From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 22 Nov 2023 18:42:53 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1r5rFV-004et0-0l for lore@lore.pengutronix.de; Wed, 22 Nov 2023 18:42:53 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1r5rFT-0002xH-UG for lore@pengutronix.de; Wed, 22 Nov 2023 18:42:53 +0100 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: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=pRPsGuDEwYxRVVlz+HhoFpUyXLCUNo260UaHj3AzuM0=; b=mF6XPTMM1AGPs2Pa18h4C6/M1N Du0p8TZTeDXGah1Q5tnIQI9IWMDJAUMc0p0d3Fzhfh8ClWae6RyNMar33fGnQ3JsPf1jrnptZbyFo hg7S1XvPWdq1NNMl7sezlpqK077XZvFm5LzmooH6ugVGjIFito488WfvmKjHuxf+b78GgjjtanSHm 1i6h8bMaXYNtlNOOjXNse62gYKNhnsr1mj5vjlKgIk9l/2JisX7onLoNGqFMIK6StDXIzvNIlStpN Fu9lVRT2aKZQXmAQhpSCebw3bX/rPn/jklKklt5VASSNQ/+mpdG5FuYGsZPE4346NQ9rB2bkUozGX 5EdgiHbg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r5rE9-002hmE-2J; Wed, 22 Nov 2023 17:41:29 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1r5rE2-002hgr-2I for barebox@lists.infradead.org; Wed, 22 Nov 2023 17:41:25 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1r5rE1-0002BW-Ik; Wed, 22 Nov 2023 18:41:21 +0100 Received: from [2a0a:edc0:0:1101:1d::54] (helo=dude05.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1r5rE1-00ArX4-6H; Wed, 22 Nov 2023 18:41:21 +0100 Received: from localhost ([::1] helo=dude05.red.stw.pengutronix.de) by dude05.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1r5r34-001lAy-1p; Wed, 22 Nov 2023 18:30:02 +0100 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Date: Wed, 22 Nov 2023 18:29:51 +0100 Message-Id: <20231122172951.376531-21-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231122172951.376531-1-a.fatoum@pengutronix.de> References: <20231122172951.376531-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231122_094122_750923_6C4ECC19 X-CRM114-Status: GOOD ( 14.09 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.0 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v2 20/20] include: add linux/device.h wrapper around driver.h X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) We don't have device-scoped resource control and in practice memory allocated in device functions is only freed when barebox terminates, so let's accept the fact that most code is leaky and implement devm_ as literal leaky abstractions. While at it provide some macros to translate Linux API into equivalent barebox API. Signed-off-by: Ahmad Fatoum --- v1 -> v2: - unchanged --- include/linux/device.h | 66 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 include/linux/device.h diff --git a/include/linux/device.h b/include/linux/device.h new file mode 100644 index 000000000000..0bd61154ac30 --- /dev/null +++ b/include/linux/device.h @@ -0,0 +1,66 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef LINUX_DRIVER_H_ +#define LINUX_DRIVER_H_ + +#include +#include +#include +#include + +#define device_driver driver + +#define __devm_wrapper(fn, dev, ...) ({ BUG_ON(!dev); fn(__VA_ARGS__); }) + +#define devm_kmalloc(...) __devm_wrapper(kmalloc, __VA_ARGS__) +#define devm_krealloc(...) __devm_wrapper(krealloc, __VA_ARGS__) +#define devm_kvasprintf(...) __devm_wrapper(kvasprintf, __VA_ARGS__) +#define devm_kasprintf(...) __devm_wrapper(kasprintf, __VA_ARGS__) +#define devm_kzalloc(...) __devm_wrapper(kzalloc, __VA_ARGS__) +#define devm_kmalloc_array(...) __devm_wrapper(kmalloc_array, __VA_ARGS__) +#define devm_kcalloc(...) __devm_wrapper(kcalloc, __VA_ARGS__) +#define devm_krealloc_array(...) __devm_wrapper(krealloc_array, __VA_ARGS__) +#define devm_kfree(...) __devm_wrapper(kfree, __VA_ARGS__) +#define devm_kstrdup(...) __devm_wrapper(kstrdup, __VA_ARGS__) +#define devm_kstrdup_const(...) __devm_wrapper(kstrdup_const, __VA_ARGS__) +#define devm_kmemdup(...) __devm_wrapper(kmemdup, __VA_ARGS__) +#define devm_bitmap_zalloc(dev, nbits, gfp) \ + __devm_wrapper(bitmap_zalloc, dev, nbits) + +#define device_register register_device +#define device_unregister unregister_device + +#define driver_register register_driver +#define driver_unregister unregister_driver + +static inline void __iomem *devm_ioremap(struct device *dev, + resource_size_t start, + resource_size_t size) +{ + if (start) + remap_range((void *)start, size, MAP_UNCACHED); + + return IOMEM(start); +} + +static inline int bus_for_each_dev(const struct bus_type *bus, struct device *start, void *data, + int (*fn)(struct device *dev, void *data)) +{ + struct device *dev; + int ret; + + bus_for_each_device(bus, dev) { + if (start) { + if (dev == start) + start = NULL; + continue; + } + + ret = fn(dev, data); + if (ret) + return ret; + } + + return 0; +} + +#endif -- 2.39.2