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=-6.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 4FB39C433DF for ; Thu, 27 Aug 2020 10:14:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2C0AC207F7 for ; Thu, 27 Aug 2020 10:14:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="uO1XG1Vy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726266AbgH0KOD (ORCPT ); Thu, 27 Aug 2020 06:14:03 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:28178 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726157AbgH0KOD (ORCPT ); Thu, 27 Aug 2020 06:14:03 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1598523242; h=Content-Transfer-Encoding: Content-Type: MIME-Version: Message-ID: In-Reply-To: Date: References: Subject: Cc: To: From: Sender; bh=T0hxNss97w1gKnoS1lwhQb/6iS91tqXpvmxIfynmkys=; b=uO1XG1VyO94RrSIEpf3IlRJ1p6NpqR6QOnJ9oK5FcLxVV6MDWaGBt5WpouheMjZujqVtEUQK fpWVuJMotNSyo3G/3liGyeOWKQqXvCGZVN/TC87PP0xMT8/xM4uv+98rqHmnDCoW4o8iv2Fd yHWC9oZCTsx9Zj8cGqI3DmfxQCg= X-Mailgun-Sending-Ip: 69.72.43.7 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-n02.prod.us-west-2.postgun.com with SMTP id 5f4787162fd6d21f0aa0a943 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Thu, 27 Aug 2020 10:12:38 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 4C4D5C43387; Thu, 27 Aug 2020 10:12:38 +0000 (UTC) Received: from potku.adurom.net (88-114-240-156.elisa-laajakaista.fi [88.114.240.156]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: kvalo) by smtp.codeaurora.org (Postfix) with ESMTPSA id 43BA6C433CB; Thu, 27 Aug 2020 10:12:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 43BA6C433CB Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=kvalo@codeaurora.org From: Kalle Valo To: Alvin =?utf-8?Q?=C5=A0ipraga?= Cc: Wen Gong , "Luis R . Rodriguez" , linux-wireless@vger.kernel.org, ath10k@lists.infradead.org Subject: Re: [PATCH] Revert "ath: add support for special 0x0 regulatory domain" References: <20200730124923.271429-1-alsi@bang-olufsen.dk> Date: Thu, 27 Aug 2020 13:12:34 +0300 In-Reply-To: ("Alvin \=\?utf-8\?Q\?\=C5\=A0ipraga\=22's\?\= message of "Thu, 27 Aug 2020 09:59:20 +0200") Message-ID: <87r1rsbdnx.fsf@codeaurora.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Alvin =C5=A0ipraga writes: > Hi Kalle, > > On 7/30/20 2:49 PM, Alvin =C5=A0ipraga wrote: >> This reverts commit 2dc016599cfa9672a147528ca26d70c3654a5423. >> >> Per Atheros documentation to manufacturers, the EEPROM regulatory domain >> code 0x0 must always map to "US". In particular, it should not map to a >> custom world regulatory domain. For references, see [1] and [2] below. >> Furthermore, __ath_regd_init() has a specific condition to set the >> country code to "US" in this case, which emits the following log >> message: >> >> [ 7.814307] ath: EEPROM indicates default country code should be used >> >> The patch being reverted mistakenly maps 0x0 to the custom world >> regulatory domain 0x64 - the most restrictive of the world regulatory >> domains. The premise of the patch is that in the case of EEPROM >> regulatory domain code 0x0, ath_is_world_regd() should return true. But, >> as