linux-stable.git/drivers/net/ovpn/stats.h, branch linux-rolling-stable Linux kernel stable tree ovpn: disable BHs when updating device stats 2026-06-01T15:54:44+00:00 Ralf Lici ralf@mandelbit.com 2026-05-13T13:26:10+00:00 8022d690bc6253ba518f355aba86fd5064b9b53f [ Upstream commit 0c0dddc07d272a8d25922e48041e8e4d2434df7e ] ovpn updates dev->dstats from both process and softirq contexts. In particular, TCP paths may run from socket callbacks, workqueues or strparser work, while UDP receive and ovpn's ndo_start_xmit path may update the same per-device dstats from BH context. Add ovpn device drop-stat helpers that disable BHs around dev_dstats_rx_dropped() and dev_dstats_tx_dropped(), and use them for drop accounting. The successful RX dev_dstats_rx_add() update is already covered by the BH-disabled section around gro_cells_receive(). For the successful TCP TX dev_dstats_tx_add() update, replace the existing preempt-disabled section with a BH-disabled one. Fixes: 11851cbd60ea ("ovpn: implement TCP transport") Signed-off-by: Ralf Lici <ralf@mandelbit.com> Signed-off-by: Antonio Quartulli <antonio@openvpn.net> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 0c0dddc07d272a8d25922e48041e8e4d2434df7e ]

ovpn updates dev->dstats from both process and softirq contexts. In
particular, TCP paths may run from socket callbacks, workqueues or
strparser work, while UDP receive and ovpn's ndo_start_xmit path may
update the same per-device dstats from BH context.

Add ovpn device drop-stat helpers that disable BHs around
dev_dstats_rx_dropped() and dev_dstats_tx_dropped(), and use them for
drop accounting.

The successful RX dev_dstats_rx_add() update is already covered by the
BH-disabled section around gro_cells_receive(). For the successful TCP
TX dev_dstats_tx_add() update, replace the existing preempt-disabled
section with a BH-disabled one.

Fixes: 11851cbd60ea ("ovpn: implement TCP transport")
Signed-off-by: Ralf Lici <ralf@mandelbit.com>
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
ovpn: store tunnel and transport statistics 2025-04-17T10:30:02+00:00 Antonio Quartulli antonio@openvpn.net 2025-04-15T11:17:27+00:00 04ca14955f9ae84a3185e23c4421966938e9d134 Byte/packet counters for in-tunnel and transport streams are now initialized and updated as needed. To be exported via netlink. Signed-off-by: Antonio Quartulli <antonio@openvpn.net> Link: https://patch.msgid.link/20250415-b4-ovpn-v26-10-577f6097b964@openvpn.net Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name> Signed-off-by: Paolo Abeni <pabeni@redhat.com> 
Byte/packet counters for in-tunnel and transport streams
are now initialized and updated as needed.

To be exported via netlink.

Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
Link: https://patch.msgid.link/20250415-b4-ovpn-v26-10-577f6097b964@openvpn.net
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>