From patchwork Wed Dec 11 00:08:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zijun Hu X-Patchwork-Id: 13902536 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 59111E7717F for ; Wed, 11 Dec 2024 00:10:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CF1D810EA1E; Wed, 11 Dec 2024 00:10:06 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=icloud.com header.i=@icloud.com header.b="i7ULaqNJ"; dkim-atps=neutral Received: from pv50p00im-ztdg10011901.me.com (pv50p00im-ztdg10011901.me.com [17.58.6.50]) by gabe.freedesktop.org (Postfix) with ESMTPS id B0B6210EA20 for ; Wed, 11 Dec 2024 00:10:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=icloud.com; s=1a1hai; t=1733875805; bh=IkjKR7CpPDn98sYTBYYKWLyDknZN2jQuVV1iJBo+zv4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To: x-icloud-hme; b=i7ULaqNJ6npZoQmi/DlhBbIEWJu7GI69KaMyYUblUqal8FK4F46s2fI9kVjlkyVkn /J31gITsAX2iW08eu5uCjVerPyGc9yUXvvOhqjsK2j/zgaIOOXvd7qUuKlH2TIN7mg JoFPlyF9X6ILP0iHvJyXD7qPp7YLtee3LEkSC3mbIdiwmpkSM5FSzfEYP6YLUKQ/nr Xvk/Vx/DrgkYy5CRcVK1Cc5+/3n1Hw1gBTr9TV9iGZhLV4oPW24m9X2A2ub/H203O0 gwp3uLBAAlA4CrnB9c6daNEvPbYlG7QbLWGrPtRMl3cK/MMp/5g/sRAPdcw+gheU97 y4pzWxdGGBSxg== Received: from [192.168.1.26] (pv50p00im-dlb-asmtp-mailmevip.me.com [17.56.9.10]) by pv50p00im-ztdg10011901.me.com (Postfix) with ESMTPSA id BA8863A0262; Wed, 11 Dec 2024 00:09:54 +0000 (UTC) From: Zijun Hu Date: Wed, 11 Dec 2024 08:08:07 +0800 Subject: [PATCH v4 05/11] driver core: Simplify API device_find_child_by_name() implementation MIME-Version: 1.0 Message-Id: <20241211-const_dfc_done-v4-5-583cc60329df@quicinc.com> References: <20241211-const_dfc_done-v4-0-583cc60329df@quicinc.com> In-Reply-To: <20241211-const_dfc_done-v4-0-583cc60329df@quicinc.com> To: Greg Kroah-Hartman Cc: Linus Walleij , Bartosz Golaszewski , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , James Bottomley , =?utf-8?q?Thomas_?= =?utf-8?q?Wei=C3=9Fschuh?= , Zijun Hu , linux-kernel@vger.kernel.org, nvdimm@lists.linux.dev, linux-sound@vger.kernel.org, sparclinux@vger.kernel.org, linux-block@vger.kernel.org, linux-cxl@vger.kernel.org, linux1394-devel@lists.sourceforge.net, arm-scmi@vger.kernel.org, linux-efi@vger.kernel.org, linux-gpio@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-hwmon@vger.kernel.org, linux-media@vger.kernel.org, linux-pwm@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-scsi@vger.kernel.org, linux-usb@vger.kernel.org, linux-serial@vger.kernel.org, netdev@vger.kernel.org, Zijun Hu X-Mailer: b4 0.14.2 X-Proofpoint-ORIG-GUID: hNG3xePdNfNOzHg74akd9WJMrpqTEJ-e X-Proofpoint-GUID: hNG3xePdNfNOzHg74akd9WJMrpqTEJ-e X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2024-12-10_13,2024-12-10_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 bulkscore=0 phishscore=0 suspectscore=0 mlxscore=0 spamscore=0 mlxlogscore=885 clxscore=1015 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2308100000 definitions=main-2412100174 X-Apple-Remote-Links: v=1;h=KCk=;charset=UTF-8 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Zijun Hu Simplify device_find_child_by_name() implementation by both existing API device_find_child() and device_match_name(). Signed-off-by: Zijun Hu Reviewed-by: Jonathan Cameron --- drivers/base/core.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) diff --git a/drivers/base/core.c b/drivers/base/core.c index bc3b523a4a6366080c3c9fd190e54c7fd13c8ded..8116bc8dd6e9eba0653ca686a90c7008de9e2840 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -4110,18 +4110,7 @@ EXPORT_SYMBOL_GPL(device_find_child); struct device *device_find_child_by_name(struct device *parent, const char *name) { - struct klist_iter i; - struct device *child; - - if (!parent) - return NULL; - - klist_iter_init(&parent->p->klist_children, &i); - while ((child = next_device(&i))) - if (sysfs_streq(dev_name(child), name) && get_device(child)) - break; - klist_iter_exit(&i); - return child; + return device_find_child(parent, name, device_match_name); } EXPORT_SYMBOL_GPL(device_find_child_by_name);