stated above, 0x0 should not map to a world regulatory domain, and so >> the function should return false. The original behaviour, whereby >> NL80211_REGDOM_SET_BY_COUNTRY_IE is ignored, was correct according to >> the manufacturer's intent and should not have been changed. >> >> [1] https://wireless.wiki.kernel.org/en/users/drivers/ath#the_0x0_regula= tory_domain >> [2] http://article.gmane.org/gmane.linux.kernel.wireless.general/38410 >> >> Fixes: 2dc016599cfa ("ath: add support for special 0x0 regulatory domain= ") >> Cc: Wen Gong >> Cc: Luis R. Rodriguez >> Cc: linux-wireless@vger.kernel.org >> Tested-on: QCA9880 hw2.0 PCI 10.2.4-1.0-00047 >> Signed-off-by: Alvin =C5=A0ipraga >> --- >> drivers/net/wireless/ath/regd.c | 10 +++++----- >> 1 file changed, 5 insertions(+), 5 deletions(-) > > Do you have any feedback on this patch? No problem if you simply have > not looked yet - I am not sure what kind of lead time to expect on the > list. But without the patch, a (correctly) programmed 0x0 (US) card > will not be able to operate on 5GHz channels without some hacking. I > have cited some references to justify reverting this patch, so I would > like to know if anything further should be done to get this into > future kernels? > > I wonder also if Wen Gong could comment, whose patch I am reverting in > the first place. Maybe there is something I am missing? I'm working on it, I just need to check something internally first. BTW, Brian submitted an identical revert first so I'm planning to use his patch instead of yours: https://patchwork.kernel.org/patch/11573585/ --=20 https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatc= hes From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from m43-7.mailgun.net ([69.72.43.7]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kBEtk-0004oy-Ku for ath10k@lists.infradead.org; Thu, 27 Aug 2020 10:12:49 +0000 From: Kalle Valo Subject: Re: [PATCH] Revert "ath: add support for special 0x0 regulatory domain" References: <20200730124923.271429-1-alsi@bang-olufsen.dk> Date: Thu, 27 Aug 2020 13:12:34 +0300 In-Reply-To: ("Alvin \=\?utf-8\?Q\?\=C5\=A0ipraga\=22's\?\= message of "Thu, 27 Aug 2020 09:59:20 +0200") Message-ID: <87r1rsbdnx.fsf@codeaurora.org> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "ath10k" Errors-To: ath10k-bounces+kvalo=adurom.com@lists.infradead.org To: Alvin =?utf-8?Q?=C5=A0ipraga?= Cc: "Luis R . Rodriguez" , linux-wireless@vger.kernel.org, ath10k@lists.infradead.org, Wen Gong QWx2aW4gxaBpcHJhZ2EgPGFsc2lAYmFuZy1vbHVmc2VuLmRrPiB3cml0ZXM6Cgo+IEhpIEthbGxl LAo+Cj4gT24gNy8zMC8yMCAyOjQ5IFBNLCBBbHZpbiDFoGlwcmFnYSB3cm90ZToKPj4gVGhpcyBy ZXZlcnRzIGNvbW1pdCAyZGMwMTY1OTljZmE5NjcyYTE0NzUyOGNhMjZkNzBjMzY1NGE1NDIzLgo+ Pgo+PiBQZXIgQXRoZXJvcyBkb2N1bWVudGF0aW9uIHRvIG1hbnVmYWN0dXJlcnMsIHRoZSBFRVBS T00gcmVndWxhdG9yeSBkb21haW4KPj4gY29kZSAweDAgbXVzdCBhbHdheXMgbWFwIHRvICJVUyIu IEluIHBhcnRpY3VsYXIsIGl0IHNob3VsZCBub3QgbWFwIHRvIGEKPj4gY3VzdG9tIHdvcmxkIHJl Z3VsYXRvcnkgZG9tYWluLiBGb3IgcmVmZXJlbmNlcywgc2VlIFsxXSBhbmQgWzJdIGJlbG93Lgo+ PiBGdXJ0aGVybW9yZSwgX19hdGhfcmVnZF9pbml0KCkgaGFzIGEgc3BlY2lmaWMgY29uZGl0aW9u