From patchwork Wed Sep 14 03:36:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ian Lin X-Patchwork-Id: 12975542 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0D72AECAAD3 for ; Wed, 14 Sep 2022 03:36:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229700AbiINDgo (ORCPT ); Tue, 13 Sep 2022 23:36:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46308 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229504AbiINDgk (ORCPT ); Tue, 13 Sep 2022 23:36:40 -0400 Received: from smtp3.infineon.com (smtp3.infineon.com [217.10.52.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3C2FB5FAFC for ; Tue, 13 Sep 2022 20:36:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=infineon.com; i=@infineon.com; q=dns/txt; s=IFXMAIL; t=1663126599; x=1694662599; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=q8HJVLuJHxyX4P2FmYokWLh/0ca7blTABDVf3kWFK/I=; b=Qa7oA5yZ43RMO4YF599LgCRnGvKtCUePKKW7CNaBILhp6kDvvA7Bot+R m0SxA8w/clRXhklas14pAItm/BJbyBBqEodkGlUw262VtVcfmXcln14vW n1gBhTxZQVrudtLPk9uoAI7gvzOnGdCEDwlH+bXfX1QWW/HgzfrPL5aM/ 8=; X-SBRS: None X-IronPort-AV: E=McAfee;i="6500,9779,10469"; a="170974" X-IronPort-AV: E=Sophos;i="5.93,313,1654552800"; d="scan'208";a="170974" Received: from unknown (HELO mucxv003.muc.infineon.com) ([172.23.11.20]) by smtp2.infineon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Sep 2022 05:36:37 +0200 Received: from MUCSE803.infineon.com (MUCSE803.infineon.com [172.23.29.29]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mucxv003.muc.infineon.com (Postfix) with ESMTPS for ; Wed, 14 Sep 2022 05:36:37 +0200 (CEST) Received: from MUCSE824.infineon.com (172.23.29.55) by MUCSE803.infineon.com (172.23.29.29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.29; Wed, 14 Sep 2022 05:36:37 +0200 Received: from mailrelay-cypress3.infineon.com (172.23.18.46) by SMTP-MailRelay3.infineon.com (172.23.29.16) with Microsoft SMTP Server id 15.2.986.29; Wed, 14 Sep 2022 05:36:37 +0200 mailrelay-external-outbound: True X-IronPort-AV: E=McAfee;i="6500,9779,10469"; a="258424460" X-IronPort-AV: E=Sophos;i="5.93,313,1654552800"; d="scan'208";a="258424460" Received: from unknown (HELO mail.spansion.com) ([10.248.30.8]) by mailrelay-cypress3.infineon.com with ESMTP; 14 Sep 2022 05:36:36 +0200 Received: from inf2.aus.cypress.com (10.248.80.6) by BIZ-EXHT102.spansion.com (10.248.30.8) with Microsoft SMTP Server id 14.3.498.0; Tue, 13 Sep 2022 22:36:35 -0500 Received: from iot-wlan-dev-u03.aus.cypress.com (iot-wlan-dev-u03 [10.248.81.193]) by inf2.aus.cypress.com (Postfix) with ESMTP id 00B5D10033A; Tue, 13 Sep 2022 22:36:35 -0500 (CDT) Received: by iot-wlan-dev-u03.aus.cypress.com (Postfix, from userid 27991) id F275A980794; Tue, 13 Sep 2022 22:36:34 -0500 (CDT) From: Ian Lin To: CC: , , , , , , Subject: [PATCH 2/5] brcmfmac: Fix for when connect request is not success Date: Tue, 13 Sep 2022 22:36:17 -0500 Message-ID: <20220914033620.12742-3-ian.lin@infineon.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20220914033620.12742-1-ian.lin@infineon.com> References: <20220914033620.12742-1-ian.lin@infineon.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Wataru Gohda Currently brcmfmac is expecting to be set for both BRCMF_VIF_STATUS_EAP_SUCCESS and BRCMF_VIF_STATUS_EAP status bit based on dongle event and those bits are cleared to complete connect request successfully. But when connect request is finished unsuccessfully, either BRCMF_VIF_STATUS_EAP_SUCCESS / BRCMF_VIF_STATUS_EAP bits are not cleared depending on how the connect fail event happens. These status bits are carried over to following new connect request and this will lead to generate below kernel warning for some case. Worst case status mismatch happens between dongle and wpa_supplicant. WARNING: ../net/wireless/sme.c:756 __cfg80211_connect_result+0x42c/0x4a0 [cfg80211] The fix is to clear the BRCMF_VIF_STATUS_EAP_SUCCESS / BRCMF_VIF_STATUS_EAP bits during the link down process and add to call link down process when link down event received during BRCMF_VIF_STATUS_CONNECTING as well as BRCMF_VIF_STATUS_CONNECTED state. Signed-off-by: Wataru Gohda Signed-off-by: Chi-hsien Lin Signed-off-by: Ian Lin --- .../broadcom/brcm80211/brcmfmac/cfg80211.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index 7c72ea26a7d7..7e9354768cfe 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -1417,6 +1417,8 @@ static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason, locally_generated, GFP_KERNEL); } clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state); + clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state); + clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state); clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0); if (vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_NONE) { @@ -2269,6 +2271,8 @@ brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev, clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state); clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); + clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &ifp->vif->sme_state); + clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &ifp->vif->sme_state); cfg80211_disconnected(ndev, reason_code, NULL, 0, true, GFP_KERNEL); memcpy(&scbval.ea, &profile->bssid, ETH_ALEN); @@ -6063,6 +6067,10 @@ brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg, &ifp->vif->sme_state); conn_params.status = WLAN_STATUS_SUCCESS; } else { + clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, + &ifp->vif->sme_state); + clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, + &ifp->vif->sme_state); conn_params.status = WLAN_STATUS_AUTH_TIMEOUT; } conn_params.links[0].bssid = profile->bssid; @@ -6160,9 +6168,13 @@ brcmf_notify_connect_status(struct brcmf_if *ifp, } else if (brcmf_is_linkdown(ifp->vif, e)) { brcmf_dbg(CONN, "Linkdown\n"); if (!brcmf_is_ibssmode(ifp->vif) && - test_bit(BRCMF_VIF_STATUS_CONNECTED, - &ifp->vif->sme_state)) { - if (memcmp(profile->bssid, e->addr, ETH_ALEN)) + (test_bit(BRCMF_VIF_STATUS_CONNECTED, + &ifp->vif->sme_state) || + test_bit(BRCMF_VIF_STATUS_CONNECTING, + &ifp->vif->sme_state))) { + if (test_bit(BRCMF_VIF_STATUS_CONNECTED, + &ifp->vif->sme_state) && + memcmp(profile->bssid, e->addr, ETH_ALEN)) return err; brcmf_bss_connect_done(cfg, ndev, e, false);