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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 BC342E7718D for ; Mon, 23 Dec 2024 20:46:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:CC:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=kbCEIeUR9RUTYHs9s9Jdv6s+9/pQzaDOADlOSft9KNo=; b=IV5aHOfMr9WBpj3L2wmhs03fXd kEFVvTd401WH4jEUcY3V0QYzf/ktcKkMXgGmvreBPcEn3ZzVll7vTlMWWYJIgd6jR19eudOFE4D6M o/vfTOBs6UE65UX0bYwK4OBd2mY1VZ+e5tSPpVOfRY0WAi6wJjMkKTDrLfRvK0BW+uDw80isE/XHD tmwyNKHs5DeSrOsuiVd7Vb+HDWyW7AIg3UnyP41L7KTq932VghES2MRnRBuaKZpf9+uy1H7WNi3M/ 5dR+m0o9t+23claXA9WfkcpRLhbH35ydee4l6DW/jNvJBBZKmhswczbQpuSZniNSL7thjjpidPb36 zMKBjS+A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tPpJc-0000000AipW-41Cy; Mon, 23 Dec 2024 20:46:12 +0000 Received: from frasgout.his.huawei.com ([185.176.79.56]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tPpJa-0000000Aioe-2xdY for linux-mediatek@lists.infradead.org; Mon, 23 Dec 2024 20:46:12 +0000 Received: from mail.maildlp.com (unknown [172.18.186.216]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4YH95q4XLzz6K6mm; Tue, 24 Dec 2024 04:45:51 +0800 (CST) Received: from frapeml500008.china.huawei.com (unknown [7.182.85.71]) by mail.maildlp.com (Postfix) with ESMTPS id 228F4140A70; Tue, 24 Dec 2024 04:46:09 +0800 (CST) Received: from localhost (10.47.75.118) by frapeml500008.china.huawei.com (7.182.85.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Mon, 23 Dec 2024 21:46:07 +0100 Date: Mon, 23 Dec 2024 20:46:05 +0000 From: Jonathan Cameron To: Zijun Hu CC: Greg Kroah-Hartman , Linus Walleij , Bartosz Golaszewski , Uwe =?ISO-8859-1?Q?Kleine-K=F6nig?= , James Bottomley , Thomas =?ISO-8859-1?Q?Wei=DFschu?= =?ISO-8859-1?Q?h?= , , , , , , , , , , , , , , , , , , , , , Zijun Hu Subject: Re: [PATCH v4 09/11] driver core: Introduce an device matching API device_match_type() Message-ID: <20241223204605.000067e0@huawei.com> In-Reply-To: <20241211-const_dfc_done-v4-9-583cc60329df@quicinc.com> References: <20241211-const_dfc_done-v4-0-583cc60329df@quicinc.com> <20241211-const_dfc_done-v4-9-583cc60329df@quicinc.com> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.47.75.118] X-ClientProxiedBy: lhrpeml100001.china.huawei.com (7.191.160.183) To frapeml500008.china.huawei.com (7.182.85.71) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241223_124611_051650_DF769E45 X-CRM114-Status: GOOD ( 14.71 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Wed, 11 Dec 2024 08:08:11 +0800 Zijun Hu wrote: > From: Zijun Hu > > Introduce device_match_type() for purposes below: > > - Test if a device matches with a specified device type. > - As argument of various device finding APIs to find a device with > specified type. > > device_find_child() will use it to simplify operations later. > > Signed-off-by: Zijun Hu Seems useful enough to have a generic helper. Reviewed-by: Jonathan Cameron > --- > drivers/base/core.c | 6 ++++++ > include/linux/device/bus.h | 1 + > 2 files changed, 7 insertions(+) > > diff --git a/drivers/base/core.c b/drivers/base/core.c > index 289f2dafa8f3831931d0f316d66ee12c2cb8a2e1..8bdbc9e657e832a063542391426f570ccb5c18b9 100644 > --- a/drivers/base/core.c > +++ b/drivers/base/core.c > @@ -5228,6 +5228,12 @@ int device_match_name(struct device *dev, const void *name) > } > EXPORT_SYMBOL_GPL(device_match_name); > > +int device_match_type(struct device *dev, const void *type) > +{ > + return dev->type == type; > +} > +EXPORT_SYMBOL_GPL(device_match_type); > + > int device_match_of_node(struct device *dev, const void *np) > { > return dev->of_node == np; > diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h > index cdc4757217f9bb4b36b5c3b8a48bab45737e44c5..bc3fd74bb763e6d2d862859bd2ec3f0d443f2d7a 100644 > --- a/include/linux/device/bus.h > +++ b/include/linux/device/bus.h > @@ -131,6 +131,7 @@ typedef int (*device_match_t)(struct device *dev, const void *data); > > /* Generic device matching functions that all busses can use to match with */ > int device_match_name(struct device *dev, const void *name); > +int device_match_type(struct device *dev, const void *type); > int device_match_of_node(struct device *dev, const void *np); > int device_match_fwnode(struct device *dev, const void *fwnode); > int device_match_devt(struct device *dev, const void *pdevt); >