IHRvIHNldCB0aGUKPj4gY291bnRyeSBjb2RlIHRvICJVUyIgaW4gdGhpcyBjYXNlLCB3aGljaCBl bWl0cyB0aGUgZm9sbG93aW5nIGxvZwo+PiBtZXNzYWdlOgo+Pgo+PiBbICAgIDcuODE0MzA3XSBh dGg6IEVFUFJPTSBpbmRpY2F0ZXMgZGVmYXVsdCBjb3VudHJ5IGNvZGUgc2hvdWxkIGJlIHVzZWQK Pj4KPj4gVGhlIHBhdGNoIGJlaW5nIHJldmVydGVkIG1pc3Rha2VubHkgbWFwcyAweDAgdG8gdGhl IGN1c3RvbSB3b3JsZAo+PiByZWd1bGF0b3J5IGRvbWFpbiAweDY0IC0gdGhlIG1vc3QgcmVzdHJp Y3RpdmUgb2YgdGhlIHdvcmxkIHJlZ3VsYXRvcnkKPj4gZG9tYWlucy4gVGhlIHByZW1pc2Ugb2Yg dGhlIHBhdGNoIGlzIHRoYXQgaW4gdGhlIGNhc2Ugb2YgRUVQUk9NCj4+IHJlZ3VsYXRvcnkgZG9t YWluIGNvZGUgMHgwLCBhdGhfaXNfd29ybGRfcmVnZCgpIHNob3VsZCByZXR1cm4gdHJ1ZS4gQnV0 LAo+PiBhcyBzdGF0ZWQgYWJvdmUsIDB4MCBzaG91bGQgbm90IG1hcCB0byBhIHdvcmxkIHJlZ3Vs YXRvcnkgZG9tYWluLCBhbmQgc28KPj4gdGhlIGZ1bmN0aW9uIHNob3VsZCByZXR1cm4gZmFsc2Uu IFRoZSBvcmlnaW5hbCBiZWhhdmlvdXIsIHdoZXJlYnkKPj4gTkw4MDIxMV9SRUdET01fU0VUX0JZ X0NPVU5UUllfSUUgaXMgaWdub3JlZCwgd2FzIGNvcnJlY3QgYWNjb3JkaW5nIHRvCj4+IHRoZSBt YW51ZmFjdHVyZXIncyBpbnRlbnQgYW5kIHNob3VsZCBub3QgaGF2ZSBiZWVuIGNoYW5nZWQuCj4+ Cj4+IFsxXSBodHRwczovL3dpcmVsZXNzLndpa2kua2VybmVsLm9yZy9lbi91c2Vycy9kcml2ZXJz L2F0aCN0aGVfMHgwX3JlZ3VsYXRvcnlfZG9tYWluCj4+IFsyXSBodHRwOi8vYXJ0aWNsZS5nbWFu ZS5vcmcvZ21hbmUubGludXgua2VybmVsLndpcmVsZXNzLmdlbmVyYWwvMzg0MTAKPj4KPj4gRml4 ZXM6IDJkYzAxNjU5OWNmYSAoImF0aDogYWRkIHN1cHBvcnQgZm9yIHNwZWNpYWwgMHgwIHJlZ3Vs YXRvcnkgZG9tYWluIikKPj4gQ2M6IFdlbiBHb25nIDx3Z29uZ0Bjb2RlYXVyb3JhLm9yZz4KPj4g Q2M6IEx1aXMgUi4gUm9kcmlndWV6IDxtY2dyb2ZAa2VybmVsLm9yZz4KPj4gQ2M6IGxpbnV4LXdp cmVsZXNzQHZnZXIua2VybmVsLm9yZwo+PiBUZXN0ZWQtb246IFFDQTk4ODAgaHcyLjAgUENJIDEw LjIuNC0xLjAtMDAwNDcKPj4gU2lnbmVkLW9mZi1ieTogQWx2aW4gxaBpcHJhZ2EgPGFsc2lAYmFu Zy1vbHVmc2VuLmRrPgo+PiAtLS0KPj4gICBkcml2ZXJzL25ldC93aXJlbGVzcy9hdGgvcmVnZC5j IHwgMTAgKysrKystLS0tLQo+PiAgIDEgZmlsZSBjaGFuZ2VkLCA1IGluc2VydGlvbnMoKyksIDUg ZGVsZXRpb25zKC0pCj4KPiBEbyB5b3UgaGF2ZSBhbnkgZmVlZGJhY2sgb24gdGhpcyBwYXRjaD8g Tm8gcHJvYmxlbSBpZiB5b3Ugc2ltcGx5IGhhdmUKPiBub3QgbG9va2VkIHlldCAtIEkgYW0gbm90 IHN1cmUgd2hhdCBraW5kIG9mIGxlYWQgdGltZSB0byBleHBlY3Qgb24gdGhlCj4gbGlzdC4gQnV0 IHdpdGhvdXQgdGhlIHBhdGNoLCBhIChjb3JyZWN0bHkpIHByb2dyYW1tZWQgMHgwIChVUykgY2Fy ZAo+IHdpbGwgbm90IGJlIGFibGUgdG8gb3BlcmF0ZSBvbiA1R0h6IGNoYW5uZWxzIHdpdGhvdXQg c29tZSBoYWNraW5nLiBJCj4gaGF2ZSBjaXRlZCBzb21lIHJlZmVyZW5jZXMgdG8ganVzdGlmeSBy ZXZlcnRpbmcgdGhpcyBwYXRjaCwgc28gSSB3b3VsZAo+IGxpa2UgdG8ga25vdyBpZiBhbnl0aGlu ZyBmdXJ0aGVyIHNob3VsZCBiZSBkb25lIHRvIGdldCB0aGlzIGludG8KPiBmdXR1cmUga2VybmVs cz8KPgo+IEkgd29uZGVyIGFsc28gaWYgV2VuIEdvbmcgY291bGQgY29tbWVudCwgd2hvc2UgcGF0 Y2ggSSBhbSByZXZlcnRpbmcgaW4KPiB0aGUgZmlyc3QgcGxhY2UuIE1heWJlIHRoZXJlIGlzIHNv bWV0aGluZyBJIGFtIG1pc3Npbmc/CgpJJ20gd29ya2luZyBvbiBpdCwgSSBqdXN0IG5lZWQgdG8g Y2hlY2sgc29tZXRoaW5nIGludGVybmFsbHkgZmlyc3QuCgpCVFcsIEJyaWFuIHN1Ym1pdHRlZCBh biBpZGVudGljYWwgcmV2ZXJ0IGZpcnN0IHNvIEknbSBwbGFubmluZyB0byB1c2UKaGlzIHBhdGNo IGluc3RlYWQgb2YgeW91cnM6CgpodHRwczovL3BhdGNod29yay5rZXJuZWwub3JnL3BhdGNoLzEx NTczNTg1LwoKLS0gCmh0dHBzOi8vd2lyZWxlc3Mud2lraS5rZXJuZWwub3JnL2VuL2RldmVsb3Bl cnMvZG9jdW1lbnRhdGlvbi9zdWJtaXR0aW5ncGF0Y2hlcwoKX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX18KYXRoMTBrIG1haWxpbmcgbGlzdAphdGgxMGtAbGlz dHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3Rp bmZvL2F0aDEwawo=