diff options
| author |   Saravana Kannan <saravanak@google.com> | 2020-02-21 00:05:09 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-04 13:46:03 +0100 |
| commit | ac338acf514e7b578fa9e3742ec2c292323b4c1a (patch) | |
| tree | fcfb2d4b490a901bf76163edfb98ebb6efe73a00 /include/linux | |
| parent | driver core: Call sync_state() even if supplier has no consumers (diff) | |
| download | wireguard-linux-ac338acf514e7b578fa9e3742ec2c292323b4c1a.tar.xz wireguard-linux-ac338acf514e7b578fa9e3742ec2c292323b4c1a.zip | |
driver core: Add dev_has_sync_state()
Add an API to check if a device has sync_state support in its driver or
bus.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20200221080510.197337-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/device.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 0cd7c647c16c..fa04dfd22bbc 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -798,6 +798,17 @@ static inline struct device_node *dev_of_node(struct device *dev) return dev->of_node; } +static inline bool dev_has_sync_state(struct device *dev) +{ + if (!dev) + return false; + if (dev->driver && dev->driver->sync_state) + return true; + if (dev->bus && dev->bus->sync_state) + return true; + return false; +} + /* * High level routines for use by the bus drivers */ |