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authorMasami Hiramatsu <mhiramat@kernel.org>2021-06-02 17:18:58 +0900
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2021-06-10 13:38:25 -0400
commitca24306d83a125df187ad53eddb038fe0cffb8ca (patch)
treeded15cb9027a6d138d2cb83ffa26535504c81ef8 /lib
parentee0a07017ae34f2dbf5775956d8fc3f6d36be985 (diff)
bootconfig: Change array value to use child node
It is not possible to put an array value with subkeys under a key node, because both of subkeys and the array elements are using "next" field of the xbc_node. Thus this changes the array values to use "child" field in the array case. The reason why split this change is to test it easily. Link: https://lkml.kernel.org/r/162262193838.264090.16044473274501498656.stgit@devnote2 Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/bootconfig.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/lib/bootconfig.c b/lib/bootconfig.c
index 9f8c70a98fcf..44dcdcbd746a 100644
--- a/lib/bootconfig.c
+++ b/lib/bootconfig.c
@@ -367,6 +367,14 @@ static inline __init struct xbc_node *xbc_last_sibling(struct xbc_node *node)
return node;
}
+static inline __init struct xbc_node *xbc_last_child(struct xbc_node *node)
+{
+ while (node->child)
+ node = xbc_node_get_child(node);
+
+ return node;
+}
+
static struct xbc_node * __init xbc_add_sibling(char *data, u32 flag)
{
struct xbc_node *sib, *node = xbc_add_node(data, flag);
@@ -517,17 +525,20 @@ static int __init xbc_parse_array(char **__v)
char *next;
int c = 0;
+ if (last_parent->child)
+ last_parent = xbc_node_get_child(last_parent);
+
do {
c = __xbc_parse_value(__v, &next);
if (c < 0)
return c;
- node = xbc_add_sibling(*__v, XBC_VALUE);
+ node = xbc_add_child(*__v, XBC_VALUE);
if (!node)
return -ENOMEM;
*__v = next;
} while (c == ',');
- node->next = 0;
+ node->child = 0;
return c;
}
@@ -615,8 +626,12 @@ static int __init xbc_parse_kv(char **k, char *v, int op)
if (op == ':' && child) {
xbc_init_node(child, v, XBC_VALUE);
- } else if (!xbc_add_sibling(v, XBC_VALUE))
- return -ENOMEM;
+ } else {
+ if (op == '+' && child)
+ last_parent = xbc_last_child(child);
+ if (!xbc_add_sibling(v, XBC_VALUE))
+ return -ENOMEM;
+ }
if (c == ',') { /* Array */
c = xbc_parse_array(&next);