From patchwork Thu Mar 12 15:49:22 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: 5996801 Return-Path: X-Original-To: patchwork-ath10k@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 B7879BF90F for ; Thu, 12 Mar 2015 15:54:04 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D37282035B for ; Thu, 12 Mar 2015 15:54:03 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 032DF200EC for ; Thu, 12 Mar 2015 15:54:03 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YW5Qt-0001Lm-Q4; Thu, 12 Mar 2015 15:53:59 +0000 Received: from www.osadl.org ([62.245.132.105]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YW5Qr-0001F2-KI for ath10k@lists.infradead.org; Thu, 12 Mar 2015 15:53:58 +0000 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 t2CFrVSf005864; Thu, 12 Mar 2015 16:53:31 +0100 From: Nicholas Mc Guire To: Kalle Valo Subject: [PATCH 2/3 RFC] ath10k: wmi: match wait_for_completion_timeout return type Date: Thu, 12 Mar 2015 11:49:22 -0400 Message-Id: <1426175362-8640-1-git-send-email-hofrat@osadl.org> X-Mailer: git-send-email 1.7.10.4 X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150312_085358_000476_4DCB82E1 X-CRM114-Status: UNSURE ( 9.65 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.7 (/) Cc: netdev@vger.kernel.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, ath10k@lists.infradead.org, Nicholas Mc Guire X-BeenThere: ath10k@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "ath10k" Errors-To: ath10k-bounces+patchwork-ath10k=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Return type of wait_for_completion_timeout is unsigned long not int. An appropriately named unsigned long is added and the assignments fixed up. Rather than returning 0 (timeout) or a more or less random remaining time (completion success) this return 0 or 1 which also resolves the type of the functions being int. Signed-off-by: Nicholas Mc Guire --- Checking the call-sites of ath10k_wmi_wait_for_unified_ready and ath10k_wmi_wait_for_service_ready the positive return value (remaining time in jiffies) is never passed up the call-chain nor used so it is cleaner to treat this like a boolean success/fail only (actually the two functions should probably be of type bool - but that does not seem to be common practice in the ath10k code base) 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-20150312) : drivers/net/wireless/ath/ath10k/wmi.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index c7ea77e..a1cdcba 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -884,20 +884,24 @@ void ath10k_wmi_put_wmi_channel(struct wmi_channel *ch, int ath10k_wmi_wait_for_service_ready(struct ath10k *ar) { - int ret; + unsigned long time_left; - ret = wait_for_completion_timeout(&ar->wmi.service_ready, - WMI_SERVICE_READY_TIMEOUT_HZ); - return ret; + time_left = wait_for_completion_timeout(&ar->wmi.service_ready, + WMI_SERVICE_READY_TIMEOUT_HZ); + if(!time_left) + return 0; + return 1; } int ath10k_wmi_wait_for_unified_ready(struct ath10k *ar) { - int ret; + unsigned long time_left; - ret = wait_for_completion_timeout(&ar->wmi.unified_ready, - WMI_UNIFIED_READY_TIMEOUT_HZ); - return ret; + time_left = wait_for_completion_timeout(&ar->wmi.unified_ready, + WMI_UNIFIED_READY_TIMEOUT_HZ); + if(!time_left) + return 0; + return 1; } struct sk_buff *ath10k_wmi_alloc_skb(struct ath10k *ar, u32 len)