From patchwork Fri Jun 14 17:54:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suzuki K Poulose X-Patchwork-Id: 166883 Delivered-To: patch@linaro.org Received: by 2002:a92:4782:0:0:0:0:0 with SMTP id e2csp2352627ilk; Fri, 14 Jun 2019 10:55:05 -0700 (PDT) X-Google-Smtp-Source: APXvYqxoZEs5uEBH4RYcPDP94bjl5w4qcW2YjEVs9ZI6wdGVJl+qA0FuyiI6DrSGFlFn0Z2cjR4g X-Received: by 2002:a17:90a:8c18:: with SMTP id a24mr11962102pjo.111.1560534905019; Fri, 14 Jun 2019 10:55:05 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1560534905; cv=none; d=google.com; s=arc-20160816; b=uiyg0ZB5CLo3fELZIkjBpdiTgYJdk+AnLGC9qWdezq4JEqBra639/ys0OGGRKp1Fqc ZqwnJX2FZJ60HoY/oM2o6iyiqrErBDXP5B5OAK2A7Kfva2Hg5FI81vFmK/7ArOEIKhdR X7snQ9PMSjvKFyQCRc1qRqgHyNvcsED6I2GtVlsUTIHnHdAqebUyzGp1m4xiiBS2zADt RpF07J6MI1HQaDHPtG5qd5Vy28K6Ks78wrm7Dm48I4pybYD9JQ9D29UmUq+knpQQm4K1 veurF3/WXRvETYW+U0WjMSZDWrAVlgknWE63rAefHFCHKMQY1IAaeQr+KQxYo412pAuR rvLA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from; bh=HHSek7wbTNGzrDs5ANHcDOTs5rK//1HpoCrWGwl4XZU=; b=OSrPa8SDPx/kgOE2qh0JOQgmKUIs4n8ZkX2lCC6A+zqFH1yln3XG4l0pc6ZKc7uCNT 1LA/RL90o3zgNnN8MWJT5OOq8RW9BlPuJO6VrjEi5xNbgR7zuZ+qva5JK9xVVIGJx+ug 7jzDd2Cg52HUh4KYg6yM9d4FH9x8kxkVbYgf3ZeDiqpIZqb3zh/bOiVvLfv0eovmq8zY wSHnkfcNcsfYqmt7hLGIqvDzx3bVb4FmIk/4sTXTWRtyY74UAEBhvb3NPCWXkIy87rYj IpfTu0+ph/YVa5M/RBR20yHZy/F1DwjaTLkHW/Dk98CIYXaVo97byCW+NfCc8ubpxFfH 6KVg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id v11si2767868plg.136.2019.06.14.10.55.04; Fri, 14 Jun 2019 10:55:05 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727441AbfFNRzD (ORCPT + 17 others); Fri, 14 Jun 2019 13:55:03 -0400 Received: from foss.arm.com ([217.140.110.172]:39414 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727397AbfFNRzC (ORCPT ); Fri, 14 Jun 2019 13:55:02 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9ED5DCFC; Fri, 14 Jun 2019 10:55:01 -0700 (PDT) Received: from en101.cambridge.arm.com (en101.cambridge.arm.com [10.1.196.93]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id D092E3F718; Fri, 14 Jun 2019 10:54:59 -0700 (PDT) From: Suzuki K Poulose To: linux-kernel@vger.kernel.org Cc: gregkh@linuxfoundation.org, rafael@kernel.org, suzuki.poulose@arm.com, Alexander Shishkin , Arnd Bergmann , Harald Freudenberger , Heiko Carstens , linux-usb@vger.kernel.org, Oliver Neukum , Sebastian Andrzej Siewior , Tomas Winkler , Ulf Hansson , Joe Perches Subject: [PATCH v2 08/28] drivers: Add generic helper to match by device type Date: Fri, 14 Jun 2019 18:54:03 +0100 Message-Id: <1560534863-15115-9-git-send-email-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1560534863-15115-1-git-send-email-suzuki.poulose@arm.com> References: <1560534863-15115-1-git-send-email-suzuki.poulose@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a helper to match a device by its type. This will be used later for providing wrappers to the device iterators for bus/class/driver. Cc: Alexander Shishkin Cc: Arnd Bergmann Cc: Harald Freudenberger Cc: Heiko Carstens Cc: linux-usb@vger.kernel.org Cc: Oliver Neukum Cc: Sebastian Andrzej Siewior Cc: Tomas Winkler Cc: "Rafael J. Wysocki" Cc: Greg Kroah-Hartman Cc: Ulf Hansson Cc: Joe Perches Signed-off-by: Suzuki K Poulose --- drivers/base/core.c | 6 ++++++ include/linux/device.h | 1 + 2 files changed, 7 insertions(+) -- 2.7.4 diff --git a/drivers/base/core.c b/drivers/base/core.c index efcdb96..b827ca1 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -3340,3 +3340,9 @@ int device_match_fwnode(struct device *dev, const void *fwnode) return dev_fwnode(dev) == fwnode; } EXPORT_SYMBOL_GPL(device_match_fwnode); + +int device_match_devt(struct device *dev, const void *pdevt) +{ + return dev->devt == *(dev_t *)pdevt; +} +EXPORT_SYMBOL_GPL(device_match_devt); diff --git a/include/linux/device.h b/include/linux/device.h index 08aa087..f315692 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -165,6 +165,7 @@ void subsys_dev_iter_exit(struct subsys_dev_iter *iter); 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); int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data, int (*fn)(struct device *dev, void *data));