diff options
| author | Breno Leitao <leitao@debian.org> | 2024-08-05 12:40:11 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-08-06 22:18:30 +0300 |
| commit | 45160cebd6ac84fe8cc2b7f6fec2550398e144cd (patch) | |
| tree | 523fc48382acaf1bd4e7816e7d4aa2d8adadbfa6 /drivers/net/veth.c | |
| parent | edfa53dd617f682cb43a1488bf08aca9a3e4236c (diff) | |
| download | linux-45160cebd6ac84fe8cc2b7f6fec2550398e144cd.tar.xz | |
net: veth: Disable netpoll support
The current implementation of netpoll in veth devices leads to
suboptimal behavior, as it triggers warnings due to the invocation of
__netif_rx() within a softirq context. This is not compliant with
expected practices, as __netif_rx() has the following statement:
lockdep_assert_once(hardirq_count() | softirq_count());
Given that veth devices typically do not benefit from the
functionalities provided by netpoll, Disable netpoll for veth
interfaces.
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20240805094012.1843247-1-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/veth.c')
| -rw-r--r-- | drivers/net/veth.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 426e68a95067..34499b91a8bd 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -1696,6 +1696,7 @@ static void veth_setup(struct net_device *dev) dev->priv_flags |= IFF_LIVE_ADDR_CHANGE; dev->priv_flags |= IFF_NO_QUEUE; dev->priv_flags |= IFF_PHONY_HEADROOM; + dev->priv_flags |= IFF_DISABLE_NETPOLL; dev->netdev_ops = &veth_netdev_ops; dev->xdp_metadata_ops = &veth_xdp_metadata_ops; |