hamachi: fix non-constant printk warnings

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/hamachi.c b/drivers/net/hamachi.c
index 455641f..310ee03 100644
--- a/drivers/net/hamachi.c
+++ b/drivers/net/hamachi.c
@@ -171,7 +171,7 @@
 #include <asm/unaligned.h>
 #include <asm/cache.h>
 
-static char version[] __devinitdata =
+static const char version[] __devinitconst =
 KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE "  Written by Donald Becker\n"
 KERN_INFO "   Some modifications by Eric kasten <kasten@nscl.msu.edu>\n"
 KERN_INFO "   Further modifications by Keith Underwood <keithu@parl.clemson.edu>\n";