From mboxrd@z Thu Jan 1 00:00:00 1970 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1F748C6FD19 for ; Thu, 9 Mar 2023 16:04:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C60B710E86E; Thu, 9 Mar 2023 16:03:11 +0000 (UTC) Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3F16F10E864 for ; Thu, 9 Mar 2023 16:02:24 +0000 (UTC) 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 F3CC920189; Thu, 9 Mar 2023 16:02:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1678377743; 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=L8sTlmFAIEYjGf/xMWjBdmdvaz1qIS9TL0x1Z8/8ESg=; b=Jx/cdr4saXpUkoi5xNEm0dH6/pc+Nm9w1N47Q9Y3wj24Jvq3WZreC8KxOjqGHI5eFbAdj8 4Wa0rwhaMD5EK2UBDyUdldSUPkMMqs0rjJPd0LLIjS3VrMtXKeaTeejRZly8Ky7/biDATh KWLiIirbeCcla0AwDz5x7Xknw1Mqi2I= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1678377743; 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=L8sTlmFAIEYjGf/xMWjBdmdvaz1qIS9TL0x1Z8/8ESg=; b=E1tv0ydMgl1akO+Ymzgw1Y15ff7EzGNdKqau/hDrgJ6hrLZi/oqdhH/safjC1XW0/PdrPC cjAGhE2wOkqzL1Dw== 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 9BDD013A73; Thu, 9 Mar 2023 16:02:22 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id AF42JQ4DCmQHbgAAMHmgww (envelope-from ); Thu, 09 Mar 2023 16:02:22 +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 Subject: [PATCH v2 045/101] fbdev/matroxfb: Parse option string with struct option_iter Date: Thu, 9 Mar 2023 17:01:05 +0100 Message-Id: <20230309160201.5163-46-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 Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Zimmermann , linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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/matrox/matroxfb_base.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/video/fbdev/matrox/matroxfb_base.c b/drivers/video/fbdev/matrox/matroxfb_base.c index a043a737ea9f..4c2086136e9b 100644 --- a/drivers/video/fbdev/matrox/matroxfb_base.c +++ b/drivers/video/fbdev/matrox/matroxfb_base.c @@ -101,6 +101,7 @@ */ #include +#include #include #include "matroxfb_base.h" @@ -2333,17 +2334,14 @@ static void __exit matrox_done(void) { /* ************************* init in-kernel code ************************** */ -static int __init matroxfb_setup(char *options) { +static int __init matroxfb_setup(const char *options) +{ + struct option_iter iter; char *this_opt; - DBG(__func__) - - if (!options || !*options) - return 0; - - while ((this_opt = strsep(&options, ",")) != NULL) { - if (!*this_opt) continue; + option_iter_init(&iter, options); + while (option_iter_next(&iter, &this_opt)) { dprintk("matroxfb_setup: option %s\n", this_opt); if (!strncmp(this_opt, "dev:", 4)) @@ -2467,6 +2465,9 @@ static int __init matroxfb_setup(char *options) { } } } + + option_iter_release(&iter); + return 0; } -- 2.39.2