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[2620:137:e000::1:20]) by mx.google.com with ESMTP id h12-20020a170902f70c00b001a64b2f9a37si14387314plo.118.2023.04.25.03.05.15; Tue, 25 Apr 2023 03:05:25 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@broadcom.com header.s=google header.b=dCicijz6; spf=pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=broadcom.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233361AbjDYKBd (ORCPT + 63 others); Tue, 25 Apr 2023 06:01:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53228 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233255AbjDYKBb (ORCPT ); Tue, 25 Apr 2023 06:01:31 -0400 Received: from mail-wm1-x32d.google.com (mail-wm1-x32d.google.com [IPv6:2a00:1450:4864:20::32d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7B39F7ABF for ; Tue, 25 Apr 2023 03:01:30 -0700 (PDT) Received: by mail-wm1-x32d.google.com with SMTP id 5b1f17b1804b1-3f19afc4fbfso33462245e9.2 for ; Tue, 25 Apr 2023 03:01:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1682416889; x=1685008889; h=subject:from:cc:to:user-agent:mime-version:date:message-id:from:to :cc:subject:date:message-id:reply-to; bh=7ArRcfckMwSU5worh0rLCtRa5bw4n8hQkAebl5UIqVQ=; b=dCicijz6xPrAjKjQebJDmEXnOolYQZvPZOFroBwFG55i2z+kpJotll8peewE1UxI3S CNpehUDr3FmP8HDWUDSAEcxAj6qYh8NXnjNu6lgV8Kyt02JtBA69/l6a37RH/6Sxrpy5 drHVUzkjHQ0f0RYFZf3FBEJrZ4h72L3JsLJMo= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682416889; x=1685008889; h=subject:from:cc:to:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=7ArRcfckMwSU5worh0rLCtRa5bw4n8hQkAebl5UIqVQ=; b=gMEKBjt0D9NHLR/h7vE96D7Hip0B0xB8xZGvE/eyzTHb7jVttjfpC8JM5Fyn5lOFGD cZMseTR7UZ6iK/AAtZeQfyYYSKx8MIAUu4mODyDQEdi4xp+tY51AnG83p9PXEoEfr4vA E+qFW7K6meM9kUGtFrl0Q31pfka8c5ecPby8ma441SZyq/bRAHQkPakRNJGaza1gcmJM VUXZFWsUYOFCAwEM/ru+QFMa7JzhxVXVrVQ3C+vunBTxOAtnkr/kFZKntARVW9QWE8YB q393B9A2Ptccwd6esmnCUwiinTPTQnX3u5+jijKEXCdm/POG8TUmdtczmqKrb9w6mMgI O8Zw== X-Gm-Message-State: AAQBX9dxcm90X7uOxmDibkRaaTz1Syy1wjL1NP+NPoc+zsVTo+p+E/3T L+y3F/2+du6hM3REjOkgJmN+7d0mZbqO2IpnusETUY5L X-Received: by 2002:a05:600c:b5a:b0:3f1:979f:a734 with SMTP id k26-20020a05600c0b5a00b003f1979fa734mr7559894wmr.11.1682416888900; Tue, 25 Apr 2023 03:01:28 -0700 (PDT) Received: from [10.176.68.61] ([192.19.148.250]) by smtp.gmail.com with ESMTPSA id z16-20020a05600c221000b003ee1b2ab9a0sm14501707wml.11.2023.04.25.03.01.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 25 Apr 2023 03:01:28 -0700 (PDT) Message-ID: <9de1cb94-7b60-3d1d-3833-1b08624af645@broadcom.com> Date: Tue, 25 Apr 2023 12:01:27 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 To: Johannes Berg Cc: linux-wireless From: Arend van Spriel Subject: question about struct ieee80211_iface_combination Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="0000000000000b899505fa26357a" X-Spam-Status: No, score=-2.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org --0000000000000b899505fa26357a Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Johannes, My brain is tripping over a field in struct ieee80211_iface_combination, ie. the num_different_channels. Looking at the name I tend to think that num_different_channel = 0 means the interfaces must all operate on the same channel. However, in most places it is configured as 1 or more. The documentation in cfg80211.h [1] is not unambiguous about it in my opinion. By now it probably depends on how user-space uses it. Regards, Arend [1] https://elixir.bootlin.com/linux/latest/source/include/net/cfg80211.h#L4780 --0000000000000b899505fa26357a Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQdwYJKoZIhvcNAQcCoIIQaDCCEGQCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg3OMIIFDTCCA/WgAwIBAgIQeEqpED+lv77edQixNJMdADANBgkqhkiG9w0BAQsFADBMMSAwHgYD VQQLExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UE AxMKR2xvYmFsU2lnbjAeFw0yMDA5MTYwMDAwMDBaFw0yODA5MTYwMDAwMDBaMFsxCzAJBgNVBAYT AkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTEwLwYDVQQDEyhHbG9iYWxTaWduIEdDQyBS MyBQZXJzb25hbFNpZ24gMiBDQSAyMDIwMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA vbCmXCcsbZ/a0fRIQMBxp4gJnnyeneFYpEtNydrZZ+GeKSMdHiDgXD1UnRSIudKo+moQ6YlCOu4t rVWO/EiXfYnK7zeop26ry1RpKtogB7/O115zultAz64ydQYLe+a1e/czkALg3sgTcOOcFZTXk38e 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