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(parent: ba36fad) | patch
netfilter: nf_dup_netdev: Move the recursion counter struct netdev_xmit
authorSebastian Andrzej Siewior <bigeasy@linutronix.de>
Mon, 12 May 2025 10:28:46 +0000 (12:28 +0200)
committerPablo Neira Ayuso <pablo@netfilter.org>
Fri, 23 May 2025 11:57:12 +0000 (13:57 +0200)
commitf37ad91270397a6d053e8623bdb3cf79859691d2
tree846e837993ca1cadaf52af0a3ca5d2e359659806tree | snapshot
parentba36fada9ab487634f61f92769c95bc148aa8f49commit | diff
netfilter: nf_dup_netdev: Move the recursion counter struct netdev_xmit

nf_dup_skb_recursion is a per-CPU variable and relies on disabled BH for its
locking. Without per-CPU locking in local_bh_disable() on PREEMPT_RT
this data structure requires explicit locking.

Move nf_dup_skb_recursion to struct netdev_xmit, provide wrappers.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
include/linux/netdevice_xmit.h diff | blob | history
net/netfilter/nf_dup_netdev.c diff | blob | history
Linux kernels and configurations used by Zygo.