From patchwork Mon Mar 11 08:31:07 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Eckelmann X-Patchwork-Id: 10846867 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3567617DF for ; Mon, 11 Mar 2019 08:31:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 21F2328EB8 for ; Mon, 11 Mar 2019 08:31:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 163BD28F78; Mon, 11 Mar 2019 08:31:20 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7C9CA28F72 for ; Mon, 11 Mar 2019 08:31:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726903AbfCKIbS (ORCPT ); Mon, 11 Mar 2019 04:31:18 -0400 Received: from narfation.org ([79.140.41.39]:60802 "EHLO v3-1039.vlinux.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726958AbfCKIbR (ORCPT ); Mon, 11 Mar 2019 04:31:17 -0400 Received: from sven-desktop.home.narfation.org (unknown [IPv6:2001:16b8:55da:29ea::88d]) by v3-1039.vlinux.de (Postfix) with ESMTPSA id 5586911004F; Mon, 11 Mar 2019 09:31:14 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=narfation.org; s=20121; t=1552293074; bh=xFb8JiQCiuT5FeNZmcVrnzIZ4O3Vv0GRfziM4IwjuVM=; h=From:To:Cc:Subject:Date:From; b=BNms+NR1RZg2sbWNflzOdqLu48grHtmk4MvcqO3DQxqT4eMJqOY4xnJzcmSYqtSxf KvZoE/DsUGxJa+sVdWWE1VsOWiwtgj6DUNMnQm3MjyxCoYPat8XHOnGPwLBC0tMPv4 UIrIRmY3p3jtloio5TNusiGoUvv1W740T+KiluGQ= From: Sven Eckelmann To: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, Sven Eckelmann , Kalle Valo , Sriram R Subject: [PATCH] ath10k: avoid leaving .bss_info_changed prematurely Date: Mon, 11 Mar 2019 09:31:07 +0100 Message-Id: <20190311083107.311-1-sven@narfation.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sven Eckelmann ath10k_bss_info_changed() handles various events from the upper layers. It parses the changed bitfield and then configures the driver/firmware accordingly. Each detected event is handled in a separate scope which is independent of each other - but in the same function. The commit f279294e9ee2 ("ath10k: add support for configuring management packet rate") changed this behavior by returning from this function prematurely when some precondition was not fulfilled. All new event handlers added after the BSS_CHANGED_BASIC_RATES event handler would then also be skipped. Signed-off-by: Sven Eckelmann --- Cc: Kalle Valo Cc: Sriram R Only compile tested --- drivers/net/wireless/ath/ath10k/mac.c | 64 ++++++++++++++++----------- 1 file changed, 38 insertions(+), 26 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index b73c23d4ce86..b1d0741c7861 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -5578,6 +5578,40 @@ static void ath10k_configure_filter(struct ieee80211_hw *hw, mutex_unlock(&ar->conf_mutex); } +static void ath10k_recalculate_mgmt_rate(struct ath10k *ar, + struct ieee80211_vif *vif) +{ + struct ath10k_vif *arvif = (void *)vif->drv_priv; + const struct ieee80211_supported_band *sband; + struct cfg80211_chan_def def; + u8 basic_rate_idx; + int hw_rate_code; + u32 vdev_param; + u16 bitrate; + int ret; + + lockdep_assert_held(&ar->conf_mutex); + + if (WARN_ON(ath10k_mac_vif_chan(vif, &def))) + return; + + sband = ar->hw->wiphy->bands[def.chan->band]; + basic_rate_idx = ffs(vif->bss_conf.basic_rates) - 1; + bitrate = sband->bitrates[basic_rate_idx].bitrate; + + hw_rate_code = ath10k_mac_get_rate_hw_value(bitrate); + if (hw_rate_code < 0) { + ath10k_warn(ar, "bitrate not supported %d\n", bitrate); + return; + } + + vdev_param = ar->wmi.vdev_param->mgmt_rate; + ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, + hw_rate_code); + if (ret) + ath10k_warn(ar, "failed to set mgmt tx rate %d\n", ret); +} + static void ath10k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_bss_conf *info, @@ -5588,10 +5622,9 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw, struct cfg80211_chan_def def; u32 vdev_param, pdev_param, slottime, preamble; u16 bitrate, hw_value; - u8 rate, basic_rate_idx; - int rateidx, ret = 0, hw_rate_code; + u8 rate; + int rateidx, ret = 0; enum nl80211_band band; - const struct ieee80211_supported_band *sband; mutex_lock(&ar->conf_mutex); @@ -5811,29 +5844,8 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw, arvif->vdev_id, ret); } - if (changed & BSS_CHANGED_BASIC_RATES) { - if (WARN_ON(ath10k_mac_vif_chan(vif, &def))) { - mutex_unlock(&ar->conf_mutex); - return; - } - - sband = ar->hw->wiphy->bands[def.chan->band]; - basic_rate_idx = ffs(vif->bss_conf.basic_rates) - 1; - bitrate = sband->bitrates[basic_rate_idx].bitrate; - - hw_rate_code = ath10k_mac_get_rate_hw_value(bitrate); - if (hw_rate_code < 0) { - ath10k_warn(ar, "bitrate not supported %d\n", bitrate); - mutex_unlock(&ar->conf_mutex); - return; - } - - vdev_param = ar->wmi.vdev_param->mgmt_rate; - ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, - hw_rate_code); - if (ret) - ath10k_warn(ar, "failed to set mgmt tx rate %d\n", ret); - } + if (changed & BSS_CHANGED_BASIC_RATES) + ath10k_recalculate_mgmt_rate(ar, vif); mutex_unlock(&ar->conf_mutex); }