diff --git a/package/avm/ipw2100/kernel-2.6.12.patch b/package/avm/ipw2100/kernel-2.6.12.patch
new file mode 100644
index 000000000..de5ebe88e
--- /dev/null
+++ b/package/avm/ipw2100/kernel-2.6.12.patch
@@ -0,0 +1,16 @@
+diff -ruN ipw2100-1.1.0/ieee80211.h ipw2100-1.1.0-new/ieee80211.h
+--- ipw2100-1.1.0/ieee80211.h	2005-03-14 17:54:24.000000000 +0100
++++ ipw2100-1.1.0-new/ieee80211.h	2005-06-24 16:12:35.000000000 +0200
+@@ -643,10 +643,12 @@
+ #define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5]
+ 
+ 
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,12)
+ extern inline int is_multicast_ether_addr(const u8 *addr)
+ {
+ 	return ((addr[0] != 0xff) && (0x01 & addr[0]));
+ }
++#endif
+ 
+ extern inline int is_broadcast_ether_addr(const u8 *addr)
+ {