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From: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
To: Rob Herring <robherring2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Grant Likely
	<grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	Olof Johansson <olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org>,
	"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Subject: [PATCH 1/2] device: Add dev_of_node() accessor
Date: Mon, 16 Feb 2015 14:59:08 +1100	[thread overview]
Message-ID: <1424059148.21410.37.camel@kernel.crashing.org> (raw)

Suggested by Arnd Bergmann, this gives a practical accessor for
the of_node field of struct device while instructing the compiler
that it will be NULL if CONFIG_OF is not set.

Signed-off-by: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
---

This is what we discussed back in November and I had forgotten
to finish :)

 include/linux/device.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/linux/device.h b/include/linux/device.h
index fb50673..08128288 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -916,6 +916,13 @@ static inline void device_lock_assert(struct device *dev)
 	lockdep_assert_held(&dev->mutex);
 }
 
+static inline struct device_node *dev_of_node(struct device *dev)
+{
+	if (!IS_ENABLED(CONFIG_OF))
+		return NULL;
+	return dev->of_node;
+}
+
 void driver_init(void);
 
 /*



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WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Rob Herring <robherring2@gmail.com>
Cc: Grant Likely <grant.likely@linaro.org>,
	Olof Johansson <olof@lixom.net>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH 1/2] device: Add dev_of_node() accessor
Date: Mon, 16 Feb 2015 14:59:08 +1100	[thread overview]
Message-ID: <1424059148.21410.37.camel@kernel.crashing.org> (raw)

Suggested by Arnd Bergmann, this gives a practical accessor for
the of_node field of struct device while instructing the compiler
that it will be NULL if CONFIG_OF is not set.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

This is what we discussed back in November and I had forgotten
to finish :)

 include/linux/device.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/linux/device.h b/include/linux/device.h
index fb50673..08128288 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -916,6 +916,13 @@ static inline void device_lock_assert(struct device *dev)
 	lockdep_assert_held(&dev->mutex);
 }
 
+static inline struct device_node *dev_of_node(struct device *dev)
+{
+	if (!IS_ENABLED(CONFIG_OF))
+		return NULL;
+	return dev->of_node;
+}
+
 void driver_init(void);
 
 /*




             reply	other threads:[~2015-02-16  3:59 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-16  3:59 Benjamin Herrenschmidt [this message]
2015-02-16  3:59 ` [PATCH 1/2] device: Add dev_of_node() accessor Benjamin Herrenschmidt
2015-02-18  1:03 ` Rob Herring

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