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 X-Spam-Level: X-Spam-Status: No, score=-5.0 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8647C4346A for ; Mon, 21 Sep 2020 16:14:31 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 544CC206FB for ; Mon, 21 Sep 2020 16:14:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="D9Px/GHy"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KSBzV2lo" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 544CC206FB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:Subject: From:References:To:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=fusyXJoVtk228mtBqYZY2myBKyw5PKhJo4mn8fNTsM8=; b=D9Px/GHyet/sJPRVio4bwUCq8 tFO4IrDMukkEUu2K912BjeJYK/HofjAtxxf0d1W8DRqRkrCZrKeB/5Py2+zwn9fEoU09k6IQcMVXo GKvadq9KeYuBVqLGknpv7UbvbYm0PXvURh4+GWat6Okfb074JJO+X0qLtVQT5+UlIO7kl3HJFWJx4 cpLkpKEMmooGU9GX2exzNFpaa4mDtZHijuyusXB7yUbqVsmAZ99XfXbfoJkcUvcZMbzB4sEnmGSlG ZxNWkbLThGnQiFqiswxd8LWQ6+GG0zwAXU3nUjDlVIaEWloh0viYlo+L1M2oLvIP+LfBh+abInaKP FQQwCHc1Q==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kKOR0-0000ZS-Rh; Mon, 21 Sep 2020 16:12:58 +0000 Received: from mail-wr1-x444.google.com ([2a00:1450:4864:20::444]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kKOQw-0000Xn-V5 for linux-arm-kernel@lists.infradead.org; Mon, 21 Sep 2020 16:12:56 +0000 Received: by mail-wr1-x444.google.com with SMTP id z4so13411761wrr.4 for ; Mon, 21 Sep 2020 09:12:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=to:cc:references:from:autocrypt:subject:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=k5RgKONYESk5WvaDyXPiSm78/qDZHfPWmfVg3ttgBfg=; b=KSBzV2lo8cnmuvyEaOkVa90ube9JyAwhNzQ6SjrJ8mWdOMU0ZcGzdq+vT6njSGIvE2 UslULTxRFp0Q9zf28wwjuZmlCnDz2zJEjMripFnDNBw+v97xIQqQqpf9Fo/O/SHKE1QO 8/S2ZC/i9ShJMf3wE5z1T9QKE60kJV1amAByt13tTiGSE85p563qJ96uTzRDOmRqneJE Fm1XdGjqmUpffhzagblNlbPlh6LG5u/1y914H/bKUL0ATY/LA5C8y5G9ZYMgCoH1IFYj eIUhKZiRHMK7kxwnM7yfPBCHpsKjhQOHg+bVaj2lteMmcTOGsXhTsEUshtpby23/oJIp DORA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:to:cc:references:from:autocrypt:subject :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=k5RgKONYESk5WvaDyXPiSm78/qDZHfPWmfVg3ttgBfg=; b=ltwssiViwfnUZwiSa3xLb6+UhbNOG3c8t9GAHRzMMI3TWeKLN0CODr3fS48pEtCSEV D6apB4Qinw5NWfjYt9onUTyJGoXYc2DIxqHnTbz+faGCkczTdrH8w+VMcLEzeKvgeXK6 swgtcSFJ5I4sMIHmAQTIdaoQC9tWYKDi5kKvwZ1kJikH5FksuqY8+Ry0fN2duDGfzr7Z fmq96KDEu0ahTuUch+IgMZQSDEg0yCbr6PKiyLBuDXIJi1Pfc/lhn0dW/T/Wf4Y0Td7V t++dHjWCqfBD/66BUSls4oRjnaxPOr7NIPY0npZHJWC2p4YEF8iScWWrocpaPv9h6xxq /4vQ== X-Gm-Message-State: AOAM531RydA1hWkM+mkggcFFxsiJxd7Zv3/6LzdD5gdpTrNxfg+cHG/M Z3j8VNaXvxoxoYo1OnPx6CY= X-Google-Smtp-Source: ABdhPJwep7p3WKBoCBxJxiupB/7FZsxW6Ld/QPB+qZnLfoEMIt0xJkj549/omV4mOkMT/3+xHRa8ig== X-Received: by 2002:a5d:4a0e:: with SMTP id m14mr518600wrq.313.1600704773004; Mon, 21 Sep 2020 09:12:53 -0700 (PDT) Received: from [192.168.43.240] ([5.100.192.97]) by smtp.gmail.com with ESMTPSA id b18sm22480621wrn.21.2020.09.21.09.12.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 21 Sep 2020 09:12:52 -0700 (PDT) To: Andy Lutomirski , Arnd Bergmann References: From: Pavel Begunkov Autocrypt: addr=asml.silence@gmail.com; prefer-encrypt=mutual; keydata= mQINBFmKBOQBEAC76ZFxLAKpDw0bKQ8CEiYJRGn8MHTUhURL02/7n1t0HkKQx2K1fCXClbps bdwSHrhOWdW61pmfMbDYbTj6ZvGRvhoLWfGkzujB2wjNcbNTXIoOzJEGISHaPf6E2IQx1ik9 6uqVkK1OMb7qRvKH0i7HYP4WJzYbEWVyLiAxUj611mC9tgd73oqZ2pLYzGTqF2j6a/obaqha +hXuWTvpDQXqcOZJXIW43atprH03G1tQs7VwR21Q1eq6Yvy2ESLdc38EqCszBfQRMmKy+cfp W3U9Mb1w0L680pXrONcnlDBCN7/sghGeMHjGKfNANjPc+0hzz3rApPxpoE7HC1uRiwC4et83 CKnncH1l7zgeBT9Oa3qEiBlaa1ZCBqrA4dY+z5fWJYjMpwI1SNp37RtF8fKXbKQg+JuUjAa9 Y6oXeyEvDHMyJYMcinl6xCqCBAXPHnHmawkMMgjr3BBRzODmMr+CPVvnYe7BFYfoajzqzq+h EyXSl3aBf0IDPTqSUrhbmjj5OEOYgRW5p+mdYtY1cXeK8copmd+fd/eTkghok5li58AojCba jRjp7zVOLOjDlpxxiKhuFmpV4yWNh5JJaTbwCRSd04sCcDNlJj+TehTr+o1QiORzc2t+N5iJ NbILft19Izdn8U39T5oWiynqa1qCLgbuFtnYx1HlUq/HvAm+kwARAQABtDFQYXZlbCBCZWd1 bmtvdiAoc2lsZW5jZSkgPGFzbWwuc2lsZW5jZUBnbWFpbC5jb20+iQJOBBMBCAA4FiEE+6Ju PTjTbx479o3OWt5b1Glr+6UFAlmKBOQCGwMFCwkIBwIGFQgJCgsCBBYCAwECHgECF4AACgkQ Wt5b1Glr+6WxZA//QueaKHzgdnOikJ7NA/Vq8FmhRlwgtP0+E+w93kL+ZGLzS/cUCIjn2f4Q Mcutj2Neg0CcYPX3b2nJiKr5Vn0rjJ/suiaOa1h1KzyNTOmxnsqE5fmxOf6C6x+NKE18I5Jy xzLQoktbdDVA7JfB1itt6iWSNoOTVcvFyvfe5ggy6FSCcP+m1RlR58XxVLH+qlAvxxOeEr/e aQfUzrs7gqdSd9zQGEZo0jtuBiB7k98t9y0oC9Jz0PJdvaj1NZUgtXG9pEtww3LdeXP/TkFl HBSxVflzeoFaj4UAuy8+uve7ya/ECNCc8kk0VYaEjoVrzJcYdKP583iRhOLlZA6HEmn/+Gh9 4orG67HNiJlbFiW3whxGizWsrtFNLsSP1YrEReYk9j1SoUHHzsu+ZtNfKuHIhK0sU07G1OPN 2rDLlzUWR9Jc22INAkhVHOogOcc5ajMGhgWcBJMLCoi219HlX69LIDu3Y34uIg9QPZIC2jwr 24W0kxmK6avJr7+n4o8m6sOJvhlumSp5TSNhRiKvAHB1I2JB8Q1yZCIPzx+w1ALxuoWiCdwV M/azguU42R17IuBzK0S3hPjXpEi2sK/k4pEPnHVUv9Cu09HCNnd6BRfFGjo8M9kZvw360gC1 reeMdqGjwQ68o9x0R7NBRrtUOh48TDLXCANAg97wjPoy37dQE7e5Ag0EWYoE5AEQAMWS+aBV IJtCjwtfCOV98NamFpDEjBMrCAfLm7wZlmXy5I6o7nzzCxEw06P2rhzp1hIqkaab1kHySU7g dkpjmQ7Jjlrf6KdMP87mC/Hx4+zgVCkTQCKkIxNE76Ff3O9uTvkWCspSh9J0qPYyCaVta2D1 Sq5HZ8WFcap71iVO1f2/FEHKJNz/YTSOS/W7dxJdXl2eoj3gYX2UZNfoaVv8OXKaWslZlgqN jSg9wsTv1K73AnQKt4fFhscN9YFxhtgD/SQuOldE5Ws4UlJoaFX/yCoJL3ky2kC0WFngzwRF Yo6u/KON/o28yyP+alYRMBrN0Dm60FuVSIFafSqXoJTIjSZ6olbEoT0u17Rag8BxnxryMrgR dkccq272MaSS0eOC9K2rtvxzddohRFPcy/8bkX+t2iukTDz75KSTKO+chce62Xxdg62dpkZX xK+HeDCZ7gRNZvAbDETr6XI63hPKi891GeZqvqQVYR8e+V2725w+H1iv3THiB1tx4L2bXZDI DtMKQ5D2RvCHNdPNcZeldEoJwKoA60yg6tuUquvsLvfCwtrmVI2rL2djYxRfGNmFMrUDN1Xq F3xozA91q3iZd9OYi9G+M/OA01husBdcIzj1hu0aL+MGg4Gqk6XwjoSxVd4YT41kTU7Kk+/I 5/Nf+i88ULt6HanBYcY/+Daeo/XFABEBAAGJAjYEGAEIACAWIQT7om49ONNvHjv2jc5a3lvU aWv7pQUCWYoE5AIbDAAKCRBa3lvUaWv7pfmcEACKTRQ28b1y5ztKuLdLr79+T+LwZKHjX++P 4wKjEOECCcB6KCv3hP+J2GCXDOPZvdg/ZYZafqP68Yy8AZqkfa4qPYHmIdpODtRzZSL48kM8 LRzV8Rl7J3ItvzdBRxf4T/Zseu5U6ELiQdCUkPGsJcPIJkgPjO2ROG/ZtYa9DvnShNWPlp+R uPwPccEQPWO/NP4fJl2zwC6byjljZhW5kxYswGMLBwb5cDUZAisIukyAa8Xshdan6C2RZcNs rB3L7vsg/R8UCehxOH0C+NypG2GqjVejNZsc7bgV49EOVltS+GmGyY+moIzxsuLmT93rqyII 5rSbbcTLe6KBYcs24XEoo49Zm9oDA3jYvNpeYD8rDcnNbuZh9kTgBwFN41JHOPv0W2FEEWqe JsCwQdcOQ56rtezdCJUYmRAt3BsfjN3Jn3N6rpodi4Dkdli8HylM5iq4ooeb5VkQ7UZxbCWt