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Rodriguez" , linux-wireless@vger.kernel.org Subject: [PATCH] Revert "ath: add support for special 0x0 regulatory domain" Date: Thu, 30 Jul 2020 14:49:23 +0200 Message-Id: <20200730124923.271429-1-alsi@bang-olufsen.dk> X-Mailer: git-send-email 2.27.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-ClientProxiedBy: AM6P193CA0123.EURP193.PROD.OUTLOOK.COM (2603:10a6:209:85::28) To VI1PR03MB3166.eurprd03.prod.outlook.com (2603:10a6:802:32::30) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from capella.home51.bang-olufsen.dk (193.89.194.27) by AM6P193CA0123.EURP193.PROD.OUTLOOK.COM (2603:10a6:209:85::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3239.16 via Frontend Transport; Thu, 30 Jul 2020 12:50:01 +0000 X-Mailer: git-send-email 2.27.0 X-Originating-IP: [193.89.194.27] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: f72f20d2-7dff-484e-afa6-08d8348712de X-MS-TrafficTypeDiagnostic: VI1PR03MB4912: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:5516; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: orfyT46MQ61Mxb5iPWFd2WpDoe+OrogMXwNbSH58bqPcQSs+AFAEM5nNBEsicahGoYrnMWGfU9w/CwrAjpoHHbcnbejzG6V2tckdFMKzv6PKZ5Ki/HIwS2OKeENLP10t31JNMIRKogDiCBrHUWOUO5QCDQbK68Ct71hIHDMMHGjLlbpbnJPzaYFMvZ2ajbVl058NsikCJqtD/jG++Go/P/NMhFqQnrPInSFOIbfLDmr227Zy0CUWZ8S9O1ea5+ZidSr+4FZzJhed1thDqiW8xsLyt53tt/Yog+yK7FdCncVO2F/hbz1nGPtnae6nQML0YKb4JYywUnCYDj/b7XAAKTAFVtEVHuIelvvlpFq99aNMmdSWO0eIwLncDl6dkbSqzLQ+QSgayJ2NtM0n6+pm7A== X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:VI1PR03MB3166.eurprd03.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(136003)(396003)(39850400004)(366004)(376002)(346002)(186003)(26005)(2906002)(16526019)(8976002)(8936002)(15650500001)(8676002)(66574015)(66946007)(52116002)(7696005)(66556008)(66476007)(83380400001)(956004)(2616005)(966005)(478600001)(4326008)(6486002)(6666004)(1076003)(5660300002)(316002)(36756003)(54906003)(6916009)(86362001);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: bang-olufsen.dk X-MS-Exchange-CrossTenant-Network-Message-Id: f72f20d2-7dff-484e-afa6-08d8348712de X-MS-Exchange-CrossTenant-AuthSource: VI1PR03MB3166.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Jul 2020 12:50:01.7757 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 210d08b8-83f7-470a-bc96-381193ca14a1 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: KGlnu4KcPTmoVPJM5zU1e3KtbbBki+c4qKLMxb+i9HoD04LRAGnEllcmz6Js/LIhib0zLZmXD7hztNSXr/9jEA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR03MB4912 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org 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_regulatory_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 Šipraga --- drivers/net/wireless/ath/regd.