../net/core/sock.c:2574:9: warning: context imbalance in 'sk_clone_lock' - different lock contexts for basic block ../net/core/sock.c:4232:13: warning: context imbalance in 'proto_seq_start' - wrong count at exit ../net/core/sock.c:4244:13: warning: context imbalance in 'proto_seq_stop' - wrong count at exit ../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static? ../net/core/sock.c:2574:9: warning: context imbalance in 'sk_clone_lock' - different lock contexts for basic block ../net/core/sock.c:4231:13: warning: context imbalance in 'proto_seq_start' - wrong count at exit ../net/core/sock.c:4243:13: warning: context imbalance in 'proto_seq_stop' - wrong count at exit ../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static?