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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6B888C38A02 for ; Mon, 31 Oct 2022 11:14:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230445AbiJaLOl convert rfc822-to-8bit (ORCPT ); Mon, 31 Oct 2022 07:14:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56792 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230415AbiJaLOi (ORCPT ); Mon, 31 Oct 2022 07:14:38 -0400 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.86.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C564BC77C for ; Mon, 31 Oct 2022 04:14:35 -0700 (PDT) Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-153-uiI169kPNS6lOD7Z8msFUQ-1; Mon, 31 Oct 2022 11:14:32 +0000 X-MC-Unique: uiI169kPNS6lOD7Z8msFUQ-1 Received: from AcuMS.Aculab.com (10.202.163.6) by AcuMS.aculab.com (10.202.163.6) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Mon, 31 Oct 2022 11:14:31 +0000 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.042; Mon, 31 Oct 2022 11:14:31 +0000 From: David Laight To: "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" CC: Jiri Olsa Subject: Linux 6.1-rc3 build fail in include/linux/bpf.h Thread-Topic: Linux 6.1-rc3 build fail in include/linux/bpf.h Thread-Index: AdjtGTCPbw9N9pokSJmsEaDNMnM9Hg== Date: Mon, 31 Oct 2022 11:14:31 +0000 Message-ID: <439d8dc735bb4858875377df67f1b29a@AcuMS.aculab.com> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The 6.1-rc3 sources fail to build because bpf.h unconditionally #define BPF_DISPATCHER_ATTRIBUTES __attribute__((patchable_function_entry(5))) for X86_64 builds. I'm pretty sure that should depend on some other options since the compiler isn't required to support it. (The gcc 7.5.0 on my Ubunti 18.04 system certainly doesn't) The only other reference to that attribute is in the definition of 'notrace' in compiler.h. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)