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c index bee9110b91f3..20f4f8ea9f89 100644 --- a/drivers/net/wireless/ath/regd.c +++ b/drivers/net/wireless/ath/regd.c @@ -666,14 +666,14 @@ ath_regd_init_wiphy(struct ath_regulatory *reg, /* * Some users have reported their EEPROM programmed with - * 0x8000 or 0x0 set, this is not a supported regulatory - * domain but since we have more than one user with it we - * need a solution for them. We default to 0x64, which is - * the default Atheros world regulatory domain. + * 0x8000 set, this is not a supported regulatory domain + * but since we have more than one user with it we need + * a solution for them. We default to 0x64, which is the + * default Atheros world regulatory domain. */ static void ath_regd_sanitize(struct ath_regulatory *reg) { - if (reg->current_rd != COUNTRY_ERD_FLAG && reg->current_rd != 0) + if (reg->current_rd != COUNTRY_ERD_FLAG) return; printk(KERN_DEBUG "ath: EEPROM regdomain sanitized\n"); reg->current_rd = 0x64; -- 2.27.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-am6eur05on2120.outbound.protection.outlook.com ([40.107.22.120] helo=EUR05-AM6-obe.outbound.protection.outlook.com) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k180d-0006NY-EB for ath10k@lists.infradead.org; Thu, 30 Jul 2020 12:50:08 +0000 From: =?UTF-8?q?Alvin=20=C5=A0ipraga?= Subject: [PATCH] Revert "ath: add support for special 0x0 regulatory domain" Date: Thu, 30 Jul 2020 14:49:23 +0200 Message-Id: <20200730124923.271429-1-alsi@bang-olufsen.dk> 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: ath10k@lists.infradead.org Cc: "Luis R . Rodriguez" , Wen Gong , linux-wireless@vger.kernel.org, =?UTF-8?q?Alvin=20=C5=A0ipraga?= VGhpcyByZXZlcnRzIGNvbW1pdCAyZGMwMTY1OTljZmE5NjcyYTE0NzUyOGNhMjZkNzBjMzY1NGE1 NDIzLgoKUGVyIEF0aGVyb3MgZG9jdW1lbnRhdGlvbiB0byBtYW51ZmFjdHVyZXJzLCB0aGUgRUVQ Uk9NIHJlZ3VsYXRvcnkgZG9tYWluCmNvZGUgMHgwIG11c3QgYWx3YXlzIG1hcCB0byAiVVMiLiBJ biBwYXJ0aWN1bGFyLCBpdCBzaG91bGQgbm90IG1hcCB0byBhCmN1c3RvbSB3b3JsZCByZWd1bGF0 b3J5IGRvbWFpbi4gRm9yIHJlZmVyZW5jZXMsIHNlZSBbMV0gYW5kIFsyXSBiZWxvdy4KRnVydGhl cm1vcmUsIF9fYXRoX3JlZ2RfaW5pdCgpIGhhcyBhIHNwZWNpZmljIGNvbmRpdGlvbiB0byBzZXQg dGhlCmNvdW50cnkgY29kZSB0byAiVVMiIGluIHRoaXMgY2FzZSwgd2hpY2ggZW1pdHMgdGhlIGZv bGxvd2luZyBsb2cKbWVzc2FnZToKClsgICAgNy44MTQzMDddIGF0aDogRUVQUk9NIGluZGljYXRl cyBkZWZhdWx0IGNvdW50cnkgY29kZSBzaG91bGQgYmUgdXNlZAoKVGhlIHBhdGNoIGJlaW5nIHJl dmVydGVkIG1pc3Rha2VubHkgbWFwcyAweDAgdG8gdGhlIGN1c3RvbSB3b3JsZApyZWd1bGF0b3J5 IGRvbWFpbiAweDY0IC0gdGhlIG1vc3QgcmVzdHJpY3RpdmUgb2YgdGhlIHdvcmxkIHJlZ3VsYXRv cnkKZG9tYWlucy4gVGhlIHByZW1pc2Ugb2YgdGhlIHBhdGNoIGlzIHRoYXQgaW4gdGhlIGNhc2Ug b2YgRUVQUk9NCnJlZ3VsYXRvcnkgZG9tYWluIGNvZGUgMHgwLCBhdGhfaXNfd29ybGRfcmVnZCgp