From 21ecba6c48f903781d844b62854bedd8137df470 Mon Sep 17 00:00:00 2001 From: Thomas Falcon Date: Wed, 14 Jun 2017 23:50:09 -0500 Subject: [PATCH] ibmvnic: Exit polling routine correctly during adapter reset This patch fixes a bug where, in the case of a device reset, the polling routine will never complete, causing napi_disable to sleep indefinitely when attempting to close the device. Signed-off-by: Thomas Falcon Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/ibmvnic.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index ebe443fe51db..9923b9fa0c74 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -1505,9 +1505,6 @@ static int ibmvnic_poll(struct napi_struct *napi, int budget) int scrq_num = (int)(napi - adapter->napi); int frames_processed = 0; - if (adapter->resetting) - return 0; - restart_poll: while (frames_processed < budget) { struct sk_buff *skb; @@ -1517,6 +1514,12 @@ restart_poll: u16 offset; u8 flags = 0; + if (unlikely(adapter->resetting)) { + enable_scrq_irq(adapter, adapter->rx_scrq[scrq_num]); + napi_complete_done(napi, frames_processed); + return frames_processed; + } + if (!pending_scrq(adapter, adapter->rx_scrq[scrq_num])) break; next = ibmvnic_next_scrq(adapter, adapter->rx_scrq[scrq_num]); -- 2.30.2