lan743x: fix return value for lan743x_tx_napi_poll
The lan743x driver, when under heavy traffic load, has been noticed
to sometimes hang, or cause a kernel panic.
Debugging reveals that the TX napi poll routine was returning
the wrong value, 'weight'. Most other drivers return 0.
And call napi_complete, instead of napi_complete_done.
Additionally when creating the tx napi poll routine.
Changed netif_napi_add, to netif_tx_napi_add.
Updates for v3:
changed 'fixes' tag to match defined format
Updates for v2:
use napi_complete, instead of napi_complete_done in
lan743x_tx_napi_poll
use netif_tx_napi_add, instead of netif_napi_add for
registration of tx napi poll routine
fixes: 23f0703c125b ("lan743x: Add main source files for new lan743x driver")
Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 867cddb..d627129 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -1672,7 +1672,7 @@
netif_wake_queue(adapter->netdev);
}
- if (!napi_complete_done(napi, weight))
+ if (!napi_complete(napi))
goto done;
/* enable isr */
@@ -1681,7 +1681,7 @@
lan743x_csr_read(adapter, INT_STS);
done:
- return weight;
+ return 0;
}
static void lan743x_tx_ring_cleanup(struct lan743x_tx *tx)
@@ -1870,9 +1870,9 @@
tx->vector_flags = lan743x_intr_get_vector_flags(adapter,
INT_BIT_DMA_TX_
(tx->channel_number));
- netif_napi_add(adapter->netdev,
- &tx->napi, lan743x_tx_napi_poll,
- tx->ring_size - 1);
+ netif_tx_napi_add(adapter->netdev,
+ &tx->napi, lan743x_tx_napi_poll,
+ tx->ring_size - 1);
napi_enable(&tx->napi);
data = 0;
