From patchwork Thu Mar 9 16:00:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 661257 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 945FDC74A4B for ; Thu, 9 Mar 2023 16:04:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231350AbjCIQDq (ORCPT ); Thu, 9 Mar 2023 11:03:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47490 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231638AbjCIQCW (ORCPT ); Thu, 9 Mar 2023 11:02:22 -0500 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC09DF7EC9; Thu, 9 Mar 2023 08:02:21 -0800 (PST) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 41F5722156; Thu, 9 Mar 2023 16:02:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1678377740; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UUhTX6veO6KsY0Dpn+In+/O3oAyGJ8vyl1FETD8qkzA=; b=idWhZvv1OFds5xjRkPCJSk7FUrp/5Q+5yONgyOkRk74bgyQR6l2Hu1Ldh9Czwafi2kvpb6 JDE3IVHFJZrlPfSrHcLWwMYl8CDKEspqus0mb+eN629cWYmF0Zk+nIGUN/tliQTK7hS+di ivOD/T7z7BxIyuDXhRtIuPEYTj0nTmg= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1678377740; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UUhTX6veO6KsY0Dpn+In+/O3oAyGJ8vyl1FETD8qkzA=; b=VW4393UvuEQyXD1vy0JgI3/62OjzOgpoo3xaehvYjXVrFZMzeUR8iwtJTX7uevpydCf5bf +ZIXjKbN08MUscCA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id D7A931391B; Thu, 9 Mar 2023 16:02:19 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id qITRMwsDCmQHbgAAMHmgww (envelope-from ); Thu, 09 Mar 2023 16:02:19 +0000 From: Thomas Zimmermann To: deller@gmx.de, geert+renesas@glider.be, timur@kernel.org, rdunlap@infradead.org, paulus@samba.org, benh@kernel.crashing.org, linux@armlinux.org.uk, pjones@redhat.com, adaplas@gmail.com, s.hauer@pengutronix.de, shawnguo@kernel.org, mbroemme@libmpq.org, thomas@winischhofer.net, James.Bottomley@HansenPartnership.com, sudipm.mukherjee@gmail.com, teddy.wang@siliconmotion.com, corbet@lwn.net Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v2 038/101] fbdev/intelfb: Parse option string with struct option_iter Date: Thu, 9 Mar 2023 17:00:58 +0100 Message-Id: <20230309160201.5163-39-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230309160201.5163-1-tzimmermann@suse.de> References: <20230309160201.5163-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Use struct option_iter to walk over the individual options in the driver's option string. Replaces the hand-written strsep() loop with a clean interface. The helpers for struct option_iter handle empty option strings and empty options transparently. The struct's _init and _release functions duplicate and release the option string's memory buffer as needed. Done in preparation of constifying the option string. Signed-off-by: Thomas Zimmermann --- drivers/video/fbdev/intelfb/intelfbdrv.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/intelfb/intelfbdrv.c b/drivers/video/fbdev/intelfb/intelfbdrv.c index 8368c3601cdb..43d677897392 100644 --- a/drivers/video/fbdev/intelfb/intelfbdrv.c +++ b/drivers/video/fbdev/intelfb/intelfbdrv.c @@ -108,6 +108,7 @@ */ #include +#include #include #include #include @@ -324,8 +325,9 @@ static __inline__ int get_opt_bool(const char *this_opt, const char *name, return 1; } -static int __init intelfb_setup(char *options) +static int __init intelfb_setup(const char *options) { + struct option_iter iter; char *this_opt; DBG_MSG("intelfb_setup\n"); @@ -349,9 +351,9 @@ static int __init intelfb_setup(char *options) * video=intelfb:1024x768-16@75,accel=0 */ - while ((this_opt = strsep(&options, ","))) { - if (!*this_opt) - continue; + option_iter_init(&iter, options); + + while (option_iter_next(&iter, &this_opt)) { if (get_opt_bool(this_opt, "accel", &accel)) ; else if (get_opt_int(this_opt, "vram", &vram)) @@ -373,6 +375,8 @@ static int __init intelfb_setup(char *options) } } + option_iter_release(&iter); + return 0; }