CC net/ipv4/tcp_brutal.o
/home/runner/work/linux-self-use-deb/linux-self-use-deb/linux-6.10.1/net/ipv4/tcp_brutal.c:38:5: warning: no previous prototype for function 'tcp_sock_get_sec' [-Wmissing-prototypes]
38 | u64 tcp_sock_get_sec(const struct tcp_sock *tp)
| ^
/home/runner/work/linux-self-use-deb/linux-self-use-deb/linux-6.10.1/net/ipv4/tcp_brutal.c:38:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
38 | u64 tcp_sock_get_sec(const struct tcp_sock *tp)
| ^
| static
/home/runner/work/linux-self-use-deb/linux-self-use-deb/linux-6.10.1/net/ipv4/tcp_brutal.c:280:21: error: incompatible function pointer types initializing 'void (*)(struct sock *, u32, int, const struct rate_sample *)' (aka 'void (*)(struct sock *, unsigned int, int, const struct rate_sample *)') with an expression of type 'void (struct sock *, const struct rate_sample *)' [-Wincompatible-function-pointer-types]
280 | .cong_control = brutal_main,
| ^~~~~~~~~~~
1 warning and 1 error generated.