Re: [PATCH bpf-next 1/2] bpf: tcp: Fix unused function warnings

From: Yonghong Song
Date: Fri Mar 20 2020 - 00:22:48 EST




On 3/19/20 7:34 PM, YueHaibing wrote:
If BPF_STREAM_PARSER is not set, gcc warns:

net/ipv4/tcp_bpf.c:483:12: warning: 'tcp_bpf_sendpage' defined but not used [-Wunused-function]
net/ipv4/tcp_bpf.c:395:12: warning: 'tcp_bpf_sendmsg' defined but not used [-Wunused-function]
net/ipv4/tcp_bpf.c:13:13: warning: 'tcp_bpf_stream_read' defined but not used [-Wunused-function]

Moves the unused functions into the #ifdef

Maybe explicit "into the #ifdef CONFIG_BPF_STREAM_PARSER"?


Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Fixes: f747632b608f ("bpf: sockmap: Move generic sockmap hooks from BPF TCP")
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
Reviewed-by: Lorenz Bauer <lmb@xxxxxxxxxxxxxx>
Reviewed-by: Jakub Sitnicki <jakub@xxxxxxxxxxxxxx>

Acked-by: Yonghong Song <yhs@xxxxxx>