From patchwork Fri Apr 12 11:57:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ping-Ke Shih X-Patchwork-Id: 789263 Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 48AAB56443 for ; Fri, 12 Apr 2024 11:59:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712923161; cv=none; b=oudmtMJK9WwJJkP3fN5EibCKtEWvwGIi2TtBA9tuIWxy+VUEk3ISG5p2Oy+mDrEQwCK8rrQFn681+MpILQ9OaEp8TXu3brfh8M9kl0zmWHWdHPSQNptmVT3QFYmyXR+yOYsrUOk68ULF7wrfydz/eDxMZYT/+F+WXSYryTJxN1c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712923161; c=relaxed/simple; bh=IhGLo7jupCS3fnEyeeNifOj2LWvdRlhjw4RgDhV86UE=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ljPC0qXjlOR6z38tWgDGZiJCkQeFnwFeH7g6lfRYDSB5NQuuGIu7+zJfD/VG9PsEJbd/oC+T63GmZDZLCdk2j4fPGKz9pgZLr8BYlDzxP9P9q+IEzzw45Y6/jgUcx8xBNRr/KrA5efurIQBRetmG+jiX4erxfyiD97U70ILZlO0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 43CBxFCw92093242, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36505.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 43CBxFCw92093242 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 12 Apr 2024 19:59:15 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36505.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 12 Apr 2024 19:59:16 +0800 Received: from [127.0.1.1] (172.16.17.25) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 12 Apr 2024 19:59:15 +0800 From: Ping-Ke Shih To: CC: Subject: [PATCH 2/8] wifi: rtw89: fw: scan offload prohibit all 6 GHz channel if no 6 GHz sband Date: Fri, 12 Apr 2024 19:57:23 +0800 Message-ID: <20240412115729.8316-3-pkshih@realtek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240412115729.8316-1-pkshih@realtek.com> References: <20240412115729.8316-1-pkshih@realtek.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXMBS02.realtek.com.tw (172.21.6.95) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-KSE-ServerInfo: RTEXH36505.realtek.com.tw, 9 X-KSE-AntiSpam-Interceptor-Info: fallback X-KSE-Antivirus-Interceptor-Info: fallback X-KSE-AntiSpam-Interceptor-Info: fallback From: Zong-Zhe Yang We have some policy via BIOS to block uses of 6 GHz. In this case, 6 GHz sband will be NULL even if it is WiFi 7 chip. So, add NULL handling here to avoid crash. Signed-off-by: Zong-Zhe Yang Signed-off-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw89/fw.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/realtek/rtw89/fw.c b/drivers/net/wireless/realtek/rtw89/fw.c index 74d0d515ada0..d9ab781fa0e6 100644 --- a/drivers/net/wireless/realtek/rtw89/fw.c +++ b/drivers/net/wireless/realtek/rtw89/fw.c @@ -4689,6 +4689,10 @@ static void rtw89_scan_get_6g_disabled_chan(struct rtw89_dev *rtwdev, u8 i, idx; sband = rtwdev->hw->wiphy->bands[NL80211_BAND_6GHZ]; + if (!sband) { + option->prohib_chan = U64_MAX; + return; + } for (i = 0; i < sband->n_channels; i++) { chan = &sband->channels[i];