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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-03-16 23:49:03 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-03-16 23:49:03 +0100
commitce793486e23e0162a732c605189c8028e0910e86 (patch)
treebc36cffe7005afecc2f9db436dedd107773108b0 /include/acpi
parent06e5801b8cb3fc057d88cb4dc03c0b64b2744cda (diff)
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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.h3
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)