This is a note to let you know that I've just added the patch titled
net: mv643xx_eth: disable napi when init rxq or txq failed in mv643xx_eth_open()
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-mv643xx_eth-disable-napi-when-init-rxq-or-txq-fa.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit cee1386cc7a214cbabbd46fbb32eecbd215968a2
Author: Zhengchao Shao <shaozhengchao@xxxxxxxxxx>
Date: Wed Nov 9 10:54:32 2022 +0800
net: mv643xx_eth: disable napi when init rxq or txq failed in mv643xx_eth_open()
[ Upstream commit f111606b63ff2282428ffbac0447c871eb957b6c ]
When failed to init rxq or txq in mv643xx_eth_open() for opening device,
napi isn't disabled. When open mv643xx_eth device next time, it will
trigger a BUG_ON() in napi_enable(). Compile tested only.
Fixes: 2257e05c1705 ("mv643xx_eth: get rid of receive-side locking")
Signed-off-by: Zhengchao Shao <shaozhengchao@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221109025432.80900-1-shaozhengchao@xxxxxxxxxx
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index b6be0552a6c1..40a5957b1449 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2481,6 +2481,7 @@ static int mv643xx_eth_open(struct net_device *dev)
for (i = 0; i < mp->rxq_count; i++)
rxq_deinit(mp->rxq + i);
out:
+ napi_disable(&mp->napi);
free_irq(dev->irq, dev);
return err;
