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=-3.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 01893C4338F for ; Fri, 13 Aug 2021 10:29:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DCB9E60C40 for ; Fri, 13 Aug 2021 10:29:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240125AbhHMKaA (ORCPT ); Fri, 13 Aug 2021 06:30:00 -0400 Received: from so254-9.mailgun.net ([198.61.254.9]:47603 "EHLO so254-9.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239277AbhHMKaA (ORCPT ); Fri, 13 Aug 2021 06:30:00 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1628850573; h=Message-ID: References: In-Reply-To: Subject: Cc: To: From: Date: Content-Transfer-Encoding: Content-Type: MIME-Version: Sender; bh=JMbb3u1CBTlERu7OfhgTVF+ONjo8s0o9ICBhT6ODPf8=; b=WWcUA1B37+YFbyT0x+G056pUv/MDLG8b/inJtjLP7O7Ul+n5Mnge2lLC9xH7IbtU1MNlVUBL aAZ2zgllbNPxxXhA96lKSP0w4zkq8uU3EeEKfrupg3N+C2H1TIfNuG9rQEB5vqT85p+fJZH1 jRmel48T3cI6XQzxOUwd9magIKU= X-Mailgun-Sending-Ip: 198.61.254.9 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n01.prod.us-east-1.postgun.com with SMTP id 6116498c66ff1079042e4b53 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 13 Aug 2021 10:29:32 GMT Sender: wgong=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id C6093C433D3; Fri, 13 Aug 2021 10:29:31 +0000 (UTC) Received: from mail.codeaurora.org (localhost.localdomain [127.0.0.1]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: wgong) by smtp.codeaurora.org (Postfix) with ESMTPSA id 48B69C4338A; Fri, 13 Aug 2021 10:29:31 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Fri, 13 Aug 2021 18:29:31 +0800 From: Wen Gong To: Johannes Berg Cc: ath11k@lists.infradead.org, linux-wireless@vger.kernel.org Subject: Re: [PATCH 9/9] mac80211: save transmit power envelope element and power constraint In-Reply-To: <569d85aec8fecc836b5a6f9d40b53dff6e41c1b1.camel@sipsolutions.net> References: <20210517201932.8860-1-wgong@codeaurora.org> <20210517201932.8860-10-wgong@codeaurora.org> (sfid-20210517_222034_029448_A9A89D57) <1126f8d996e895ae048092b3f8aad19b@codeaurora.org> <38e7d9d2eebafa7245a36a0a0396094526eb3efd.camel@sipsolutions.net> <1273cc1a399a7457c3d908648a7651c8fe9b93f3.camel@sipsolutions.net> <465b6b8535fc17ae51ee2f3116af87bb@codeaurora.org> <569d85aec8fecc836b5a6f9d40b53dff6e41c1b1.camel@sipsolutions.net> Message-ID: <24bcb0c5da824f830f31328781c634b9@codeaurora.org> X-Sender: wgong@codeaurora.org User-Agent: Roundcube Webmail/1.3.9 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On 2021-08-13 18:11, Johannes Berg wrote: > On Fri, 2021-08-13 at 17:16 +0800, Wen Gong wrote: >> >> yes, it should have some flag/logic to check whether it is BIGTK. >> If you know it, you can tell me. :) > > Uh, actually, we don't have a secure indication of BIGTK getting used > until after the 4-way-HS. > >> > >> Yes, the lower driver also have the max power limit itself. If power >> calulated >> from the fake beacon is bigger than the max power limit, then it will >> be >> ignored. > > Right. > >> > >> The Transmit Power Envelope is not existed in the assoc response, it >> is >> existed >> in beacon. So it can not use assoc response. > > Right. > > > Given this discussion, I think we should just leave it as is, and > simply > not assume that the TPE is protected by beacon protection or such. > There > are a number of other similar parameters, and doing some real > protection > at this level would likely require further spec changes. > Thanks. I will leave it as is without change for BIGTK. I will change others patch and send new version. > johannes