From patchwork Thu Apr 20 03:27:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Feng Zhou X-Patchwork-Id: 13217803 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 AC54BC6FD18 for ; Thu, 20 Apr 2023 03:27:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231823AbjDTD1w (ORCPT ); Wed, 19 Apr 2023 23:27:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230476AbjDTD1u (ORCPT ); Wed, 19 Apr 2023 23:27:50 -0400 Received: from mail-pg1-x531.google.com (mail-pg1-x531.google.com [IPv6:2607:f8b0:4864:20::531]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BA9AF40D4 for ; Wed, 19 Apr 2023 20:27:48 -0700 (PDT) Received: by mail-pg1-x531.google.com with SMTP id 41be03b00d2f7-51f6461af24so373024a12.2 for ; Wed, 19 Apr 2023 20:27:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1681961268; x=1684553268; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=+tV8crDjofyv0750I49wkl0WcXsLL7eDJ+4zb9fuL8U=; b=U+0vKGQyRzTzOtm6Vwg6IvsfLIs8cE/cGzeNtzx/bOizHJ7DmvCcD5SqTWcXZ3lBG2 X5Q4SnbgVn3mM3KKXRrcEk+hkuadH13xYkjRW8+NkOOBf4R3tnIG8xP1HK7ZpXcSeSAv KsQh6BDaa92EkVmqCUis//S7ULVq1/T7nJIeAcivnmkYVQlN/PGIxl7rD1yKFrCW+n18 u5/CbN/u0PnvTmUZqaaOnDZelKOMiL4snXvUbf1RiKmuhhFvfnGaJu2h48DrkB4ivmRb rYePZSlLBGn0jt7Xp8hRYCw4igd1jgE9zB5dXzu8APxgZpI/+fc5nAJIJvKMZfbbNNJb zjVw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681961268; x=1684553268; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=+tV8crDjofyv0750I49wkl0WcXsLL7eDJ+4zb9fuL8U=; b=jH62ufqjNR6CBMfQzuMHOlsTA0olAic9b8oibtDXnBFTYSgs6jvR6e/XlBA0FlSGAq ybGFMAEVhJJS2Q8+9vuFE3tKE3IQ6ZgPyB9JME7sa70aWHVSFvkc3vTBJCM21cFcNnYm NJTygsDt1AuAiwFc0PfcC9sq2dG0oaj/Oxmxy0idY6ASjRdJFaa22uh3dBiy8mkIDmwj t4Kpo1/JU462pAYHCJ4wyI88SZUWm3CpCnfwzGzuV7W8z/i7cMVuSdd7+eBALdE71kUb Sq6s3koxLm540vm4WLLFcd4Qx/YyooyKOXvg81nxk7g4gLkw30t2xMM1EY1mojRq8S7H Luzg== X-Gm-Message-State: AAQBX9ePQpJIKwJrdg6leNacmOfM62y4L0VpIYnTC2ivhiEdmemmoccB V+VqSuAyKVF2p6ObBYZJjE9NWA== X-Google-Smtp-Source: AKy350b11RA/ThCptub+7HGqXeK5nxFLIG8g9zQvW6pVmBjrPR/BPpPduPKtIrxkCPLdy4PmJp7wMQ== X-Received: by 2002:a17:90a:5890:b0:246:8497:37c5 with SMTP id j16-20020a17090a589000b00246849737c5mr123367pji.46.1681961268202; Wed, 19 Apr 2023 20:27:48 -0700 (PDT) Received: from C02F52LSML85.bytedance.net ([139.177.225.254]) by smtp.gmail.com with ESMTPSA id z15-20020a655a4f000000b00517abaac366sm115231pgs.74.2023.04.19.20.27.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Apr 2023 20:27:47 -0700 (PDT) From: Feng zhou To: martin.lau@linux.dev, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, song@kernel.org, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com, haoluo@google.com, jolsa@kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, mykolal@fb.com, shuah@kernel.org Cc: bpf@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-kselftest@vger.kernel.org, yangzhenze@bytedance.com, wangdongdong.6@bytedance.com, zhouchengming@bytedance.com, zhoufeng.zf@bytedance.com Subject: [PATCH bpf-next v2 0/2] Access variable length array relaxed for integer type Date: Thu, 20 Apr 2023 11:27:33 +0800 Message-Id: <20230420032735.27760-1-zhoufeng.zf@bytedance.com> X-Mailer: git-send-email 2.39.2 (Apple Git-143) MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org From: Feng Zhou Add support for integer type of accessing variable length array. Add a selftest to check it. Feng Zhou (2): bpf: support access variable length array of integer type selftests/bpf: Add test to access integer type of variable array Changelog: v1->v2: Addressed comments from Alexei Starovoitov - Add one more use case. Details in here: https://lore.kernel.org/bpf/20230417080749.39074-1-zhoufeng.zf@bytedance.com/ kernel/bpf/btf.c | 8 +++++--- .../selftests/bpf/bpf_testmod/bpf_testmod.c | 20 +++++++++++++++++++ .../bpf/prog_tests/access_variable_array.c | 16 +++++++++++++++ .../selftests/bpf/prog_tests/tracing_struct.c | 2 ++ .../bpf/progs/test_access_variable_array.c | 19 ++++++++++++++++++ .../selftests/bpf/progs/tracing_struct.c | 13 ++++++++++++ 6 files changed, 75 insertions(+), 3 deletions(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/access_variable_array.c create mode 100644 tools/testing/selftests/bpf/progs/test_access_variable_array.c