From patchwork Tue Sep 14 19:59:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Jonas_Dre=C3=9Fler?= X-Patchwork-Id: 12494535 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 X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 CD141C433EF for ; Tue, 14 Sep 2021 19:59:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B19F461166 for ; Tue, 14 Sep 2021 19:59:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233243AbhINUAo (ORCPT ); Tue, 14 Sep 2021 16:00:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60340 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233263AbhINUAo (ORCPT ); Tue, 14 Sep 2021 16:00:44 -0400 Received: from mout-p-101.mailbox.org (mout-p-101.mailbox.org [IPv6:2001:67c:2050::465:101]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 55BCEC061574; Tue, 14 Sep 2021 12:59:26 -0700 (PDT) Received: from smtp1.mailbox.org (smtp1.mailbox.org [80.241.60.240]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-101.mailbox.org (Postfix) with ESMTPS id 4H8DhD0b9RzQkBj; Tue, 14 Sep 2021 21:59:24 +0200 (CEST) X-Virus-Scanned: amavisd-new at heinlein-support.de From: =?utf-8?q?Jonas_Dre=C3=9Fler?= To: Amitkumar Karwar , Ganapathi Bhat , Sharvari Harisangam , Xinming Hu , Kalle Valo , "David S. Miller" , Jakub Kicinski Cc: =?utf-8?q?Jonas_Dre=C3=9Fler?= , Tsuchiya Yuto , linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Maximilian Luz , Andy Shevchenko , =?utf-8?q?Pali_Roh?= =?utf-8?q?=C3=A1r?= Subject: [PATCH 1/9] mwifiex: Small cleanup for handling virtual interface type changes Date: Tue, 14 Sep 2021 21:59:01 +0200 Message-Id: <20210914195909.36035-2-verdre@v0yd.nl> In-Reply-To: <20210914195909.36035-1-verdre@v0yd.nl> References: <20210914195909.36035-1-verdre@v0yd.nl> MIME-Version: 1.0 X-Rspamd-Queue-Id: 356F11898 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Handle the obvious invalid virtual interface type changes with a general check instead of looking at the individual change. For type changes from P2P_CLIENT to P2P_GO and the other way round, this changes the behavior slightly: We now still do nothing, but return -EOPNOTSUPP instead of 0. Now that behavior was incorrect before and still is, because type changes between these two types are actually possible and supported, which we'll fix in a following commit. Signed-off-by: Jonas Dreßler --- .../net/wireless/marvell/mwifiex/cfg80211.c | 39 +++++++------------ 1 file changed, 14 insertions(+), 25 deletions(-) diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c index 0961f4a5e415..e8deba119ff1 100644 --- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c +++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c @@ -1141,6 +1141,20 @@ mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, return -EBUSY; } + if (type == NL80211_IFTYPE_UNSPECIFIED) { + mwifiex_dbg(priv->adapter, INFO, + "%s: no new type specified, keeping old type %d\n", + dev->name, curr_iftype); + return 0; + } + + if (curr_iftype == type) { + mwifiex_dbg(priv->adapter, INFO, + "%s: interface already is of type %d\n", + dev->name, curr_iftype); + return 0; + } + switch (curr_iftype) { case NL80211_IFTYPE_ADHOC: switch (type) { @@ -1160,12 +1174,6 @@ mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, case NL80211_IFTYPE_AP: return mwifiex_change_vif_to_ap(dev, curr_iftype, type, params); - case NL80211_IFTYPE_UNSPECIFIED: - mwifiex_dbg(priv->adapter, INFO, - "%s: kept type as IBSS\n", dev->name); - fallthrough; - case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */ - return 0; default: mwifiex_dbg(priv->adapter, ERROR, "%s: changing to %d not supported\n", @@ -1191,12 +1199,6 @@ mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, case NL80211_IFTYPE_AP: return mwifiex_change_vif_to_ap(dev, curr_iftype, type, params); - case NL80211_IFTYPE_UNSPECIFIED: - mwifiex_dbg(priv->adapter, INFO, - "%s: kept type as STA\n", dev->name); - fallthrough; - case NL80211_IFTYPE_STATION: /* This shouldn't happen */ - return 0; default: mwifiex_dbg(priv->adapter, ERROR, "%s: changing to %d not supported\n", @@ -1214,12 +1216,6 @@ mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, case NL80211_IFTYPE_P2P_GO: return mwifiex_change_vif_to_p2p(dev, curr_iftype, type, params); - case NL80211_IFTYPE_UNSPECIFIED: - mwifiex_dbg(priv->adapter, INFO, - "%s: kept type as AP\n", dev->name); - fallthrough; - case NL80211_IFTYPE_AP: /* This shouldn't happen */ - return 0; default: mwifiex_dbg(priv->adapter, ERROR, "%s: changing to %d not supported\n", @@ -1254,13 +1250,6 @@ mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, return -EFAULT; return mwifiex_change_vif_to_ap(dev, curr_iftype, type, params); - case NL80211_IFTYPE_UNSPECIFIED: - mwifiex_dbg(priv->adapter, INFO, - "%s: kept type as P2P\n", dev->name); - fallthrough; - case NL80211_IFTYPE_P2P_CLIENT: - case NL80211_IFTYPE_P2P_GO: - return 0; default: mwifiex_dbg(priv->adapter, ERROR, "%s: changing to %d not supported\n",