linux/net/l2tp
Qingfang Deng 95d0d094ba ppp: use IFF_NO_QUEUE in virtual interfaces
For PPPoE, PPTP, and PPPoL2TP, the start_xmit() function directly
forwards packets to the underlying network stack and never returns
anything other than 1. So these interfaces do not require a qdisc,
and the IFF_NO_QUEUE flag should be set.

Introduces a direct_xmit flag in struct ppp_channel to indicate when
IFF_NO_QUEUE should be applied. The flag is set in ppp_connect_channel()
for relevant protocols.

While at it, remove the usused latency member from struct ppp_channel.

Signed-off-by: Qingfang Deng <dqfext@gmail.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://patch.msgid.link/20250301135517.695809-1-dqfext@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-04 17:11:17 -08:00
..
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
l2tp_core.c net/l2tp: fix warning in l2tp_exit_net found by syzbot 2024-11-26 09:27:07 +01:00
l2tp_core.h l2tp: improve tunnel/session refcount helpers 2024-08-11 04:38:50 +01:00
l2tp_debugfs.c l2tp: improve tunnel/session refcount helpers 2024-08-11 04:38:50 +01:00
l2tp_eth.c l2tp: Handle eth stats using NETDEV_PCPU_STAT_DSTATS. 2024-12-11 13:57:26 +00:00
l2tp_ip.c l2tp: Use inet_sk_init_flowi4() in l2tp_ip_sendmsg(). 2024-12-20 13:50:09 -08:00
l2tp_ip6.c ipv6: replace ipcm6_init calls with ipcm6_init_sk 2025-02-18 18:27:20 -08:00
l2tp_netlink.c genetlink: hold RCU in genlmsg_mcast() 2024-10-15 17:52:58 -07:00
l2tp_ppp.c ppp: use IFF_NO_QUEUE in virtual interfaces 2025-03-04 17:11:17 -08:00
Makefile l2tp: add tracepoint infrastructure to core 2020-08-22 12:44:37 -07:00
trace.h l2tp: add tracepoint definitions in trace.h 2020-08-22 12:44:37 -07:00