diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/sfc/ef100_rep.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/ef100_rep.c b/drivers/net/ethernet/sfc/ef100_rep.c index e6c6e9e764b2..c0bc12b9e348 100644 --- a/drivers/net/ethernet/sfc/ef100_rep.c +++ b/drivers/net/ethernet/sfc/ef100_rep.c @@ -224,6 +224,7 @@ static void efx_ef100_rep_destroy_netdev(struct efx_rep *efv) list_del(&efv->list); spin_unlock_bh(&efx->vf_reps_lock); rtnl_unlock(); + synchronize_rcu(); free_netdev(efv->net_dev); } @@ -375,3 +376,21 @@ void efx_ef100_rep_rx_packet(struct efx_rep *efv, struct efx_rx_buffer *rx_buf) if (primed) napi_schedule(&efv->napi); } + +struct efx_rep *efx_ef100_find_rep_by_mport(struct efx_nic *efx, u16 mport) +{ + struct efx_rep *efv, *out = NULL; + + /* spinlock guards against list mutation while we're walking it; + * but caller must also hold rcu_read_lock() to ensure the netdev + * isn't freed after we drop the spinlock. + */ + spin_lock_bh(&efx->vf_reps_lock); + list_for_each_entry(efv, &efx->vf_reps, list) + if (efv->mport == mport) { + out = efv; + break; + } + spin_unlock_bh(&efx->vf_reps_lock); + return out; +} |