Commit f820c0ac authored by Bert Kenward's avatar Bert Kenward Committed by David S. Miller

sfc: don't rearm interrupts if busy polling

Since commit 364b6055 ("net: busy-poll: return busypolling status
to drivers"), napi_complete_done() returns a boolean that can be used
by drivers to conditionally rearm interrupts.

Testing with a 7142 shows a small latency improvement of ~100 ns.
Signed-off-by: default avatarBert Kenward <bkenward@solarflare.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d15c9ede
......@@ -328,7 +328,7 @@ static int efx_poll(struct napi_struct *napi, int budget)
* since efx_nic_eventq_read_ack() will have no effect if
* interrupts have already been disabled.
*/
napi_complete_done(napi, spent);
if (napi_complete_done(napi, spent))
efx_nic_eventq_read_ack(channel);
}
......
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