samples/bpf: add static to function with no prototype

Fixes the following warning

samples/bpf/cookie_uid_helper_example.c: At top level:
samples/bpf/cookie_uid_helper_example.c:276:6: warning: no previous prototype for ‘finish’ [-Wmissing-prototypes]
 void finish(int ret)
      ^~~~~~
  HOSTLD  samples/bpf/per_socket_stats_example

Signed-off-by: Alexander Alemayhu <alexander@alemayhu.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/samples/bpf/cookie_uid_helper_example.c b/samples/bpf/cookie_uid_helper_example.c
index ad5afedf2e7047db24db8565e0a433122e479912..9ce55840d61d222ec2c9881be9a108c7b630dba0 100644 (file)
--- a/samples/bpf/cookie_uid_helper_example.c
+++ b/samples/bpf/cookie_uid_helper_example.c
@@ -273,7 +273,7 @@ static int usage(void)
        return 1;
 }
 
-void finish(int ret)
+static void finish(int ret)
 {
        test_finish = true;
 }