../kernel/bpf/stream.c: In function ‘bpf_stream_vprintk’:
../kernel/bpf/stream.c:251:9: warning: function ‘bpf_stream_vprintk’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
  251 |         ret = bstr_printf(data.buf, MAX_BPRINTF_BUF, fmt__str, data.bin_args);
      |         ^~~
../kernel/bpf/stream.c:232:17: warning: symbol 'bpf_stream_vprintk' was not declared. Should it be static?
../kernel/bpf/stream.c:260:31: warning: symbol 'bpf_stream_get' was not declared. Should it be static?
../kernel/bpf/stream.c:269:18: warning: symbol 'bpf_stream_free_elem' was not declared. Should it be static?
../kernel/bpf/stream.c:328:36: warning: symbol 'bpf_stream_next_elem' was not declared. Should it be static?
../kernel/bpf/stream.c:354:31: warning: symbol 'bpf_prog_stream_get' was not declared. Should it be static?
../kernel/bpf/stream.c:368:18: warning: symbol 'bpf_prog_stream_put' 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?
../kernel/bpf/stream.c: In function ‘bpf_stream_vprintk’:
../kernel/bpf/stream.c:251:9: warning: function ‘bpf_stream_vprintk’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
  251 |         ret = bstr_printf(data.buf, MAX_BPRINTF_BUF, fmt__str, data.bin_args);
      |         ^~~
../kernel/bpf/stream.c:232:17: warning: symbol 'bpf_stream_vprintk' was not declared. Should it be static?
../kernel/bpf/stream.c:265:31: warning: symbol 'bpf_stream_get' was not declared. Should it be static?
../kernel/bpf/stream.c:274:18: warning: symbol 'bpf_stream_free_elem' was not declared. Should it be static?
../kernel/bpf/stream.c:333:36: warning: symbol 'bpf_stream_next_elem' was not declared. Should it be static?
../kernel/bpf/stream.c:360:31: warning: symbol 'bpf_prog_stream_get' was not declared. Should it be static?
../kernel/bpf/stream.c:374:18: warning: symbol 'bpf_prog_stream_put' 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?