UVMKkOCdFhutRmYp0mbv2e87IK4erwNHQRkHUkzbsuym8RVpAZbLzLPIYK/J3RTErL6Z99N2 m3J6pjwSJY/zNwuFPs9zGEnRO4g0BUbwGdbuvDzaq6/3OJLKohr5eLXNU3JkT+3HezydWm3W OPhauth7W0db74Qd49HXK0xe/aPrK+Cp+kU1HRactyNtF8jZQbhMCC8vMGukZtWaAwpjWiiH bA== Subject: Re: [PATCH 1/9] kernel: add a PF_FORCE_COMPAT flag Message-ID: <563138b5-7073-74bc-f0c5-b2bad6277e87@gmail.com> Date: Mon, 21 Sep 2020 19:10:20 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200921_121255_367246_3D85F0D8 X-CRM114-Status: GOOD ( 27.13 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aio , "open list:MIPS" , David Howells , Linux-MM , keyrings@vger.kernel.org, sparclinux , Christoph Hellwig , linux-arch , linux-s390 , Linux SCSI List , X86 ML , linux-block , Al Viro , Andy Lutomirski , io-uring@vger.kernel.org, linux-arm-kernel , Jens Axboe , Parisc List , Network Development , LKML , LSM List , Linux FS Devel , Andrew Morton , linuxppc-dev Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gMjAvMDkvMjAyMCAwMToyMiwgQW5keSBMdXRvbWlyc2tpIHdyb3RlOgo+IAo+PiBPbiBTZXAg MTksIDIwMjAsIGF0IDI6MTYgUE0sIEFybmQgQmVyZ21hbm4gPGFybmRAYXJuZGIuZGU+IHdyb3Rl Ogo+Pgo+PiDvu79PbiBTYXQsIFNlcCAxOSwgMjAyMCBhdCA2OjIxIFBNIEFuZHkgTHV0b21pcnNr aSA8bHV0b0BrZXJuZWwub3JnPiB3cm90ZToKPj4+PiBPbiBGcmksIFNlcCAxOCwgMjAyMCBhdCA4 OjE2IEFNIENocmlzdG9waCBIZWxsd2lnIDxoY2hAbHN0LmRlPiB3cm90ZToKPj4+PiBPbiBGcmks IFNlcCAxOCwgMjAyMCBhdCAwMjo1ODoyMlBNICswMTAwLCBBbCBWaXJvIHdyb3RlOgo+Pj4+PiBT YWlkIHRoYXQsIHdoeSBub3QgcHJvdmlkZSBhIHZhcmlhbnQgdGhhdCB3b3VsZCB0YWtlIGFuIGV4 cGxpY2l0Cj4+Pj4+ICJpcyBpdCBjb21wYXQiIGFyZ3VtZW50IGFuZCB1c2UgaXQgdGhlcmU/ICBB bmQgaGF2ZSB0aGUgbm9ybWFsCj4+Pj4+IG9uZSBwYXNzIGluX2NvbXBhdF9zeXNjYWxsKCkgdG8g dGhhdC4uLgo+Pj4+Cj4+Pj4gVGhhdCB3b3VsZCBoZWxwIHRvIG5vdCBpbnRyb2R1Y2UgYSByZWdy ZXNzaW9uIHdpdGggdGhpcyBzZXJpZXMgeWVzLgo+Pj4+IEJ1dCBpdCB3b3VsZG4ndCBmaXggZXhp c3RpbmcgYnVncyB3aGVuIGlvX3VyaW5nIGlzIHVzZWQgdG8gYWNjZXNzCj4+Pj4gcmVhZCBvciB3 cml0ZSBtZXRob2RzIHRoYXQgdXNlIGluX2NvbXBhdF9zeXNjYWxsKCkuICBPbmUgZXhhbXBsZSB0 aGF0Cj4+Pj4gSSByZWNlbnRseSByYW4gaW50byBpcyBkcml2ZXJzL3Njc2kvc2cuYy4KPj4KPj4g