From: Oliver Stäbler oliver.staebler@bytesatwork.ch
This patch has been added to the stable tree. If you have any objections, please let us know.
===============
[ Upstream commit f6c23b174c3c96616514827407769cbcfc8005cf ]
After commit d75b1ade567f ("net: less interrupt masking in NAPI") napi repoll is done only when work_done == budget. So we need to return budget if there are still packets to receive.
Signed-off-by: Oliver Stäbler oliver.staebler@bytesatwork.ch Cc: linux-stable stable@vger.kernel.org Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/net/can/ti_hecc.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index 7bb3cf38f346..2965453853f3 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -652,6 +652,9 @@ static int ti_hecc_rx_poll(struct napi_struct *napi, int quota) mbx_mask = hecc_read(priv, HECC_CANMIM); mbx_mask |= HECC_TX_MBOX_MASK; hecc_write(priv, HECC_CANMIM, mbx_mask); + } else { + /* repoll is done only if whole budget is used */ + num_pkts = quota; }
return num_pkts;