IHNob3VsZCByZXR1cm4gdHJ1ZS4gQnV0LAphcyBzdGF0ZWQgYWJvdmUsIDB4MCBzaG91bGQgbm90 IG1hcCB0byBhIHdvcmxkIHJlZ3VsYXRvcnkgZG9tYWluLCBhbmQgc28KdGhlIGZ1bmN0aW9uIHNo b3VsZCByZXR1cm4gZmFsc2UuIFRoZSBvcmlnaW5hbCBiZWhhdmlvdXIsIHdoZXJlYnkKTkw4MDIx MV9SRUdET01fU0VUX0JZX0NPVU5UUllfSUUgaXMgaWdub3JlZCwgd2FzIGNvcnJlY3QgYWNjb3Jk aW5nIHRvCnRoZSBtYW51ZmFjdHVyZXIncyBpbnRlbnQgYW5kIHNob3VsZCBub3QgaGF2ZSBiZWVu IGNoYW5nZWQuCgpbMV0gaHR0cHM6Ly93aXJlbGVzcy53aWtpLmtlcm5lbC5vcmcvZW4vdXNlcnMv ZHJpdmVycy9hdGgjdGhlXzB4MF9yZWd1bGF0b3J5X2RvbWFpbgpbMl0gaHR0cDovL2FydGljbGUu Z21hbmUub3JnL2dtYW5lLmxpbnV4Lmtlcm5lbC53aXJlbGVzcy5nZW5lcmFsLzM4NDEwCgpGaXhl czogMmRjMDE2NTk5Y2ZhICgiYXRoOiBhZGQgc3VwcG9ydCBmb3Igc3BlY2lhbCAweDAgcmVndWxh dG9yeSBkb21haW4iKQpDYzogV2VuIEdvbmcgPHdnb25nQGNvZGVhdXJvcmEub3JnPgpDYzogTHVp cyBSLiBSb2RyaWd1ZXogPG1jZ3JvZkBrZXJuZWwub3JnPgpDYzogbGludXgtd2lyZWxlc3NAdmdl ci5rZXJuZWwub3JnClRlc3RlZC1vbjogUUNBOTg4MCBodzIuMCBQQ0kgMTAuMi40LTEuMC0wMDA0 NwpTaWduZWQtb2ZmLWJ5OiBBbHZpbiDFoGlwcmFnYSA8YWxzaUBiYW5nLW9sdWZzZW4uZGs+Ci0t LQogZHJpdmVycy9uZXQvd2lyZWxlc3MvYXRoL3JlZ2QuYyB8IDEwICsrKysrLS0tLS0KIDEgZmls ZSBjaGFuZ2VkLCA1IGluc2VydGlvbnMoKyksIDUgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEv ZHJpdmVycy9uZXQvd2lyZWxlc3MvYXRoL3JlZ2QuYyBiL2RyaXZlcnMvbmV0L3dpcmVsZXNzL2F0 aC9yZWdkLmMKaW5kZXggYmVlOTExMGI5MWYzLi4yMGY0ZjhlYTlmODkgMTAwNjQ0Ci0tLSBhL2Ry aXZlcnMvbmV0L3dpcmVsZXNzL2F0aC9yZWdkLmMKKysrIGIvZHJpdmVycy9uZXQvd2lyZWxlc3Mv YXRoL3JlZ2QuYwpAQCAtNjY2LDE0ICs2NjYsMTQgQEAgYXRoX3JlZ2RfaW5pdF93aXBoeShzdHJ1 Y3QgYXRoX3JlZ3VsYXRvcnkgKnJlZywKIAogLyoKICAqIFNvbWUgdXNlcnMgaGF2ZSByZXBvcnRl ZCB0aGVpciBFRVBST00gcHJvZ3JhbW1lZCB3aXRoCi0gKiAweDgwMDAgb3IgMHgwIHNldCwgdGhp cyBpcyBub3QgYSBzdXBwb3J0ZWQgcmVndWxhdG9yeQotICogZG9tYWluIGJ1dCBzaW5jZSB3ZSBo YXZlIG1vcmUgdGhhbiBvbmUgdXNlciB3aXRoIGl0IHdlCi0gKiBuZWVkIGEgc29sdXRpb24gZm9y IHRoZW0uIFdlIGRlZmF1bHQgdG8gMHg2NCwgd2hpY2ggaXMKLSAqIHRoZSBkZWZhdWx0IEF0aGVy b3Mgd29ybGQgcmVndWxhdG9yeSBkb21haW4uCisgKiAweDgwMDAgc2V0LCB0aGlzIGlzIG5vdCBh IHN1cHBvcnRlZCByZWd1bGF0b3J5IGRvbWFpbgorICogYnV0IHNpbmNlIHdlIGhhdmUgbW9yZSB0 aGFuIG9uZSB1c2VyIHdpdGggaXQgd2UgbmVlZAorICogYSBzb2x1dGlvbiBmb3IgdGhlbS4gV2Ug ZGVmYXVsdCB0byAweDY0LCB3aGljaCBpcyB0aGUKKyAqIGRlZmF1bHQgQXRoZXJvcyB3b3JsZCBy ZWd1bGF0b3J5IGRvbWFpbi4KICAqLwogc3RhdGljIHZvaWQgYXRoX3JlZ2Rfc2FuaXRpemUoc3Ry dWN0IGF0aF9yZWd1bGF0b3J5ICpyZWcpCiB7Ci0JaWYgKHJlZy0+Y3VycmVudF9yZCAhPSBDT1VO VFJZX0VSRF9GTEFHICYmIHJlZy0+Y3VycmVudF9yZCAhPSAwKQorCWlmIChyZWctPmN1cnJlbnRf cmQgIT0gQ09VTlRSWV9FUkRfRkxBRykKIAkJcmV0dXJuOwogCXByaW50ayhLRVJOX0RFQlVHICJh dGg6IEVFUFJPTSByZWdkb21haW4gc2FuaXRpemVkXG4iKTsKIAlyZWctPmN1cnJlbnRfcmQgPSAw eDY0OwotLSAKMi4yNy4wCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KYXRoMTBrIG1haWxpbmcgbGlzdAphdGgxMGtAbGlzdHMuaW5mcmFkZWFkLm9yZwpo dHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2F0aDEwawo=