From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DE8B6C197BF for ; Mon, 7 Dec 2020 14:09:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B366323447 for ; Mon, 7 Dec 2020 14:09:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726890AbgLGOJD (ORCPT ); Mon, 7 Dec 2020 09:09:03 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:42229 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726898AbgLGOJC (ORCPT ); Mon, 7 Dec 2020 09:09:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1607350056; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=f68iZRu/WdBikSsVv8YlnpzV5Hi/mSgEQNVLgxBduMA=; b=dzaqtDRYax8auqkexAQAn1xMi9UhsbnppdyhqEc2n0pr+Jb/Y05vjA79LUYsD0LZIA5DlG 4MNZEYdBzaBohYWwamdFQYYJ9E1UM3s4Fs7UUDTvPmnml6+eX1IQWme7PPixY5e+9UdG4z mAvGsdtSMA0k4LNrAc6Cq0yBJf6VZPE= Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-416-D5_jIQ3mNOSieIQD8LSEaQ-1; Mon, 07 Dec 2020 09:07:32 -0500 X-MC-Unique: D5_jIQ3mNOSieIQD8LSEaQ-1 Received: by mail-wm1-f71.google.com with SMTP id k128so5347379wme.7 for ; Mon, 07 Dec 2020 06:07:32 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:in-reply-to:references:date :message-id:mime-version; bh=f68iZRu/WdBikSsVv8YlnpzV5Hi/mSgEQNVLgxBduMA=; b=fxYZGua9CWQzS+B433LRDmN9TOA+wyqNN1mFX5W5b/lwn+ADocDBDmSVmjO6J6LsIJ evRccmaXTh+yA3yX8Rf9Q+nsRIyCtfuSsIBw9eBaoM/ZgrXot6ugSx9WqnEdVIpYvHu/ N+fps3V7t3L2ZNLygiqpB9LTC0w4GiHRGxgwRsVx9E0U1MOeZiUczrHc0SNL/iViSRDp PPuOZjpqfToczJQU66rxOMB58WZaunm92snl7pSm3CnkWXkLl5usyMHpzwVKcT+kxv8u ciIIxgvssf+JJ5khHDuu2A4d6SSyEBWIDXSMkju7VxeP4u8djg0ilCN631sNO0Ok3FbI LEIg== X-Gm-Message-State: AOAM531OkJim7HoRK4FDZdeFlvqjDJCLzceyVkqL6qOCh5d3RbozPboR 8y+/J/ySdDZj0WguFairi1VQBZ3K3VfrAuza7S0eOF+VzFGKvECfz/6jokxrjT+meZ7iDKK+Gom IxNThB5U1b6RK X-Received: by 2002:a1c:b0c4:: with SMTP id z187mr18648338wme.113.1607350051333; Mon, 07 Dec 2020 06:07:31 -0800 (PST) X-Google-Smtp-Source: ABdhPJzuKTXT9VjylEoopad3wtGlqLGRN+AzCEv1obwJwK40XnFtEennVUhJypx48PWbq6Rl81Mz4w== X-Received: by 2002:a1c:b0c4:: with SMTP id z187mr18648282wme.113.1607350050863; Mon, 07 Dec 2020 06:07:30 -0800 (PST) Received: from alrua-x1.borgediget.toke.dk ([2a0c:4d80:42:443::2]) by smtp.gmail.com with ESMTPSA id z21sm13853864wmk.20.2020.12.07.06.07.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Dec 2020 06:07:30 -0800 (PST) Received: by alrua-x1.borgediget.toke.dk (Postfix, from userid 1000) id E0FD61843F5; Mon, 7 Dec 2020 15:07:28 +0100 (CET) From: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= To: Alexei Starovoitov , Andrii Nakryiko Cc: bpf , Network Development , Alexei Starovoitov , Daniel Borkmann , Kernel Team , Alexei Starovoitov Subject: Re: [PATCH bpf-next] bpf: return -EOPNOTSUPP when attaching to non-kernel BTF In-Reply-To: References: <20201205030952.520743-1-andrii@kernel.org> X-Clacks-Overhead: GNU Terry Pratchett Date: Mon, 07 Dec 2020 15:07:28 +0100 Message-ID: <87lfe9676n.fsf@toke.dk> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Alexei Starovoitov writes: > On Fri, Dec 4, 2020 at 7:11 PM Andrii Nakryiko 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