QWgsIHNvIHJlYWRpbmcgL2Rldi9pbnB1dC9ldmVudCogd291bGQgc3VmZmVyIGZyb20gdGhlIHNh bWUgaXNzdWUsCj4+IGFuZCB0aGF0IG9uZSB3b3VsZCBpbiBmYWN0IGJlIGJyb2tlbiBieSB5b3Vy IHBhdGNoIGluIHRoZSBoeXBvdGhldGljYWwKPj4gY2FzZSB0aGF0IHNvbWVvbmUgdHJpZWQgdG8g dXNlIGlvX3VyaW5nIHRvIHJlYWQgL2Rldi9pbnB1dC9ldmVudCBvbiB4MzIuLi4KPj4KPj4gRm9y IHJlZmVyZW5jZSwgSSBjaGVja2VkIHRoZSBzb2NrZXQgdGltZXN0YW1wIGhhbmRsaW5nIHRoYXQg aGFzIGEKPj4gbnVtYmVyIG9mIGNvcm5lciBjYXNlcyB3aXRoIHRpbWUzMi90aW1lNjQgZm9ybWF0 cyBpbiBjb21wYXQgbW9kZSwKPj4gYnV0IG5vbmUgb2YgdGhvc2UgYXBwZWFyIHRvIGJlIGFmZmVj dGVkIGJ5IHRoZSBwcm9ibGVtLgo+Pgo+Pj4gQXNpZGUgZnJvbSB0aGUgcG90ZW50aWFsbHkgbmFz dHkgdXNlIG9mIHBlci10YXNrIHZhcmlhYmxlcywgb25lIHRoaW5nCj4+PiBJIGRvbid0IGxpa2Ug YWJvdXQgUEZfRk9SQ0VfQ09NUEFUIGlzIHRoYXQgaXQncyBvbmUtd2F5LiAgSWYgd2UncmUKPj4+ IGdvaW5nIHRvIGhhdmUgYSBnZW5lcmljIG1lY2hhbmlzbSBmb3IgdGhpcywgc2hvdWxkbid0IHdl IGFsbG93IGEgZnVsbAo+Pj4gb3ZlcnJpZGUgb2YgdGhlIHN5c2NhbGwgYXJjaCBpbnN0ZWFkIG9m IGp1c3QgYWxsb3dpbmcgZm9yY2luZyBjb21wYXQKPj4+IHNvIHRoYXQgYSBjb21wYXQgc3lzY2Fs bCBjYW4gZG8gYSBub24tY29tcGF0IG9wZXJhdGlvbj8KPj4KPj4gVGhlIG9ubHkgcmVhc29uIGl0 J3MgbmVlZGVkIGhlcmUgaXMgdGhhdCB0aGUgY2FsbGVyIGlzIGluIGEga2VybmVsCj4+IHRocmVh ZCByYXRoZXIgdGhhbiBhIHN5c3RlbSBjYWxsLiBBcmUgdGhlcmUgYW55IHBvc3NpYmxlIHNjZW5h cmlvcwo+PiB3aGVyZSBvbmUgd291bGQgYWN0dWFsbHkgbmVlZCB0aGUgb3Bwb3NpdGU/Cj4+Cj4g Cj4gSSBjYW4gY2VydGFpbmx5IGltYWdpbmUgbmVlZGluZyB0byBmb3JjZSB4MzIgbW9kZSBmcm9t IGEga2VybmVsIHRocmVhZC4KPiAKPiBBcyBmb3IgdGhlIG90aGVyIGRpcmVjdGlvbjogd2hhdCBl eGFjdGx5IGFyZSB0aGUgZGVzaXJlZCBiaXRuZXNzL2FyY2ggc2VtYW50aWNzIG9mIGlvX3VyaW5n PyAgSXMgdGhlIG9wZXJhdGlvbiBiaXRuZXNzIGNob3NlbiBieSB0aGUgaW9fdXJpbmcgY3JlYXRp b24gb3IgYnkgdGhlIGlvX3VyaW5nX2VudGVyKCkgYml0bmVzcz8KCkl0J3MgcmF0aGVyIHRoZSBz ZWNvbmQgb25lLiBFdmVuIHRob3VnaCBBRkFJUiBpdCB3YXNuJ3QgZGlzY3Vzc2VkCnNwZWNpZmlj YWxseSwgdGhhdCBob3cgaXQgd29ya3Mgbm93IChfcGFydGlhbGx5XykuCgotLSAKUGF2ZWwgQmVn dW5rb3YKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxp bnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFk ZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4 LWFybS1rZXJuZWwK