From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f176.google.com (mail-pg1-f176.google.com [209.85.215.176]) (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 3A9953308A for ; Fri, 10 May 2024 02:38:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.176 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715308681; cv=none; b=rIQZjXs/3UtkcEg89EdECVRufjOHkkBo+IwhGjOOzh76TgwIttKKo7JtJlLatXfU+3/PICn6VatpqW5IDUPO80c1Set4YQD/yQoQUraHMxCDkSOFbaKZoC0pO8KKBaddUZKlbPoFBJ0M0p2oV/syTZGJym8yCc+8QjVPz4EbEKQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715308681; c=relaxed/simple; bh=YXw9iFbAtL0hKC/QpJkLnCKyJxztnZXxvSjvfGtVyc0=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=WJVJuHYH7+N+9RVO+7OOS9HIIsOMbEwVFZe0x3dGR7D0sLisujhLnMG13T9l4Nf5PrsWZaF4TfP9SEERaX1k3npmFtEwI9OibqCkIx3ryey+s+/gqnHGZx+Zt8YhmzZzSmguEB85N+0EHbcu9zlvSBGqqKqmpzXSZTkQq1SfWMg= 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=CHtoXYiJ; arc=none smtp.client-ip=209.85.215.176 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="CHtoXYiJ" Received: by mail-pg1-f176.google.com with SMTP id 41be03b00d2f7-5cdbc4334edso918548a12.3 for ; Thu, 09 May 2024 19:38:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1715308679; x=1715913479; 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=YXw9iFbAtL0hKC/QpJkLnCKyJxztnZXxvSjvfGtVyc0=; b=CHtoXYiJv+CGjcL/OGEYZ6tgkoXZvVPn63RH9yJGaxDhzwLWN4rIkhXwAr3O3y2AoD bLL7tTvmD01u5XiFWbmttrFo3prUp5pitgJIIV+6mHwnBSeyJShnqddeQu7xZ/gse/7i 9EeKvTriD6l5wXkNNHrLsF1a+vJJij7W8QA2RU5LmXmJhd6LxRKfxf7E2eMh4TzZKxpX PH+gMHpDq71L4se2OUIfcEVu/TV414/G1v+CTdzCeNQiSS1ziS6JA/eudcrzX9ikqC0H DQc6CQE1bWQBUo9+czq84O4nF3CQURVqEsO2Vjfw6Lpd9E5jIqEfTnzE3fP1yv+v2jHE 8+yw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1715308679; x=1715913479; 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=YXw9iFbAtL0hKC/QpJkLnCKyJxztnZXxvSjvfGtVyc0=; b=smoDib4gU5BaRxNN5WkXAZHULjoPHyFHnf5kKA7hznBnKbUVK5phPFHGEbo/5kMPSB F9nyAyogpSqtXzdM9/aGpr9PuaozSaISTb1tVqCdL1aNjmIp5bVeTqL8C34YCjRyecRi y5PvvxPurNoB5DD79XcbSnrooxnXpsPfUSAy+V08b8elJy5040CEIoT7RAD/LqHOFQtg Ugk2wG7tVI1ZSDxQNFBwP9UOguLW0qFaNx2Qw3gmcHWV/8E1EPBD9KMVWCCRGaI5MN+l R5FJvBA2BbxW0dj/xiYmeCoi28O065oCskA4FnOXqbXSmk1I7e13sVibu+ZBKEjx+o2z G5Yw== X-Forwarded-Encrypted: i=1; AJvYcCUhYQVo2jtkAlbJuFDPuxE0Tmkye4idn8t+6raKHOrjGO6TGfmwIDLCGX1yQwOvao1tuoYGpfr52LIn2k2aj0DGX2/U X-Gm-Message-State: AOJu0YxHds7iZwPVRA2yzjLUfwugP+7XgdGLbLSICxZZskCDKyxZCebf uleHUIygtk8cY3rAJrymLfxClR2VMPUptZCU1us4zDO6NXfutU0+ X-Google-Smtp-Source: AGHT+IFrVudD463zpC5KGvRYfXyky8ar6AS505b/F+lmi/Jw4izSS6BCBHUUgTCjoWVmHXEgRRKYHg== X-Received: by 2002:a05:6a20:9190:b0:1af:d51a:1ba9 with SMTP id adf61e73a8af0-1afde07ccb1mr2093242637.3.1715308679512; Thu, 09 May 2024 19:37:59 -0700 (PDT) Received: from ?IPv6:2604:3d08:6979:1160::3424? ([2604:3d08:6979:1160::3424]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2b62886d069sm4062314a91.25.2024.05.09.19.37.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 May 2024 19:37:59 -0700 (PDT) Message-ID: Subject: Re: [PATCH bpf-next v5 6/9] bpf: limit the number of levels of a nested struct type. From: Eduard Zingerman To: Kui-Feng Lee , bpf@vger.kernel.org, ast@kernel.org, martin.lau@linux.dev, song@kernel.org, kernel-team@meta.com, andrii@kernel.org Cc: sinquersw@gmail.com, kuifeng@meta.com Date: Thu, 09 May 2024 19:37:58 -0700 In-Reply-To: <20240510011312.1488046-7-thinker.li@gmail.com> References: <20240510011312.1488046-1-thinker.li@gmail.com> <20240510011312.1488046-7-thinker.li@gmail.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.44.4-0ubuntu2 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Thu, 2024-05-09 at 18:13 -0700, Kui-Feng Lee wrote: > Limit the number of levels looking into struct types to avoid running out > of stack space. >=20 > Signed-off-by: Kui-Feng Lee > --- Acked-by: Eduard Zingerman