From: kernel test robot <lkp@xxxxxxxxx> net/bpf/test_run.c:296:6-10: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) Zero-length and one-element arrays are deprecated, see Documentation/process/deprecated.rst Flexible-array members should be used instead. Generated by: scripts/coccinelle/misc/flexible_array.cocci Fixes: c1ff181ffabc ("selftests/bpf: Extend kfunc selftests") CC: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx> Reported-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: Julia Lawall <julia.lawall@xxxxxxxx> test_run.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/net/bpf/test_run.c +++ b/net/bpf/test_run.c @@ -293,7 +293,7 @@ struct prog_test_fail2 { struct prog_test_fail3 { int len; char arr1[2]; - char arr2[0]; + char arr2[]; }; noinline void bpf_kfunc_call_test_pass_ctx(struct __sk_buff *skb)