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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-03-16 23:49:03 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-03-16 23:49:03 +0100 |
| commit | ce793486e23e0162a732c605189c8028e0910e86 (patch) | |
| tree | bc36cffe7005afecc2f9db436dedd107773108b0 /include/acpi | |
| parent | 06e5801b8cb3fc057d88cb4dc03c0b64b2744cda (diff) | |
| download | lwn-ce793486e23e0162a732c605189c8028e0910e86.tar.gz lwn-ce793486e23e0162a732c605189c8028e0910e86.zip | |
driver core / ACPI: Represent ACPI companions using fwnode_handle
Now that we have struct fwnode_handle, we can use that to point to
ACPI companions from struct device objects instead of pointing to
struct acpi_device directly.
There are two benefits from that. First, the somewhat ugly and
hackish struct acpi_dev_node can be dropped and, second, the same
struct fwnode_handle pointer can be used in the future to point
to other (non-ACPI) firmware device node types.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/acpi_bus.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 61e32ec1fc4d..dae2a16fe93f 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -386,7 +386,8 @@ static inline bool is_acpi_node(struct fwnode_handle *fwnode) static inline struct acpi_device *acpi_node(struct fwnode_handle *fwnode) { - return fwnode ? container_of(fwnode, struct acpi_device, fwnode) : NULL; + return is_acpi_node(fwnode) ? + container_of(fwnode, struct acpi_device, fwnode) : NULL; } static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) |