From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f182.google.com (mail-pf1-f182.google.com [209.85.210.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 57F3A19BA6; Sat, 14 Dec 2024 06:18:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734157085; cv=none; b=L3655UUxhMUW03V8l32QQMrzOtRNRdx4BmfYYaXA0jrh3SwRS5Cu2uVeVrwp917lnzuI4dNv4Evylqi7oylLvJfEvabDbindXJM20v1D8wagnfliYSaKA0zl4r8Np1st1M1C1OgUOME1Ygsd3kOjZ2sFcKL7DuNbg5XAY8fRRB4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734157085; c=relaxed/simple; bh=fHcDC9/3fjxqA23UY0rgQz3K5BSqWz9mQZQLiNiCkOI=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=mzyXvOqeetaXLLzI7sYpF+dDEbgNkIcurbxWXHqHSGbbMQelZUJH4CvbfPFFRyKSSSyKyFOM/qX2i/9wtmq6uRRn+IF+3ge5aTfCofgHuBD7apmLrA9xpbj2e6Z/qGt8alHqLHccw7ZZ3aDV6M1qDSuJiNMYGVaJoZDz+ez2xqU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=mvO9T7e7; arc=none smtp.client-ip=209.85.210.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mvO9T7e7" Received: by mail-pf1-f182.google.com with SMTP id d2e1a72fcca58-728eedfca37so2642105b3a.2; Fri, 13 Dec 2024 22:18:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1734157083; x=1734761883; darn=vger.kernel.org; h=mime-version:user-agent:content-transfer-encoding:references :in-reply-to:date:cc:to:from:subject:message-id:from:to:cc:subject :date:message-id:reply-to; bh=fHcDC9/3fjxqA23UY0rgQz3K5BSqWz9mQZQLiNiCkOI=; b=mvO9T7e7xp7YEDWKl8o+JDvmsOBMs2sifaSfY8+pyy2u8O+TFX7psnHfmDHaggErXg Z972CUa3oWq8QHDrFwBZe8Jpz+iiyT1Ioz6kf042dBUnDV0RSnvKZtaucn+8s9H37FBb RL0YioNko4lXKfz2g21lQFFP20dc4GH8fYfO4mkoQn5zEoOcCYuE7VgQXVadI2U3yclf IO+xK43SOChPIZipMbPai9prd6vUxhLmLgV9Yj5VuRfWWRslQ4tsvru2AXzlPG4yda9G kNw5lIDz2lm3ot4VliwyFiJrptt4Do2OPerx9pmQXnPQTWlD4cMREWAEO6gvvi7Oi8WZ +VLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734157083; x=1734761883; h=mime-version:user-agent:content-transfer-encoding:references :in-reply-to:date:cc:to:from:subject:message-id:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=fHcDC9/3fjxqA23UY0rgQz3K5BSqWz9mQZQLiNiCkOI=; b=XX6bHmzFtv21gak4HA627e4P9nPIm64outPThj7ZSGUGcW+y6UWqYZafJeAX96QeAV G/2MMFcRikPoDYTQcixxf2gcnX5ppghfi1yuJOT+Dv3iGWLhWxMO5/H9qY36rbo7pAuS pvpkcp1F4e4TliWuS+gbKZZt9oTIiqPUA+w/1cLnNNFt9Z2neiYDrJvHA9+VK6m54V84 2ZZTrmVR466P3eyUD3/vwRGKfVyV3BLNBHaqEm6o+Yyc8iG0c1Qgt6rc5cBV2zcsY3bb f6hH6Tz8kmNv95yUPpNGvk8H8kVYEYZLHVK4wuKwVM6L2HsAe3chbrStRjDLayIuAqYa rvrg== X-Forwarded-Encrypted: i=1; AJvYcCU+uKbmowzSiHdlYcPszIDesUvIOV/BAiF0GoCPlGsJFkYRNWlMLGvCHP04mcSnndg00IeHd2LZ12l2h0fq@vger.kernel.org, AJvYcCUfqzsRcF9yYbXAg6deMM5HfzxEVuZR6mxN8Ad4mN+nIGRVAvzxt+DwPlDlqJRH9XYSU+uv73aZ@vger.kernel.org, AJvYcCV6e/vNHZNYfoeglu309z8Mz01Pr0cbNiUVThmb0kJgjYK20mQ7WD9ayYm2vT1Mokgx/N4=@vger.kernel.org, AJvYcCVEKT7HFSCfvh7QMlMPtWPpXEzGJeWycgcuibs8CDngbYbJMGvMJ642hkWaBNLcD39bcIB50koYJZVsVYhcwb8c@vger.kernel.org X-Gm-Message-State: AOJu0Yzq0tmEsV2Xw4UCEOuhVZci5l9DRA6j/1c6cCz8FSTW35RFEttc 80OSDOz/M2hfnHP8vTGkzaxEQ6oozF/gP4Y2qLrFKRTkIoYphnYu X-Gm-Gg: ASbGnctEg73KFzL+KHKK/jkw9yO1MmjHb5ngPEE3arhtomLrWliyGV9dCF36dWqBx7S vhnozK02F0+OAjs+yaXVPe9eycbp2fawuvczLDvVwhgYj565MIN4XRn+NKfnIghm6R+YGZVzcCN mD9zY/+aBP2dcy3Z/xH5pGOJErSWzL/uZxKq54kcOt6Di8xVaoK+xU+VubpX6SrHfCkSes8zvCG D/IIUso8oUnk52jF3YA7ulVrS9FHowRhKOfReafQvIPyvyLkUFVEQ== X-Google-Smtp-Source: AGHT+IGWJW1+Pwpvx67EW8U4m0L0clqnU493+l3wbL2x0EMI3Oje+f6Aw9Q0/lrCQB/2hhJyEiBupA== X-Received: by 2002:a05:6a21:6da3:b0:1e1:a9dd:5a58 with SMTP id adf61e73a8af0-1e1dfdee4d9mr7575951637.30.1734157082400; Fri, 13 Dec 2024 22:18:02 -0800 (PST) Received: from [192.168.0.235] ([38.34.87.7]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-72918bce8d9sm763149b3a.200.2024.12.13.22.18.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Dec 2024 22:18:01 -0800 (PST) Message-ID: <00d01559793cb22a323ff8e800e1ed6e79163e57.camel@gmail.com> Subject: Re: [PATCH bpf-next v5 5/5] bpf: selftests: verifier: Add nullness elision tests From: Eduard Zingerman To: Daniel Xu , andrii@kernel.org, ast@kernel.org, shuah@kernel.org, daniel@iogearbox.net Cc: mykolal@fb.com, martin.lau@linux.dev, song@kernel.org, yonghong.song@linux.dev, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, jolsa@kernel.org, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Date: Fri, 13 Dec 2024 22:17:56 -0800 In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.54.1 (3.54.1-1.fc41) Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Thu, 2024-12-12 at 16:22 -0700, Daniel Xu wrote: > Test that nullness elision works for common use cases. For example, we > want to check that both full and subreg stack slots are recognized. As > well as when there's both const and non-const values of R2 leading up to > a lookup. And obviously some bound checks. >=20 > Signed-off-by: Daniel Xu > --- Daniel, since there would be a respin of this patch-set, maybe consider using plain C for some of the tests? [...]