From patchwork Wed Nov 23 14:48:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 628792 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 D89C2C433FE for ; Wed, 23 Nov 2022 14:49:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237437AbiKWOtT (ORCPT ); Wed, 23 Nov 2022 09:49:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237484AbiKWOtO (ORCPT ); Wed, 23 Nov 2022 09:49:14 -0500 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 093AF74A83; Wed, 23 Nov 2022 06:49:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1669214951; x=1700750951; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=PZw/qx/VCBuHt8kLTtD2kAjtrp/ndgtSgsymsuc6HUA=; b=b94MSyV6Z3VbT8k4JYhSSkUqY7+WLa3Fth1u8DJFhCIB0Yl1ZDtJgzl7 vkoosvAr/k4/0X7DTa0S7fnBy9s/PHtIwmyNu2u3mJfmh/ceN+GrFBN53 84iq5BOEk4Cr/a/Do5s+wcVe6NwjddSUZ3YiREmiUR6oaaUB5LXi9WHfL hussW35TGAucXEty9DXmJvGJXux6q30N5BaOYpRooWycO5bI0XhKzUceP pXJhimV92n7JQbRbBBTW/gpyVImGvVMJfxLq4wm2V7s5tZt/ffaEVms5p C6JQ55osYLQZ1LAKnEmA09FIlYe3SsYcJVnIeTq9a7G5ZenIqFGYxPCaj g==; X-IronPort-AV: E=McAfee;i="6500,9779,10540"; a="376225198" X-IronPort-AV: E=Sophos;i="5.96,187,1665471600"; d="scan'208";a="376225198" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Nov 2022 06:48:49 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10540"; a="635936969" X-IronPort-AV: E=Sophos;i="5.96,187,1665471600"; d="scan'208";a="635936969" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga007.jf.intel.com with ESMTP; 23 Nov 2022 06:48:37 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 9096CB7; Wed, 23 Nov 2022 16:49:03 +0200 (EET) From: Andy Shevchenko To: Jakob Koschel , Andy Shevchenko , Greg Kroah-Hartman , Mathias Nyman , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Cc: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter , Kevin Cernekee , Mathias Nyman , Hans de Goede Subject: [PATCH v4 2/4] usb: gadget: hid: Convert to use list_count() Date: Wed, 23 Nov 2022 16:48:59 +0200 Message-Id: <20221123144901.40493-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221123144901.40493-1-andriy.shevchenko@linux.intel.com> References: <20221123144901.40493-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The list API now provides the list_count() to help with counting existing nodes in the list. Utilise it. Signed-off-by: Andy Shevchenko --- v4: no change v3: fixed typo in the commit message (Fabio) v2: no change drivers/usb/gadget/legacy/hid.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/usb/gadget/legacy/hid.c b/drivers/usb/gadget/legacy/hid.c index 1187ee4f316a..6196c3456e0b 100644 --- a/drivers/usb/gadget/legacy/hid.c +++ b/drivers/usb/gadget/legacy/hid.c @@ -133,14 +133,11 @@ static struct usb_configuration config_driver = { static int hid_bind(struct usb_composite_dev *cdev) { struct usb_gadget *gadget = cdev->gadget; - struct list_head *tmp; struct hidg_func_node *n = NULL, *m, *iter_n; struct f_hid_opts *hid_opts; - int status, funcs = 0; - - list_for_each(tmp, &hidg_func_list) - funcs++; + int status, funcs; + funcs = list_count(&hidg_func_list); if (!funcs) return -ENODEV;