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napi_hash_del() will soon be used from both drivers (if they want) or core networking stack. Callers are responsibles to ensure an RCU grace period is respected before freeing napi structure : napi_hash_del() can signal if this RCU grace period is needed or not. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>