Received: by 2002:ac0:a5a6:0:0:0:0:0 with SMTP id m35-v6csp4684543imm; Mon, 17 Sep 2018 19:42:47 -0700 (PDT) X-Google-Smtp-Source: ANB0VdZ9ALQ/bCfbbywT+uM7L/zAeVSV8WiVyGEjFTpiKplBFgWE/oRVYZO2meLUY/9duVVDrN4n X-Received: by 2002:a65:6398:: with SMTP id h24-v6mr26020091pgv.245.1537238567241; Mon, 17 Sep 2018 19:42:47 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1537238567; cv=none; d=google.com; s=arc-20160816; b=gfYtA3nn17MYshMV6uEFLwn55z2xsOjLTUKuGC+bRMasfwieCKmN1efo53uMP40a32 2/PDPUhey1/4Lrw1y/D922uwMgf/T4JdUMsX/GRQBsETvyiOw0SzKhIGreN50m1ui8C3 RfsktqkGzjhsqSA/Ra4pTOW1ziEgC1afFeljfHbxMa2DbFr+i0hij9PrUOgOTTkD9o3X oXfUB6mL23Flw27ix7r+JFebGYq4XTJjcLNatf26sntwY0jfBzCfJZmkbw+O5XnFwGTY 9yJXvaBMw45dYb1yaAB3VIroT3tvuQXA/SPQGugywho6A+OUXVMfSInHhbbf4Pu990e8 TgbA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:from:subject:cc:to:message-id:date; bh=YTMrDryZmcv9Mvcl2qa2rfwz+rvhAgy1LQrWpmFZZyE=; b=yBbz/oeR/+0QPE9EFQkFMweq1+EYLinJpFH/fQc54qrrNn6hgvH1l24zmgsaBEKdbm u2WAsEg4Y8ntifvzDc/aqCkWQ++E6HHag5J6EhxtnrQsY0UfI01Yl4F9pi2oQjWAfcR9 5mXL4Y2/nINH4wevcpj18X0oDT4rMW5unDREtlZFLzs0e5wqo9W/NbF6fujM8ckNYl7H iwTTOgdkJ6+qOpxDhyBDaEvURzKvzVkc4nBJL2GdfbTtiJOTSCQr1gORZnEpvIJyFD3U vUb11NKlRIQRsDenUQb+MhfTOlCtZNiGzl8/HJQZiOeDLloLPhp3sSCo3ra4bpBLtSLX 4Q2w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id a143-v6si19021965pfd.241.2018.09.17.19.42.32; Mon, 17 Sep 2018 19:42:47 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728722AbeIRILT (ORCPT + 99 others); Tue, 18 Sep 2018 04:11:19 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:54474 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725928AbeIRILS (ORCPT ); Tue, 18 Sep 2018 04:11:18 -0400 Received: from localhost (unknown [104.240.4.228]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id C12B91462E2D6; Mon, 17 Sep 2018 19:40:59 -0700 (PDT) Date: Mon, 17 Sep 2018 19:40:59 -0700 (PDT) Message-Id: <20180917.194059.1970452340378032090.davem@davemloft.net> To: asmadeus@codewreck.org Cc: doronrk@fb.com, tom@quantonium.net, davejwatson@fb.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] kcm: remove any offset before parsing messages From: David Miller In-Reply-To: <20180918015723.GA26300@nautica> References: <20180912053642.GA2912@nautica> <20180917.184502.447385458615284933.davem@davemloft.net> <20180918015723.GA26300@nautica> X-Mailer: Mew version 6.7 on Emacs 26 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 17 Sep 2018 19:41:00 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Dominique Martinet Date: Tue, 18 Sep 2018 03:57:23 +0200 > Given you did reply now I'll try to spend some time to figure that out > in the next couple of weeks but it might not make it for this cycle > depending on the number of rc we'll get and time you want this to soak > it -next. Great. Remind me, is there actually any way for the bpf programs run in this situation to even _see_ strp_msg(skb)->offset at all? There isn't right? And the alternate proposal was to add such a facility, right? Just trying to remember all of the context, maybe it's good information to add to the commit message?