linux-kernel - [PATCH v2 2/2] driver core: platform: Drop of_device_node

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Message-Id: <20210211232745.1498137-3-robh@kernel.org>
Date:   Thu, 11 Feb 2021 17:27:45 -0600
From:   Rob Herring <robh@...nel.org>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        devicetree@...r.kernel.org
Cc:     Paul Mackerras <paulus@...ba.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Patrice Chotard <patrice.chotard@...com>,
        Felipe Balbi <balbi@...nel.org>,
        Julia Lawall <Julia.Lawall@...ia.fr>,
        Gilles Muller <Gilles.Muller@...ia.fr>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        Michal Marek <michal.lkml@...kovi.net>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-usb@...r.kernel.org, cocci@...teme.lip6.fr,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: [PATCH v2 2/2] driver core: platform: Drop of_device_node_put() wrapper

of_device_node_put() is just a wrapper for of_node_put(). The platform
driver core is already polluted with of_node pointers and the only 'get'
already uses of_node_get() (though typically the get would happen in
of_device_alloc()).

Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: Frank Rowand <frowand.list@...il.com>
Signed-off-by: Rob Herring <robh@...nel.org>
---
v2:
 - Fix build
---
 drivers/base/platform.c   | 2 +-
 include/linux/of_device.h | 7 -------
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 95fd1549f87d..9d5171e5f967 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -571,7 +571,7 @@ static void platform_device_release(struct device *dev)
 	struct platform_object *pa = container_of(dev, struct platform_object,
 						  pdev.dev);
 
-	of_device_node_put(&pa->pdev.dev);
+	of_node_put(pa->pdev.dev.of_node);
 	kfree(pa->pdev.dev.platform_data);
 	kfree(pa->pdev.mfd_cell);
 	kfree(pa->pdev.resource);
diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index d7a407dfeecb..1d7992a02e36 100644
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h
@@ -38,11 +38,6 @@ extern int of_device_request_module(struct device *dev);
 extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
 extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env);
 
-static inline void of_device_node_put(struct device *dev)
-{
-	of_node_put(dev->of_node);
-}
-
 static inline struct device_node *of_cpu_device_node_get(int cpu)
 {
 	struct device *cpu_dev;
@@ -94,8 +89,6 @@ static inline int of_device_uevent_modalias(struct device *dev,
 	return -ENODEV;
 }
 
-static inline void of_device_node_put(struct device *dev) { }
-
 static inline const struct of_device_id *of_match_device(
 		const struct of_device_id *matches, const struct device *dev)
 {
-- 
2.27.0