On Mon, 17 Jul 2023 16:51:29 -0700 Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx> wrote: > On Mon, Jul 17, 2023 at 4:46 PM Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote: > > > > > > > > > + * Return NULL if not found, or return -EINVAL if parameter is invalid. > > > > + */ > > > > +const struct btf_type *btf_find_func_proto(struct btf *btf, const char *func_name) > > > > +{ > > > > + const struct btf_type *t; > > > > + s32 id; > > > > + > > > > + if (!btf || !func_name) > > > > + return ERR_PTR(-EINVAL); > > Please remove these checks. > We don't do defensive programming in the BPF subsystem. > Don't pass NULL pointers to such functions. OK, we will trust API user to pass a non-NULL parameters. Thank you! -- Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>