diff options
| author | stephen hemminger <stephen@networkplumber.org> | 2017-08-10 03:46:04 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-11 23:59:42 +0300 |
| commit | 5e20d55a23a76a876396ba1235bdf019e74d0c6f (patch) | |
| tree | 6e63a1a4e1f9b0789c2c71839569d13d8d068938 /drivers | |
| parent | 6123c66854c174e4982f98195100c1d990f9e5e6 (diff) | |
| download | linux-5e20d55a23a76a876396ba1235bdf019e74d0c6f.tar.xz | |
netvsc: don't signal host twice if empty
When hv_pkt_iter_next() returns NULL, it has already called
hv_pkt_iter_close(). Calling it twice can lead to extra host signal.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/hyperv/netvsc.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index bffaf93d3cb0..b5fc8fb56b88 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -1191,10 +1191,6 @@ int netvsc_poll(struct napi_struct *napi, int budget) nvchan->desc = hv_pkt_iter_next(channel, nvchan->desc); } - /* if ring is empty, signal host */ - if (!nvchan->desc) - hv_pkt_iter_close(channel); - /* If send of pending receive completions suceeded * and did not exhaust NAPI budget this time * and not doing busy poll |