samples/bpf: Drop unnecessary fallthrough

__fallthrough is now not supported. Instead of renaming it to
now-canonical ([0]) fallthrough pseudo-keyword, just get rid of it and
equate 'h' case to default case, as both emit usage information and
succeed.

  [0] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20230516001718.317177-1-andrii@kernel.org

diff --git a/samples/bpf/hbm.c b/samples/bpf/hbm.c
index 6448b78..bf66277 100644 (file)
--- a/samples/bpf/hbm.c
+++ b/samples/bpf/hbm.c
@@ -498,7 +498,6 @@ int main(int argc, char **argv)
                                        "Option -%c requires an argument.\n\n",
                                        optopt);
                case 'h':
-                       __fallthrough;
                default:
                        Usage();
                        return 0;