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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2015-02-17 19:03:41 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-25 14:53:58 +0100 |
| commit | e8a51e1b51ee5730ad3913f3962e3099a5e19359 (patch) | |
| tree | 28b3f15d83a7de01e63084e0bc7111c756482db7 /include/linux/device.h | |
| parent | ef518cc8aa4427043efe21cb2f0799be9cb1d74d (diff) | |
| download | op-kernel-dev-e8a51e1b51ee5730ad3913f3962e3099a5e19359.zip op-kernel-dev-e8a51e1b51ee5730ad3913f3962e3099a5e19359.tar.gz | |
device: Add dev_of_node() accessor
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>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/device.h')
| -rw-r--r-- | include/linux/device.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 0eb8ee2..f3f2c7e 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); /* |
