diff options
Diffstat (limited to 'drivers/base/property.c')
-rw-r--r-- | drivers/base/property.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/base/property.c b/drivers/base/property.c index 8f8e2a6816bc..6e39db62446d 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -630,6 +630,34 @@ const char *fwnode_get_name_prefix(const struct fwnode_handle *fwnode) } /** + * fwnode_name_eq - Return true if node name is equal + * @fwnode: The firmware node + * @name: The name to which to compare the node name + * + * Compare the name provided as an argument to the name of the node, stopping + * the comparison at either NUL or '@' character, whichever comes first. This + * function is generally used for comparing node names while ignoring the + * possible unit address of the node. + * + * Return: true if the node name matches with the name provided in the @name + * argument, false otherwise. + */ +bool fwnode_name_eq(const struct fwnode_handle *fwnode, const char *name) +{ + const char *node_name; + ptrdiff_t len; + + node_name = fwnode_get_name(fwnode); + if (!node_name) + return false; + + len = strchrnul(node_name, '@') - node_name; + + return str_has_prefix(node_name, name) == len; +} +EXPORT_SYMBOL_GPL(fwnode_name_eq); + +/** * fwnode_get_parent - Return parent firwmare node * @fwnode: Firmware whose parent is retrieved * |