Files
linux-stable-mirror/include/linux
Eric Dumazet fe946a751d net/sched: act_mirred: add loop detection
Commit 0f022d32c3 ("net/sched: Fix mirred deadlock on device recursion")
added code in the fast path, even when act_mirred is not used.

Prepare its revert by implementing loop detection in act_mirred.

Adds an array of device pointers in struct netdev_xmit.

tcf_mirred_is_act_redirect() can detect if the array
already contains the target device.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Tested-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/20251014171907.3554413-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-10-16 16:25:10 -07:00
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