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Diffstat (limited to 'lib')
-rw-r--r--lib/bootconfig.c33
1 files changed, 23 insertions, 10 deletions
diff --git a/lib/bootconfig.c b/lib/bootconfig.c
index 912ef4921398..a5f701161f6b 100644
--- a/lib/bootconfig.c
+++ b/lib/bootconfig.c
@@ -329,22 +329,30 @@ const char * __init xbc_node_find_next_key_value(struct xbc_node *root,
/* XBC parse and tree build */
+static int __init xbc_init_node(struct xbc_node *node, char *data, u32 flag)
+{
+ unsigned long offset = data - xbc_data;
+
+ if (WARN_ON(offset >= XBC_DATA_MAX))
+ return -EINVAL;
+
+ node->data = (u16)offset | flag;
+ node->child = 0;
+ node->next = 0;
+
+ return 0;
+}
+
static struct xbc_node * __init xbc_add_node(char *data, u32 flag)
{
struct xbc_node *node;
- unsigned long offset;
if (xbc_node_num == XBC_NODE_MAX)
return NULL;
node = &xbc_nodes[xbc_node_num++];
- offset = data - xbc_data;
- node->data = (u16)offset;
- if (WARN_ON(offset >= XBC_DATA_MAX))
+ if (xbc_init_node(node, data, flag) < 0)
return NULL;
- node->data |= flag;
- node->child = 0;
- node->next = 0;
return node;
}
@@ -603,7 +611,9 @@ static int __init xbc_parse_kv(char **k, char *v, int op)
if (c < 0)
return c;
- if (!xbc_add_sibling(v, XBC_VALUE))
+ if (op == ':' && child) {
+ xbc_init_node(child, v, XBC_VALUE);
+ } else if (!xbc_add_sibling(v, XBC_VALUE))
return -ENOMEM;
if (c == ',') { /* Array */
@@ -787,7 +797,7 @@ int __init xbc_init(char *buf, const char **emsg, int *epos)
p = buf;
do {
- q = strpbrk(p, "{}=+;\n#");
+ q = strpbrk(p, "{}=+;:\n#");
if (!q) {
p = skip_spaces(p);
if (*p != '\0')
@@ -798,9 +808,12 @@ int __init xbc_init(char *buf, const char **emsg, int *epos)
c = *q;
*q++ = '\0';
switch (c) {
+ case ':':
case '+':
if (*q++ != '=') {
- ret = xbc_parse_error("Wrong '+' operator",
+ ret = xbc_parse_error(c == '+' ?
+ "Wrong '+' operator" :
+ "Wrong ':' operator",
q - 2);
break;
}