../kernel/bpf/crypto.c:145:35: warning: symbol 'bpf_crypto_ctx_create' was not declared. Should it be static? ../kernel/bpf/crypto.c:242:35: warning: symbol 'bpf_crypto_ctx_acquire' was not declared. Should it be static? ../kernel/bpf/crypto.c:258:18: warning: symbol 'bpf_crypto_ctx_release' was not declared. Should it be static? ../kernel/bpf/crypto.c:313:17: warning: symbol 'bpf_crypto_decrypt' was not declared. Should it be static? ../kernel/bpf/crypto.c:334:17: warning: symbol 'bpf_crypto_encrypt' 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? ../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' 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?