../net/core/xdp.c:899:17: warning: symbol 'bpf_xdp_metadata_rx_timestamp' was not declared. Should it be static?
../net/core/xdp.c:921:17: warning: symbol 'bpf_xdp_metadata_rx_hash' was not declared. Should it be static?
../net/core/xdp.c:954:17: warning: symbol 'bpf_xdp_metadata_rx_vlan_tag' was not declared. Should it be static?
../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static?