[<prev] [next>] [day] [month] [year] [list]
Message-Id: <20190215021546.179605-13-sashal@kernel.org>
Date: Thu, 14 Feb 2019 21:15:43 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Thomas Falcon <tlfalcon@...ux.ibm.com>,
"David S . Miller" <davem@...emloft.net>,
Sasha Levin <sashal@...nel.org>, linuxppc-dev@...ts.ozlabs.org,
netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 3.18 13/16] ibmveth: Do not process frames after calling napi_reschedule
From: Thomas Falcon <tlfalcon@...ux.ibm.com>
[ Upstream commit e95d22c69b2c130ccce257b84daf283fd82d611e ]
The IBM virtual ethernet driver's polling function continues
to process frames after rescheduling NAPI, resulting in a warning
if it exhausted its budget. Do not restart polling after calling
napi_reschedule. Instead let frames be processed in the following
instance.
Signed-off-by: Thomas Falcon <tlfalcon@...ux.ibm.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/net/ethernet/ibm/ibmveth.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 427a6674d237..f0301b1ff56c 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1085,7 +1085,6 @@ static int ibmveth_poll(struct napi_struct *napi, int budget)
int frames_processed = 0;
unsigned long lpar_rc;
-restart_poll:
while (frames_processed < budget) {
if (!ibmveth_rxq_pending_buffer(adapter))
break;
@@ -1154,7 +1153,6 @@ static int ibmveth_poll(struct napi_struct *napi, int budget)
napi_reschedule(napi)) {
lpar_rc = h_vio_signal(adapter->vdev->unit_address,
VIO_IRQ_DISABLE);
- goto restart_poll;
}
}
--
2.19.1
Powered by blists - more mailing lists