diff options
| author | Michael Bestas <mkbestas@lineageos.org> | 2020-05-10 01:30:22 +0300 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2020-05-14 20:02:37 +0300 |
| commit | 5d60efc89fa6e5a6616bd9dfa2b0702756b7404e (patch) | |
| tree | 87757b8f716c565352758d964f4fead762d7e139 /drivers/net/xen-netfront.c | |
| parent | 47adfb24dc4eabe3507c89902c5068f501b01b13 (diff) | |
| parent | 96b09cba55905a34aa152a9689a43d6d3c78b04d (diff) | |
Merge branch 'android-4.4-p' of https://android.googlesource.com/kernel/common into lineage-17.1-caf-msm8998
This brings LA.UM.8.4.r1-05400-8x98.0 up to date with
https://android.googlesource.com/kernel/common/ android-4.4-p at commit:
96b09cba55905 UPSTREAM: net: socket: set sock->sk to NULL after calling proto_ops::release()
Conflicts:
drivers/scsi/ufs/ufshcd.c
drivers/usb/gadget/composite.c
drivers/usb/gadget/function/f_fs.c
Change-Id: I3e79c0d20e3eb3246a50c9a1e815cdf030a4232e
Diffstat (limited to 'drivers/net/xen-netfront.c')
| -rw-r--r-- | drivers/net/xen-netfront.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index e99a07d5fda7..02b6a6c10840 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -283,6 +283,7 @@ static void xennet_alloc_rx_buffers(struct netfront_queue *queue) { RING_IDX req_prod = queue->rx.req_prod_pvt; int notify; + int err = 0; if (unlikely(!netif_carrier_ok(queue->info->netdev))) return; @@ -297,8 +298,10 @@ static void xennet_alloc_rx_buffers(struct netfront_queue *queue) struct xen_netif_rx_request *req; skb = xennet_alloc_one_rx_buffer(queue); - if (!skb) + if (!skb) { + err = -ENOMEM; break; + } id = xennet_rxidx(req_prod); @@ -322,8 +325,13 @@ static void xennet_alloc_rx_buffers(struct netfront_queue *queue) queue->rx.req_prod_pvt = req_prod; - /* Not enough requests? Try again later. */ - if (req_prod - queue->rx.sring->req_prod < NET_RX_SLOTS_MIN) { + /* Try again later if there are not enough requests or skb allocation + * failed. + * Enough requests is quantified as the sum of newly created slots and + * the unconsumed slots at the backend. + */ + if (req_prod - queue->rx.rsp_cons < NET_RX_SLOTS_MIN || + unlikely(err)) { mod_timer(&queue->rx_refill_timer, jiffies + (HZ/10)); return; } |