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authorSakari Ailus <sakari.ailus@linux.intel.com>2017-07-21 14:39:33 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-07-22 01:04:50 +0300
commit8b9d6802583a1ef6977e4b059f9fa848e6882253 (patch)
treee9665212286a632c2d51b55b171b1cf86482e60b /include/acpi
parent01c1da2897918b718de65abb3070ea6985aecbd1 (diff)
downloadlinux-8b9d6802583a1ef6977e4b059f9fa848e6882253.tar.xz
ACPI: Constify acpi_bus helper functions, switch to macros
Constify arguments to is_acpi_node(), is_acpi_device_node(), is_acpi_static_node() and acpi_data_node_match(). Make to_acpi_device_node() and to_acpi_data_node() macros that can cope with const and non-const arguments. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/acpi_bus.h42
1 files changed, 25 insertions, 17 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 91b1e58e5189..89bc2132429d 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -399,43 +399,51 @@ extern const struct fwnode_operations acpi_device_fwnode_ops;
extern const struct fwnode_operations acpi_data_fwnode_ops;
extern const struct fwnode_operations acpi_static_fwnode_ops;
-static inline bool is_acpi_node(struct fwnode_handle *fwnode)
+static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
{
return !IS_ERR_OR_NULL(fwnode) &&
(fwnode->ops == &acpi_device_fwnode_ops
|| fwnode->ops == &acpi_data_fwnode_ops);
}
-static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
+static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode)
{
return !IS_ERR_OR_NULL(fwnode) &&
fwnode->ops == &acpi_device_fwnode_ops;
}
-static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
-{
- return is_acpi_device_node(fwnode) ?
- container_of(fwnode, struct acpi_device, fwnode) : NULL;
-}
-
-static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
+#define to_acpi_device_node(__fwnode) \
+ ({ \
+ typeof(__fwnode) __to_acpi_device_node_fwnode = __fwnode; \
+ \
+ is_acpi_device_node(__to_acpi_device_node_fwnode) ? \
+ container_of(__to_acpi_device_node_fwnode, \
+ struct acpi_device, fwnode) : \
+ NULL; \
+ })
+
+static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode)
{
return !IS_ERR_OR_NULL(fwnode) && fwnode->ops == &acpi_data_fwnode_ops;
}
-static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
-{
- return is_acpi_data_node(fwnode) ?
- container_of(fwnode, struct acpi_data_node, fwnode) : NULL;
-}
-
-static inline bool is_acpi_static_node(struct fwnode_handle *fwnode)
+#define to_acpi_data_node(__fwnode) \
+ ({ \
+ typeof(__fwnode) __to_acpi_data_node_fwnode = __fwnode; \
+ \
+ is_acpi_data_node(__to_acpi_data_node_fwnode) ? \
+ container_of(__to_acpi_data_node_fwnode, \
+ struct acpi_data_node, fwnode) : \
+ NULL; \
+ })
+
+static inline bool is_acpi_static_node(const struct fwnode_handle *fwnode)
{
return !IS_ERR_OR_NULL(fwnode) &&
fwnode->ops == &acpi_static_fwnode_ops;
}
-static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
+static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
const char *name)
{
return is_acpi_data_node(fwnode) ?