net/core: remove explicit do_softirq() from busy_poll_stop()

Since commit 217f697 ("net: busy-poll: allow preemption in sk_busy_loop()") there is an explicit do_softirq() invocation after local_bh_enable() has been invoked. I don't understand why we need this because local_bh_enable() will invoke do_softirq() once the softirq counter reached zero and we have softirq-related work pending. Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: David S. Miller <[email protected]>
ambv · Jun 20, 2017 · fe420d8 · fe420d8
1 parent bdaf32c
commit fe420d8
Showing 1 changed file with 0 additions and 2 deletions.
diff --git a/net/core/dev.c b/net/core/dev.c
@@ -5206,8 +5206,6 @@ static void busy_poll_stop(struct napi_struct *napi, void *have_poll_lock)
 	if (rc == BUSY_POLL_BUDGET)
 		__napi_schedule(napi);
 	local_bh_enable();
-	if (local_softirq_pending())
-		do_softirq();
 }
 
 void napi_busy_loop(unsigned int napi_id,