From patchwork Fri Mar 29 01:01:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrey Ignatov X-Patchwork-Id: 1068935 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=fb.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=fb.com header.i=@fb.com header.b="rCn4AHPp"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44Vk3f4GTBz9sS1 for ; Fri, 29 Mar 2019 12:02:22 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728499AbfC2BCV (ORCPT ); Thu, 28 Mar 2019 21:02:21 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:46150 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728027AbfC2BCV (ORCPT ); Thu, 28 Mar 2019 21:02:21 -0400 Received: from pps.filterd (m0044008.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x2T0x1en018955 for ; Thu, 28 Mar 2019 18:02:20 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=facebook; bh=4UIm/ls21tCvJnJPoRfO2TrOMgTYsGGQQtTJsKdHSsY=; b=rCn4AHPpwWw0moIz0iefdLA4+7yrG6OlfQ7LAdYg9SWi7gW8Tx5ajcjDnTXc0kUS2bpa NxhirFm6XLhJxu9ORBB/es42y2i9F9gnMhOtQBRwZsNhfe9CawNDBNHZT1K1LYppOzlU lumcQvbVzqO+7/kedLE17imBDM6PLdib2a4= Received: from maileast.thefacebook.com ([199.201.65.23]) by mx0a-00082601.pphosted.com with ESMTP id 2rh2432g3c-3 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for ; Thu, 28 Mar 2019 18:02:20 -0700 Received: from mx-out.facebook.com (2620:10d:c0a1:3::13) by mail.thefacebook.com (2620:10d:c021:18::176) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA) id 15.1.1713.5; Thu, 28 Mar 2019 18:02:18 -0700 Received: by dev082.prn2.facebook.com (Postfix, from userid 572249) id 3631737028DC; Thu, 28 Mar 2019 18:02:14 -0700 (PDT) Smtp-Origin-Hostprefix: dev From: Andrey Ignatov Smtp-Origin-Hostname: dev082.prn2.facebook.com To: CC: Andrey Ignatov , , , Smtp-Origin-Cluster: prn2c23 Subject: [PATCH bpf-next 0/2] bpf: Support variable offset stack access from helpers Date: Thu, 28 Mar 2019 18:01:56 -0700 Message-ID: X-Mailer: git-send-email 2.17.1 X-FB-Internal: Safe MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-03-29_01:, , signatures=0 X-Proofpoint-Spam-Reason: safe X-FB-Internal: Safe Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The patch set adds support for stack access with variable offset from helpers. Patch 1 is the main patch in the set and provides more details. Patch 2 adds selftests for new functionality. Andrey Ignatov (2): bpf: Support variable offset stack access from helpers selftests/bpf: Test variable offset stack access kernel/bpf/verifier.c | 75 +++++++++++++----- .../testing/selftests/bpf/verifier/var_off.c | 79 ++++++++++++++++++- 2 files changed, 131 insertions(+), 23 deletions(-)