From patchwork Tue Nov 22 15:35:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 13052508 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 17038C4332F for ; Tue, 22 Nov 2022 15:35:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DBF1D10E40E; Tue, 22 Nov 2022 15:35:32 +0000 (UTC) Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6110110E40E; Tue, 22 Nov 2022 15:35:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1669131314; x=1700667314; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=S4XpqXdqGWk1whCKjTw1Tbea2OWWldUyTEhirb3Ex2I=; b=hdBl0KQ4mTAxxerylUlNQeKjhUwcHWzUw4BK4eNCnFOBHoCQmHS6N2BA KF56gyPkOEVJ0TA3KmEar06KRG8zJ7r/zsCGRnPGcpAUyLVxOqTtMPQgY vXRP9PhtodF1uDWIpz8keGoysVZ3c2xQglQjrUtRI/rTptMb3uVh41XY3 vMoEk2o1uII+1l0R43Do9GT68n25y3sClGK9sHkW37axpOJ/b7iCrg9XT 6YXSPqAVebhq8DqcWqnodfoRD1lubLObfYsj506OI6tRaNJZkaSGHoTpF FMdQwHaLRfsYBY/IEDurV09+ecDzeHe9sVcET81Dig9M9vGgCufc80Jmu g==; X-IronPort-AV: E=McAfee;i="6500,9779,10539"; a="315662397" X-IronPort-AV: E=Sophos;i="5.96,184,1665471600"; d="scan'208";a="315662397" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Nov 2022 07:35:05 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10539"; a="747395673" X-IronPort-AV: E=Sophos;i="5.96,184,1665471600"; d="scan'208";a="747395673" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga002.fm.intel.com with ESMTP; 22 Nov 2022 07:35:00 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 4E543F7; Tue, 22 Nov 2022 17:35:26 +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 Subject: [PATCH v3 2/4] usb: gadget: hid: Convert to use list_count() Date: Tue, 22 Nov 2022 17:35:14 +0200 Message-Id: <20221122153516.52577-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221122153516.52577-1-andriy.shevchenko@linux.intel.com> References: <20221122153516.52577-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 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: Tvrtko Ursulin , Kevin Cernekee , Mathias Nyman , Hans de Goede , Rodrigo Vivi Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The list API now provides the list_count() to help with counting existing nodes in the list. Utilise it. Signed-off-by: Andy Shevchenko --- 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;