From mboxrd@z Thu Jan 1 00:00:00 1970 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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 39715C43331 for ; Wed, 23 Dec 2020 02:43:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1BA95225AA for ; Wed, 23 Dec 2020 02:43:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729889AbgLWCXF (ORCPT ); Tue, 22 Dec 2020 21:23:05 -0500 Received: from mail.kernel.org ([198.145.29.99]:51318 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729870AbgLWCXD (ORCPT ); Tue, 22 Dec 2020 21:23:03 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id A6BC0225AB; Wed, 23 Dec 2020 02:22:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1608690165; bh=+q+gSVCRGwd6pCl4K2v/dH+8UUl1ZK+npmBeqtDjgck=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=B+5LD3Maws5ZC/WBttyYWrHi42HsxEZd3rLspncMASS+U+yJ1jC72TeKqH8nsJYxn hPRAQvXz248a7HVRjfAptYQfAwmCyixXMxn3m6Z7yjfrqwpQv376w7hscon6fJHPJo 9qVYVn1VTvtGXLdSMdU+FeT0KBvR2/Hxm2Sn5i/ipbaKwEAV8zo8FuIi1X6PT4zsbq VkTX91q4mW8Dzl7KOEUfDraJbWqwhl6CMCzxgA3iScg991xAVsnhY+6m2E9v8NBqrW iWTGWZ/fZsfcxzrzHzfdAfQTUql9KI+KRit+3pfVeT7bTh3qaGfxHzcICotV2SmX5l inJFzaaNmJluA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Ilan Peer , Luca Coelho , Johannes Berg , Sasha Levin , linux-wireless@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 82/87] mac80211: Fix calculation of minimal channel width Date: Tue, 22 Dec 2020 21:20:58 -0500 Message-Id: <20201223022103.2792705-82-sashal@kernel.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201223022103.2792705-1-sashal@kernel.org> References: <20201223022103.2792705-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Ilan Peer [ Upstream commit bbf31e88df2f5da20ce613c340ce508d732046b3 ] When calculating the minimal channel width for channel context, the current operation Rx channel width of a station was used and not the overall channel width capability of the station, i.e., both for Tx and Rx. Fix ieee80211_get_sta_bw() to use the maximal channel width the station is capable. While at it make the function static. Signed-off-by: Ilan Peer Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20201206145305.4387040b99a0.I74bcf19238f75a5960c4098b10e355123d933281@changeid Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- net/mac80211/chan.c | 10 ++++++---- net/mac80211/ieee80211_i.h | 1 - 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index d9558ffb8acf7..b58813568c9ff 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -190,11 +190,13 @@ ieee80211_find_reservation_chanctx(struct ieee80211_local *local, return NULL; } -enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta) +static enum nl80211_chan_width ieee80211_get_sta_bw(struct sta_info *sta) { - switch (sta->bandwidth) { + enum ieee80211_sta_rx_bandwidth width = ieee80211_sta_cap_rx_bw(sta); + + switch (width) { case IEEE80211_STA_RX_BW_20: - if (sta->ht_cap.ht_supported) + if (sta->sta.ht_cap.ht_supported) return NL80211_CHAN_WIDTH_20; else return NL80211_CHAN_WIDTH_20_NOHT; @@ -231,7 +233,7 @@ ieee80211_get_max_required_bw(struct ieee80211_sub_if_data *sdata) !(sta->sdata->bss && sta->sdata->bss == sdata->bss)) continue; - max_bw = max(max_bw, ieee80211_get_sta_bw(&sta->sta)); + max_bw = max(max_bw, ieee80211_get_sta_bw(sta)); } rcu_read_unlock(); diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 43edb903be693..285a541549aaa 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -2165,7 +2165,6 @@ int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, enum ieee80211_chanctx_mode chanmode, u8 radar_detect); int ieee80211_max_num_channels(struct ieee80211_local *local); -enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta); void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, struct ieee80211_chanctx *ctx); -- 2.27.0