patchwork Thu Jan 18 07:57:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiri Slaby X-Patchwork-Id: 765098 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 0FB0B2E852; Thu, 18 Jan 2024 07:59:23 +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=1705564763; cv=none; b=H3uLUjCAH7tF3AcYNqu76DX7u2xJpFKdV2Gpl2Vzso/kq6wWYdJSpPlGoWgy1dwQZX+mV0Pr2uzIMYpU4TPKnf31as+StVYWG47FdNoicbhlY7wdnvPMAmFQF+NJkJ9XvaJe4OqNxw6hejg0CQX7n0e3dIAYkKsgoj1v/svSq2g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705564763; c=relaxed/simple; bh=+Fey0ueL3fs+YfoywPjRe7ybSQ7PCBnb+Q6J1ddQlD8=; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID: X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding; b=kRoTueQQ1jXNNEv3So2SHnBJ0z4pqjIkfW9KUpHe+cMD8gPWn6WxrK24v6Dqs5paDS8/XZm9XNBEq9bm6SoddDbiqEDF9g9tqy8NckFCYgSaVG7d52EwlzRl56aURtgRUlkwRWSRUmSxp68mDSWMjAa7jlJk6h7rG11Yikz2bPc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=i6d0N+d0; 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="i6d0N+d0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 158B8C43399; Thu, 18 Jan 2024 07:59:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1705564762; bh=+Fey0ueL3fs+YfoywPjRe7ybSQ7PCBnb+Q6J1ddQlD8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=i6d0N+d0AoOKuyftlq2UstduK0SAteraz7/1E0aTPJEQfef6OmG9CSofeaGqyUdKA hwKgSj9tEJR5fT59H/Izk8fUdoEqrDAEWg/N87P+xddlAIv6psQeNzXX7udJPzfYd2 M01zz2/WKFXSoo20pLY4mZuIErSwMTflEv1KDIFx2kCwSQ9msgpt5yxukoKWhs8Ty5 Ltu0WoFKcFd6E0TFeYwWmSoPigVQXjaktPHZLdn7CCYJ+61ZPt/a1BdxYNNQrKLYAK UX41bBxpOaqaLe+xJFhNfhsK4GsZHLYKXFOgcbA2Kcp/O/o19WoqssSadd5S49uwx4 rp8Eqbl0abYRA== 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 36/45] tty: vt: change consw::con_set_origin() return type Date: Thu, 18 Jan 2024 08:57:47 +0100 Message-ID: <20240118075756.10541-37-jirislaby@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240118075756.10541-1-jirislaby@kernel.org> References: <20240118075756.10541-1-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 ea086b39c6f5..4a40da81990d 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 543de22a3f23..c07e1ce6bd14 100644 --- a/include/linux/console.h +++ b/include/linux/console.h @@ -63,6 +63,9 @@ 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; @@ -95,7 +98,7 @@ 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,