../net/core/dev.c:5668:5: warning: symbol 'br_fdb_test_addr_hook' was not declared. Should it be static? ../net/core/dev.c:4126:17: warning: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block ../net/core/dev.c:5626:17: warning: context imbalance in 'net_tx_action' - different lock contexts for basic block ../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static? ../net/core/dev.c:5670:5: warning: symbol 'br_fdb_test_addr_hook' was not declared. Should it be static? ../net/core/dev.c:4126:17: warning: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block ../net/core/dev.c:5628:17: warning: context imbalance in 'net_tx_action' - different lock contexts for basic block ../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static?