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-rw-r--r--fs/fs_parser.c33
1 files changed, 18 insertions, 15 deletions
diff --git a/fs/fs_parser.c b/fs/fs_parser.c
index d032ac4a758d..065ce6c22587 100644
--- a/fs/fs_parser.c
+++ b/fs/fs_parser.c
@@ -20,27 +20,31 @@ static const struct constant_table bool_names[] = {
{ "no", false },
{ "true", true },
{ "yes", true },
+ { },
};
+static const struct constant_table *
+__lookup_constant(const struct constant_table *tbl, const char *name)
+{
+ for ( ; tbl->name; tbl++)
+ if (strcmp(name, tbl->name) == 0)
+ return tbl;
+ return NULL;
+}
+
/**
* lookup_constant - Look up a constant by name in an ordered table
* @tbl: The table of constants to search.
- * @tbl_size: The size of the table.
* @name: The name to look up.
* @not_found: The value to return if the name is not found.
*/
-int __lookup_constant(const struct constant_table *tbl, size_t tbl_size,
- const char *name, int not_found)
+int lookup_constant(const struct constant_table *tbl, const char *name, int not_found)
{
- unsigned int i;
+ const struct constant_table *p = __lookup_constant(tbl, name);
- for (i = 0; i < tbl_size; i++)
- if (strcmp(name, tbl[i].name) == 0)
- return tbl[i].value;
-
- return not_found;
+ return p ? p->value : not_found;
}
-EXPORT_SYMBOL(__lookup_constant);
+EXPORT_SYMBOL(lookup_constant);
static const struct fs_parameter_spec *fs_lookup_key(
const struct fs_parameter_description *desc,
@@ -189,11 +193,10 @@ int fs_parse(struct fs_context *fc,
goto maybe_okay;
case fs_param_is_enum:
- for (e = p->data; e->name; e++) {
- if (strcmp(e->name, param->string) == 0) {
- result->uint_32 = e->value;
- goto okay;
- }
+ e = __lookup_constant(p->data, param->string);
+ if (e) {
+ result->uint_32 = e->value;
+ goto okay;
}
goto bad_value;