From patchwork Wed Mar 11 17:19:29 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicholas Mc Guire X-Patchwork-Id: 5987871 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id DA845BF90F for ; Wed, 11 Mar 2015 17:24:35 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 15EB220379 for ; Wed, 11 Mar 2015 17:24:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 31E7E20375 for ; Wed, 11 Mar 2015 17:24:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751553AbbCKRYS (ORCPT ); Wed, 11 Mar 2015 13:24:18 -0400 Received: from www.osadl.org ([62.245.132.105]:58035 "EHLO www.osadl.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750820AbbCKRYR (ORCPT ); Wed, 11 Mar 2015 13:24:17 -0400 Received: from debian.hofrr.at (92-243-35-153.adsl.nanet.at [92.243.35.153] (may be forged)) by www.osadl.org (8.13.8/8.13.8/OSADL-2007092901) with ESMTP id t2BHNeBB006904; Wed, 11 Mar 2015 18:23:40 +0100 From: Nicholas Mc Guire To: Kalle Valo Cc: Valdis.Kletnieks@vt.edu, Bj??rn Mork , ath10k@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Nicholas Mc Guire Subject: [PATCH 1/2 RFC] ath10k: move code out of the parameter list Date: Wed, 11 Mar 2015 13:19:29 -0400 Message-Id: <1426094369-10213-1-git-send-email-hofrat@osadl.org> X-Mailer: git-send-email 1.7.10.4 X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org 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 Putting code into the parameter list of wait_event_timeout() might be legal C-code but not really readable - the "inline" code is simply moved into a function and that passed to wait_event_timeout() as the condition. Signed-off-by: Nicholas Mc Guire --- Thanks to Bjorn Mork for clarifying my initial confusion ! Patch was only compile tested with x86_64_defconfig + CONFIG_ATH_CARDS=m, CONFIG_ATH10K=m Patch is against 4.0-rc3 (localversion-next is -next-20150311) drivers/net/wireless/ath/ath10k/mac.c | 32 ++++++++++++++++++-------------- 1 file changed, 18 insertions(+), 14 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index e8cc19f..7b27d99 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -4463,11 +4463,25 @@ static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value) return ret; } +static bool check_htt_state(struct ath10k *ar, bool skip) +{ + bool empty; + + spin_lock_bh(&ar->htt.tx_lock); + empty = (ar->htt.num_pending_tx == 0); + spin_unlock_bh(&ar->htt.tx_lock); + + skip = (ar->state == ATH10K_STATE_WEDGED) || + test_bit(ATH10K_FLAG_CRASH_FLUSH, + &ar->dev_flags); + return (empty || skip); +} + static void ath10k_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u32 queues, bool drop) { struct ath10k *ar = hw->priv; - bool skip; + bool skip = false; int ret; /* mac80211 doesn't care if we really xmit queued frames or not @@ -4480,19 +4494,9 @@ static void ath10k_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, if (ar->state == ATH10K_STATE_WEDGED) goto skip; - ret = wait_event_timeout(ar->htt.empty_tx_wq, ({ - bool empty; - - spin_lock_bh(&ar->htt.tx_lock); - empty = (ar->htt.num_pending_tx == 0); - spin_unlock_bh(&ar->htt.tx_lock); - - skip = (ar->state == ATH10K_STATE_WEDGED) || - test_bit(ATH10K_FLAG_CRASH_FLUSH, - &ar->dev_flags); - - (empty || skip); - }), ATH10K_FLUSH_TIMEOUT_HZ); + ret = wait_event_timeout(ar->htt.empty_tx_wq, + check_htt_state(ar, skip), + ATH10K_FLUSH_TIMEOUT_HZ); if (ret <= 0 || skip) ath10k_warn(ar, "failed to flush transmit queue (skip %i ar-state %i): %i\n",