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ACPI: property: use cached name in acpi_fwnode_get_named_child_node()

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There is no need to re-evaluate the object name.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Heikki Krogerus 2020-06-09 16:22:39 +03:00 committed by Rafael J. Wysocki
parent 48778464bb
commit cbdd865a94
1 changed files with 2 additions and 12 deletions
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14
drivers/acpi/property.c
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@ -606,13 +606,7 @@ static struct fwnode_handle *
acpi_fwnode_get_named_child_node(const struct fwnode_handle *fwnode,
const char *childname)
{
char name[ACPI_PATH_SEGMENT_LENGTH];
struct fwnode_handle *child;
struct acpi_buffer path;
acpi_status status;
path.length = sizeof(name);
path.pointer = name;
fwnode_for_each_child_node(fwnode, child) {
if (is_acpi_data_node(child)) {
@ -621,12 +615,8 @@ acpi_fwnode_get_named_child_node(const struct fwnode_handle *fwnode,
continue;
}
status = acpi_get_name(ACPI_HANDLE_FWNODE(child),
ACPI_SINGLE_NAME, &path);
if (ACPI_FAILURE(status))
break;
if (!strncmp(name, childname, ACPI_NAMESEG_SIZE))
if (!strncmp(acpi_device_bid(to_acpi_device_node(child)),
childname, ACPI_NAMESEG_SIZE))
return child;
}