From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from nbd.name ([46.4.11.11]:51952 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751026AbeETFnw (ORCPT ); Sun, 20 May 2018 01:43:52 -0400 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: kvalo@codeaurora.org Subject: [PATCH 5/5] mt76: use udelay instead of usleep_range in mt76x2_mac_stop Date: Sun, 20 May 2018 07:43:49 +0200 Message-Id: <20180520054349.49422-5-nbd@nbd.name> (sfid-20180520_074407_315770_BE01A2B6) In-Reply-To: <20180520054349.49422-1-nbd@nbd.name> References: <20180520054349.49422-1-nbd@nbd.name> Sender: linux-wireless-owner@vger.kernel.org List-ID: usleep_range can cause excessive latency on channel change if waiting for the MAC to stop fails. It will be forced to stop by the code following that loop anyway. Signed-off-by: Felix Fietkau --- drivers/net/wireless/mediatek/mt76/mt76x2_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_init.c b/drivers/net/wireless/mediatek/mt76/mt76x2_init.c index 7096256c7f50..4e5f360d0655 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2_init.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2_init.c @@ -376,7 +376,7 @@ void mt76x2_mac_stop(struct mt76x2_dev *dev, bool force) if ((mt76_rr(dev, MT_MAC_STATUS) & (MT_MAC_STATUS_RX | MT_MAC_STATUS_TX)) || mt76_rr(dev, MT_BBP(IBI, 12))) { - usleep_range(10, 20); + udelay(1); continue; } -- 2.17.0