From: <sean.wang@mediatek.com>
To: <nbd@nbd.name>, <lorenzo.bianconi@redhat.com>
Cc: <sean.wang@mediatek.com>, <Soul.Huang@mediatek.com>,
<YN.Chen@mediatek.com>, <robin.chiu@mediatek.com>,
<ch.yeh@mediatek.com>, <posh.sun@mediatek.com>,
<Eric.Liang@mediatek.com>, <Stella.Chang@mediatek.com>,
<linux-wireless@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>
Subject: [PATCH 2/2] mt76: mt7921: abort uncompleted scan by wifi reset
Date: Thu, 15 Apr 2021 21:41:45 +0800 [thread overview]
Message-ID: <1618494105-5462-2-git-send-email-sean.wang@mediatek.com> (raw)
In-Reply-To: <1618494105-5462-1-git-send-email-sean.wang@mediatek.com>
From: Sean Wang <sean.wang@mediatek.com>
Scan abort should be required for the uncompleted hardware scan
interrupted by wifi reset. Otherwise, it is possible that the scan
request after wifi reset gets error code -EBUSY from mac80211 and
then blocks the reconnectting to the access point.
Fixes: 215bb6737bef ("mt76: mt7921: add wifi reset support")
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
index 572bab82315a..3145880df6e7 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
@@ -1413,6 +1413,14 @@ void mt7921_mac_reset_work(struct work_struct *work)
if (i == 10)
dev_err(dev->mt76.dev, "chip reset failed\n");
+ if (test_and_clear_bit(MT76_HW_SCANNING, &dev->mphy.state)) {
+ struct cfg80211_scan_info info = {
+ .aborted = true,
+ };
+
+ ieee80211_scan_completed(dev->mphy.hw, &info);
+ }
+
ieee80211_wake_queues(hw);
ieee80211_iterate_active_interfaces(hw,
IEEE80211_IFACE_ITER_RESUME_ALL,
--
2.25.1
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next prev parent reply other threads:[~2021-04-15 13:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-15 13:41 [PATCH 1/2] mt76: mt7921: add debugfs knob for performing wifi reset sean.wang
2021-04-15 13:41 ` sean.wang [this message]
2021-04-15 13:53 ` Lorenzo Bianconi
2021-04-15 14:53 ` sean.wang
2021-04-15 15:07 ` Lorenzo Bianconi
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