From: Eric Dumazet <[email protected]> 3.12-stable review patch. If anyone has any objections, please let me know.
=============== [ Upstream commit 6088beef3f7517717bd21d90b379714dd0837079 ] NAPI poll logic now enforces that a poller returns exactly the budget when it wants to be called again. If a driver limits TX completion, it has to return budget as well when the limit is hit, not the number of received packets. Reported-and-tested-by: Mike Galbraith <[email protected]> Signed-off-by: Eric Dumazet <[email protected]> Fixes: d75b1ade567f ("net: less interrupt masking in NAPI") Cc: Manish Chopra <[email protected]> Acked-by: Manish Chopra <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Jiri Slaby <[email protected]> --- drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c index cbd75f97ffb3..03707c1edc2a 100644 --- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c +++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c @@ -2366,7 +2366,10 @@ static int netxen_nic_poll(struct napi_struct *napi, int budget) work_done = netxen_process_rcv_ring(sds_ring, budget); - if ((work_done < budget) && tx_complete) { + if (!tx_complete) + work_done = budget; + + if (work_done < budget) { napi_complete(&sds_ring->napi); if (test_bit(__NX_DEV_UP, &adapter->state)) netxen_nic_enable_int(sds_ring); -- 2.2.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
