kconfig: remove sym_expand_string_value()

There is no more caller of sym_expand_string_value().

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Kees Cook <keescook@chromium.org>

2 files changed, 0 insertions, 54 deletions

diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h
index 9f465fe1ca85..c46929fab7d9 100644
--- a/scripts/kconfig/lkc_proto.h
+++ b/scripts/kconfig/lkc_proto.h
@@ -31,7 +31,6 @@ extern struct symbol * symbol_hash[SYMBOL_HASHSIZE];
 
 struct symbol * sym_lookup(const char *name, int flags);
 struct symbol * sym_find(const char *name);
-char *sym_expand_string_value(const char *in);
 const char * sym_escape_string_value(const char *in);
 struct symbol ** sym_re_search(const char *pattern);
 const char * sym_type_name(enum symbol_type type);
diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index 2460648a581a..7c9a88e91cfa 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -879,59 +879,6 @@ struct symbol *sym_find(const char *name)
         return symbol;
 }
 
-/*
- * Expand symbol's names embedded in the string given in argument. Symbols'
- * name to be expanded shall be prefixed by a '$'. Unknown symbol expands to
- * the empty string.
- */
-char *sym_expand_string_value(const char *in)
-{
-        const char *src;
-        char *res;
-        size_t reslen;
-
-        /*
-         * Note: 'in' might come from a token that's about to be
-         * freed, so make sure to always allocate a new string
-         */
-        reslen = strlen(in) + 1;
-        res = xmalloc(reslen);
-        res[0] = '\0';
-
-        while ((src = strchr(in, '$'))) {
-                char *p, name[SYMBOL_MAXLENGTH];
-                const char *symval = "";
-                struct symbol *sym;
-                size_t newlen;
-
-                strncat(res, in, src - in);
-                src++;
-
-                p = name;
-                while (isalnum(*src) || *src == '_')
-                        *p++ = *src++;
-                *p = '\0';
-
-                sym = sym_find(name);
-                if (sym != NULL) {
-                        sym_calc_value(sym);
-                        symval = sym_get_string_value(sym);
-                }
-
-                newlen = strlen(res) + strlen(symval) + strlen(src) + 1;
-                if (newlen > reslen) {
-                        reslen = newlen;
-                        res = xrealloc(res, reslen);
-                }
-
-                strcat(res, symval);
-                in = src;
-        }
-        strcat(res, in);
-
-        return res;
-}
-
 const char *sym_escape_string_value(const char *in)
 {
         const char *p;