netfilter: br_netfilter: Use nested-BH locking for brnf_frag_data_storage.

brnf_frag_data_storage 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.

Add a local_lock_t to the data structure and use local_lock_nested_bh()
for locking. This change adds only lockdep coverage and does not alter
the functional behaviour for !PREEMPT_RT.

Cc: Florian Westphal <[email protected]>
Cc: Jozsef Kadlecsik <[email protected]>
Cc: Nikolay Aleksandrov <[email protected]>
Cc: Pablo Neira Ayuso <[email protected]>
Cc: Roopa Prabhu <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

0 files changed, 0 insertions, 0 deletions