module: fix build warning with !CONFIG_KALLSYMS

This patch fixed the warning:

  CC      kernel/module.o
  /home/wangcong/Projects/linux-2.6/kernel/module.c:332: warning:
‘lookup_symbol’ defined but not used

Signed-off-by: WANG Cong <wangcong@zeuux.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/kernel/module.c b/kernel/module.c
index d8b5605..d861bd5 100644 (file)
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -325,18 +325,6 @@ static unsigned long find_symbol(const char *name,
        return -ENOENT;
 }
 
-/* lookup symbol in given range of kernel_symbols */
-static const struct kernel_symbol *lookup_symbol(const char *name,
-       const struct kernel_symbol *start,
-       const struct kernel_symbol *stop)
-{
-       const struct kernel_symbol *ks = start;
-       for (; ks < stop; ks++)
-               if (strcmp(ks->name, name) == 0)
-                       return ks;
-       return NULL;
-}
-
 /* Search for module by name: must hold module_mutex. */
 static struct module *find_module(const char *name)
 {
@@ -1703,6 +1691,19 @@ static void setup_modinfo(struct module *mod, Elf_Shdr *sechdrs,
 }
 
 #ifdef CONFIG_KALLSYMS
+
+/* lookup symbol in given range of kernel_symbols */
+static const struct kernel_symbol *lookup_symbol(const char *name,
+       const struct kernel_symbol *start,
+       const struct kernel_symbol *stop)
+{
+       const struct kernel_symbol *ks = start;
+       for (; ks < stop; ks++)
+               if (strcmp(ks->name, name) == 0)
+                       return ks;
+       return NULL;
+}
+
 static int is_exported(const char *name, const struct module *mod)
 {
        if (!mod && lookup_symbol(name, __start___ksymtab, __stop___ksymtab))