Re: [PATCH bpf-next] bpf: return -EOPNOTSUPP when attaching to non-kernel BTF

[Toke Høiland-Jørgensen <toke@xxxxxxxxxx>]

Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx> writes:

> On Fri, Dec 4, 2020 at 7:11 PM Andrii Nakryiko <andrii@xxxxxxxxxx> wrote:
>> +                               return -EOPNOTSUPP;
>
> $ cd kernel/bpf
> $ git grep ENOTSUPP|wc -l
> 46
> $ git grep EOPNOTSUPP|wc -l
> 11

But also

$ cd kernel/include/uapi
$ git grep ENOTSUPP | wc -l
0
$ git grep EOPNOTSUPP | wc -l
8

(i.e., ENOTSUPP is not defined in userspace headers at all)

-Toke