diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2014-03-14 18:06:26 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-03-14 22:52:48 -0400 |
| commit | 99a09c26a8f353bc35087ffa8cc47ffdd6d5d5bc (patch) | |
| tree | b4fd085a225ec7b780b6c6ce0e54b9b15759f7f8 | |
| parent | 38be0a347c91133843474e12baacd252d0fd1c30 (diff) | |
s2io: Don't receive packets when the napi budget == 0
Processing any incoming packets with a with a napi budget of 0
is incorrect driver behavior.
This matters as netpoll will shortly call drivers with a budget of 0
to avoid receive packet processing happening in hard irq context.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/neterion/s2io.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c index 56e3a9d42bb2..d44fdb91808e 100644 --- a/drivers/net/ethernet/neterion/s2io.c +++ b/drivers/net/ethernet/neterion/s2io.c @@ -2914,6 +2914,9 @@ static int rx_intr_handler(struct ring_info *ring_data, int budget) struct RxD1 *rxdp1; struct RxD3 *rxdp3; + if (budget <= 0) + return napi_pkts; + get_info = ring_data->rx_curr_get_info; get_block = get_info.block_index; memcpy(&put_info, &ring_data->rx_curr_put_info, sizeof(put_info)); |