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authorYunshui Jiang <jiangyunshui@kylinos.cn>2024-05-31 16:07:39 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-07-25 09:53:36 +0200
commit16e149af9324cf5eee3d25aa465a579a4b3846d2 (patch)
tree786c8206077091be5ca989ad1864a9d8d64728de
parentd4bf88d0bd1d453967357db64e70d91cdea70afa (diff)
net: mac802154: Fix racy device stats updates by DEV_STATS_INC() and DEV_STATS_ADD()
[ Upstream commit b8ec0dc3845f6c9089573cb5c2c4b05f7fc10728 ] mac802154 devices update their dev->stats fields locklessly. Therefore these counters should be updated atomically. Adopt SMP safe DEV_STATS_INC() and DEV_STATS_ADD() to achieve this. Signed-off-by: Yunshui Jiang <jiangyunshui@kylinos.cn> Message-ID: <20240531080739.2608969-1-jiangyunshui@kylinos.cn> Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--net/mac802154/tx.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/net/mac802154/tx.c b/net/mac802154/tx.c
index 2a6f1ed763c9..6fbed5bb5c3e 100644
--- a/net/mac802154/tx.c
+++ b/net/mac802154/tx.c
@@ -34,8 +34,8 @@ void ieee802154_xmit_sync_worker(struct work_struct *work)
if (res)
goto err_tx;
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += skb->len;
+ DEV_STATS_INC(dev, tx_packets);
+ DEV_STATS_ADD(dev, tx_bytes, skb->len);
ieee802154_xmit_complete(&local->hw, skb, false);
@@ -90,8 +90,8 @@ ieee802154_tx(struct ieee802154_local *local, struct sk_buff *skb)
if (ret)
goto err_wake_netif_queue;
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += len;
+ DEV_STATS_INC(dev, tx_packets);
+ DEV_STATS_ADD(dev, tx_bytes, len);
} else {
local->tx_skb = skb;
queue_work(local->workqueue, &local->sync_tx_work);