../net/core/dev.c:5730:5: warning: symbol 'br_fdb_test_addr_hook' was not declared. Should it be static? ../net/core/dev.c:4158:17: warning: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block ../net/core/dev.c:5688:17: 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:5728:5: warning: symbol 'br_fdb_test_addr_hook' was not declared. Should it be static? ../net/core/dev.c:4156:17: warning: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block ../net/core/dev.c:5686:17: 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?