I'm sometimes getting a crash after removing a hard interface when the
batadv_send_outstanding_bat_org_packet() is called in a work queue.
static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
int packet_len, unsigned long send_time,
struct batadv_hard_iface *if_incoming,
struct batadv_hard_iface *if_outgoing,
struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
struct batadv_forw_packet *forw_packet_aggr;
unsigned char *skb_buff;
unsigned int skb_size;
Given that we have:
static inline void batadv_hardif_put(struct batadv_hard_iface *hard_iface)
does using kref_get_unless_zero() make sense? If it is zero, hasn't it
been freed by the kref_put that set it to zero?