drivers/net/aironet4500_core.c in 2.4.0-test10 has these lines char SSID[33]; MODULE_PARM(SSID,"1-4c31"); The MODULE_PARM says that SSID is 1 to 4 occurrences, each being a string of up to 31 bytes, inculding trailing nul. But SSID is only defined as a single occurrence of 33 bytes. It should probably be MODULE_PARM(SSID,"c33"); - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org