Commit 5e20d55a authored by stephen hemminger's avatar stephen hemminger Committed by David S. Miller

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: default avatarStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6123c668
...@@ -1191,10 +1191,6 @@ int netvsc_poll(struct napi_struct *napi, int budget) ...@@ -1191,10 +1191,6 @@ int netvsc_poll(struct napi_struct *napi, int budget)
nvchan->desc = hv_pkt_iter_next(channel, nvchan->desc); 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 /* If send of pending receive completions suceeded
* and did not exhaust NAPI budget this time * and did not exhaust NAPI budget this time
* and not doing busy poll * and not doing busy poll
......
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