Commit 1edb6e03 authored Sep 07, 2018 by Anders Roxell Committed by Alexei Starovoitov Sep 11, 2018

net/core/filter: fix unused-variable warning



Building with CONFIG_INET=n will show the warning below:
net/core/filter.c: In function ‘____bpf_getsockopt’:
net/core/filter.c:4048:19: warning: unused variable ‘tp’ [-Wunused-variable]
  struct tcp_sock *tp;
                   ^~
net/core/filter.c:4046:31: warning: unused variable ‘icsk’ [-Wunused-variable]
  struct inet_connection_sock *icsk;
                               ^~~~
Move the variable declarations inside the {} block where they are used.

Fixes: 1e215300 ("bpf: add TCP_SAVE_SYN/TCP_SAVED_SYN options for bpf_(set|get)sockopt")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

parent 9d0b3c1f

net/core/filter.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -4051,14 +4051,15 @@ static const struct bpf_func_proto bpf_setsockopt_proto = {
		BPF_CALL_5(bpf_getsockopt, struct bpf_sock_ops_kern *, bpf_sock,
		int, level, int, optname, char *, optval, int, optlen)
		{
		struct inet_connection_sock *icsk;
		struct sock *sk = bpf_sock->sk;
		struct tcp_sock *tp;

		if (!sk_fullsock(sk))
		goto err_clear;
		#ifdef CONFIG_INET
		if (level == SOL_TCP && sk->sk_prot->getsockopt == tcp_getsockopt) {
		struct inet_connection_sock *icsk;
		struct tcp_sock *tp;

		switch (optname) {
		case TCP_CONGESTION:
		icsk = inet_csk(sk);