From patchwork Thu Mar 9 16:00:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 661275 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 3BE1AC64EC4 for ; Thu, 9 Mar 2023 16:03:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231761AbjCIQCl (ORCPT ); Thu, 9 Mar 2023 11:02:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47238 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230496AbjCIQCJ (ORCPT ); Thu, 9 Mar 2023 11:02:09 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DC32AF6C5E; Thu, 9 Mar 2023 08:02:08 -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-out2.suse.de (Postfix) with ESMTPS id 5CC402017A; Thu, 9 Mar 2023 16:02:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1678377727; 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=fAKwWillpJMLRw6wMQPDlzuh9+KWUcuRQNAZe1IaSrQ=; b=RSlu/cjSsyBJb0MNuFlWjDGlixOEHTWKfPF4CA+Rq/LSjRBhQiMJVX6fcb/RDWUtkmGaJN WxBFUszBc4pRI2i7IhFqOz7kntSHcGEOqd8h7jajUJqkFhvJfHTAbVYvHPu+OszvS03e1r uATh4kb07ZzFr8ryJzEhzb7B4hhjHxg= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1678377727; 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=fAKwWillpJMLRw6wMQPDlzuh9+KWUcuRQNAZe1IaSrQ=; b=AMAKtOMDSze1CiWVcaaE9i5u9eSGfP91ts9jiKv2c+WvFiqtTHhXEtSSpMJBfV7138SSHC sERhL8+1fIr3VdDw== 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 F35161391B; Thu, 9 Mar 2023 16:02:06 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id gBB2Ov4CCmQHbgAAMHmgww (envelope-from ); Thu, 09 Mar 2023 16:02:06 +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 007/101] fbdev/amifb: Parse option string with struct option_iter Date: Thu, 9 Mar 2023 17:00:27 +0100 Message-Id: <20230309160201.5163-8-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/amifb.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/video/fbdev/amifb.c b/drivers/video/fbdev/amifb.c index 9517aa5bd2c0..a09edc576437 100644 --- a/drivers/video/fbdev/amifb.c +++ b/drivers/video/fbdev/amifb.c @@ -40,6 +40,7 @@ * for more details. */ +#include #include #include #include @@ -2345,16 +2346,14 @@ static void __init amifb_setup_mcap(char *spec) amifb_vfmax = vmax; } -static int __init amifb_setup(char *options, struct platform_device *pdev) +static int __init amifb_setup(const char *options, struct platform_device *pdev) { + struct option_iter iter; char *this_opt; - if (!options || !*options) - return 0; + option_iter_init(&iter, options); - while ((this_opt = strsep(&options, ",")) != NULL) { - if (!*this_opt) - continue; + while (option_iter_next(&iter, &this_opt)) { if (!strcmp(this_opt, "inverse")) { fb_invert_cmaps(); } else if (!strcmp(this_opt, "ilbm")) @@ -2369,6 +2368,8 @@ static int __init amifb_setup(char *options, struct platform_device *pdev) } } + option_iter_release(&iter); + if (min_fstrt < 48) min_fstrt = 48;