From patchwork Fri Mar 5 12:21:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 394152 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=-23.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 1870EC43381 for ; Fri, 5 Mar 2021 12:36:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ED88265035 for ; Fri, 5 Mar 2021 12:36:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231812AbhCEMfb (ORCPT ); Fri, 5 Mar 2021 07:35:31 -0500 Received: from mail.kernel.org ([198.145.29.99]:46704 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230054AbhCEMfA (ORCPT ); Fri, 5 Mar 2021 07:35:00 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4C9316501B; Fri, 5 Mar 2021 12:34:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614947700; bh=+/remy9VZUtk6rBgKhqlx0i91ROeDpESHj11RFu21QY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dQie8WSljsqF0cT7vP1283Zi/aogr1zpzYY/xptNYZp0OliQHG+ODcywNO3HolpzR bgJsCNaVlKwpO08HjJVMjpZSzjDIwHDxmz8orNUILSOo/m1PZI7bwEdslbvK3hzcEs /lbAADKv73lHZ/gmh8ODegm/a29iDYWedm1eA8zM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Marek Vasut , Angus Ainslie , "David S. Miller" , Jakub Kicinski , Kalle Valo , Lee Jones , Martin Kepplinger , Sebastian Krzyszkowiak , Siva Rebbagondla , linux-wireless@vger.kernel.org, netdev@vger.kernel.org, Sasha Levin Subject: [PATCH 5.4 25/72] rsi: Fix TX EAPOL packet handling against iwlwifi AP Date: Fri, 5 Mar 2021 13:21:27 +0100 Message-Id: <20210305120858.580239724@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210305120857.341630346@linuxfoundation.org> References: <20210305120857.341630346@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Marek Vasut [ Upstream commit 65277100caa2f2c62b6f3c4648b90d6f0435f3bc ] In case RSI9116 SDIO WiFi operates in STA mode against Intel 9260 in AP mode, the association fails. The former is using wpa_supplicant during association, the later is set up using hostapd: iwl$ cat hostapd.conf interface=wlp1s0 ssid=test country_code=DE hw_mode=g channel=1 wpa=2 wpa_passphrase=test wpa_key_mgmt=WPA-PSK iwl$ hostapd -d hostapd.conf rsi$ wpa_supplicant -i wlan0 -c <(wpa_passphrase test test) The problem is that the TX EAPOL data descriptor RSI_DESC_REQUIRE_CFM_TO_HOST flag and extended descriptor EAPOL4_CONFIRM frame type are not set in case the AP is iwlwifi, because in that case the TX EAPOL packet is 2 bytes shorter. The downstream vendor driver has this change in place already [1], however there is no explanation for it, neither is there any commit history from which such explanation could be obtained. [1] https://github.com/SiliconLabs/RS911X-nLink-OSD/blob/master/rsi/rsi_91x_hal.c#L238 Signed-off-by: Marek Vasut Cc: Angus Ainslie Cc: David S. Miller Cc: Jakub Kicinski Cc: Kalle Valo Cc: Lee Jones Cc: Martin Kepplinger Cc: Sebastian Krzyszkowiak Cc: Siva Rebbagondla Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20201015111616.429220-1-marex@denx.de Signed-off-by: Sasha Levin --- drivers/net/wireless/rsi/rsi_91x_hal.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/rsi/rsi_91x_hal.c b/drivers/net/wireless/rsi/rsi_91x_hal.c index 6f8d5f9a9f7e..a07304405b2c 100644 --- a/drivers/net/wireless/rsi/rsi_91x_hal.c +++ b/drivers/net/wireless/rsi/rsi_91x_hal.c @@ -248,7 +248,8 @@ int rsi_prepare_data_desc(struct rsi_common *common, struct sk_buff *skb) rsi_set_len_qno(&data_desc->len_qno, (skb->len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q); - if ((skb->len - header_size) == EAPOL4_PACKET_LEN) { + if (((skb->len - header_size) == EAPOL4_PACKET_LEN) || + ((skb->len - header_size) == EAPOL4_PACKET_LEN - 2)) { data_desc->misc_flags |= RSI_DESC_REQUIRE_CFM_TO_HOST; xtend_desc->confirm_frame_type = EAPOL4_CONFIRM;