init/version.c: define version_string only if CONFIG_KALLSYMS is not defined

int Version_* is only used with ksymoops, which is only needed (according
to README and Documentation/Changes) if CONFIG_KALLSYMS is NOT defined.
Therefore this patch defines version_string only if CONFIG_KALLSYMS is not
defined.

Signed-off-by: Daniel Guilak <daniel@danielguilak.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/init/version.c b/init/version.c
index 041fd822ce24..52a8b98642b8 100644
--- a/init/version.c
+++ b/init/version.c
@@ -13,11 +13,13 @@
 #include <linux/utsrelease.h>
 #include <linux/version.h>
 
+#ifndef CONFIG_KALLSYMS
 #define version(a) Version_ ## a
 #define version_string(a) version(a)
 
 extern int version_string(LINUX_VERSION_CODE);
 int version_string(LINUX_VERSION_CODE);
+#endif
 
 struct uts_namespace init_uts_ns = {
         .kref = {