summaryrefslogtreecommitdiff
path: root/lib/bootconfig.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/bootconfig.c')
-rw-r--r--lib/bootconfig.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/bootconfig.c b/lib/bootconfig.c
index 66b02fddfea8..b088fe5c0001 100644
--- a/lib/bootconfig.c
+++ b/lib/bootconfig.c
@@ -34,6 +34,27 @@ static int xbc_err_pos __initdata;
static int open_brace[XBC_DEPTH_MAX] __initdata;
static int brace_index __initdata;
+/**
+ * xbc_get_info() - Get the information of loaded boot config
+ * node_size: A pointer to store the number of nodes.
+ * data_size: A pointer to store the size of bootconfig data.
+ *
+ * Get the number of used nodes in @node_size if it is not NULL,
+ * and the size of bootconfig data in @data_size if it is not NULL.
+ * Return 0 if the boot config is initialized, or return -ENODEV.
+ */
+int __init xbc_get_info(int *node_size, size_t *data_size)
+{
+ if (!xbc_data)
+ return -ENODEV;
+
+ if (node_size)
+ *node_size = xbc_node_num;
+ if (data_size)
+ *data_size = xbc_data_size;
+ return 0;
+}
+
static int __init xbc_parse_error(const char *msg, const char *p)
{
xbc_err_msg = msg;