[PATCH net] cxgb4: do not call napi_hash_del()

[Eric Dumazet]

From: Eric Dumazet <eduma...@google.com>

Calling napi_hash_del() before netif_napi_del() is dangerous
if a synchronize_rcu() is not enforced before NAPI struct freeing.

Lets leave this detail to core networking stack and feel
more comfortable.

Signed-off-by: Eric Dumazet <eduma...@google.com>
Cc: Hariprasad S <haripra...@chelsio.com>
---
 drivers/net/ethernet/chelsio/cxgb4/sge.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c 
b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index 1e74fd6085df..e19a0ca8e5dd 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -2951,7 +2951,6 @@ void free_rspq_fl(struct adapter *adap, struct sge_rspq 
*rq,
                   rq->cntxt_id, fl_id, 0xffff);
        dma_free_coherent(adap->pdev_dev, (rq->size + 1) * rq->iqe_len,
                          rq->desc, rq->phys_addr);
-       napi_hash_del(&rq->napi);
        netif_napi_del(&rq->napi);
        rq->netdev = NULL;
        rq->cntxt_id = rq->abs_id = 0;