From patchwork Fri Jun 19 14:33:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 223642 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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 CD0D2C433DF for ; Fri, 19 Jun 2020 16:50:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A9A3D206B7 for ; Fri, 19 Jun 2020 16:50:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592585447; bh=se+Q4k5Btw+HJigqqx9lLs6qFSbEWJIzh+4yhN0UvOc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=k7XS6Zy3T/+EiXvLUNGArWpWEkbHsgtzjpLM9bxrzG0AvfSXv0fTrOBSTn9u7uT0d YKmE4ze6tze83s9ZsXLvVr7xDVu+FLTKbVDnpB43OnU1DUtP2HQx1oGfCOYbq03tum Wy96C6a/Y9XACHu/+JMZr7guF4DL2KLI2MPzaG/Q= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387902AbgFSQue (ORCPT ); Fri, 19 Jun 2020 12:50:34 -0400 Received: from mail.kernel.org ([198.145.29.99]:55864 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387440AbgFSOin (ORCPT ); Fri, 19 Jun 2020 10:38:43 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0365B208B8; Fri, 19 Jun 2020 14:38:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592577523; bh=se+Q4k5Btw+HJigqqx9lLs6qFSbEWJIzh+4yhN0UvOc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tVEn99V/IIvlBKYBPGT72nXkxpPC9YtLUPfWcVtg9cw6PHHw0KZYXTKIykHWIGAn7 hhz9xjWvbiQBKmXSfdo4MdeobmP8x3vCrgaJRxy2I/9Q6/Yhs/npdwK+i7zld1hN4v 7JKIazquVDCeviHO0+1OqZ6Q760jC3XbXDUh4E0I= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?utf-8?q?Frank_Sch=C3=A4fer?= , Christian Lamparter , Kalle Valo Subject: [PATCH 4.4 084/101] carl9170: remove P2P_GO support Date: Fri, 19 Jun 2020 16:33:13 +0200 Message-Id: <20200619141618.373767359@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200619141614.001544111@linuxfoundation.org> References: <20200619141614.001544111@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Christian Lamparter commit b14fba7ebd04082f7767a11daea7f12f3593de22 upstream. This patch follows up on a bug-report by Frank Schäfer that discovered P2P GO wasn't working with wpa_supplicant. This patch removes part of the broken P2P GO support but keeps the vif switchover code in place. Cc: Link: Reported-by: Frank Schäfer Signed-off-by: Christian Lamparter Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20200425092811.9494-1-chunkeey@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/ath/carl9170/fw.c | 4 +--- drivers/net/wireless/ath/carl9170/main.c | 21 ++++----------------- 2 files changed, 5 insertions(+), 20 deletions(-) --- a/drivers/net/wireless/ath/carl9170/fw.c +++ b/drivers/net/wireless/ath/carl9170/fw.c @@ -351,9 +351,7 @@ static int carl9170_fw(struct ar9170 *ar ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC); if (SUPP(CARL9170FW_WLANTX_CAB)) { - if_comb_types |= - BIT(NL80211_IFTYPE_AP) | - BIT(NL80211_IFTYPE_P2P_GO); + if_comb_types |= BIT(NL80211_IFTYPE_AP); #ifdef CONFIG_MAC80211_MESH if_comb_types |= --- a/drivers/net/wireless/ath/carl9170/main.c +++ b/drivers/net/wireless/ath/carl9170/main.c @@ -582,11 +582,10 @@ static int carl9170_init_interface(struc ar->disable_offload |= ((vif->type != NL80211_IFTYPE_STATION) && (vif->type != NL80211_IFTYPE_AP)); - /* While the driver supports HW offload in a single - * P2P client configuration, it doesn't support HW - * offload in the favourit, concurrent P2P GO+CLIENT - * configuration. Hence, HW offload will always be - * disabled for P2P. + /* The driver used to have P2P GO+CLIENT support, + * but since this was dropped and we don't know if + * there are any gremlins lurking in the shadows, + * so best we keep HW offload disabled for P2P. */ ar->disable_offload |= vif->p2p; @@ -639,18 +638,6 @@ static int carl9170_op_add_interface(str if (vif->type == NL80211_IFTYPE_STATION) break; - /* P2P GO [master] use-case - * Because the P2P GO station is selected dynamically - * by all participating peers of a WIFI Direct network, - * the driver has be able to change the main interface - * operating mode on the fly. - */ - if (main_vif->p2p && vif->p2p && - vif->type == NL80211_IFTYPE_AP) { - old_main = main_vif; - break; - } - err = -EBUSY; rcu_read_unlock();