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____napi_schedule() adds a napi into current cpu softnet_data poll_list, then raises NET_RX_SOFTIRQ to make sure net_rx_action() will process it. Idea of this patch is to not raise NET_RX_SOFTIRQ when being called indirectly from net_rx_action(), because we can process poll_list from this point, without going to full softirq loop. This needs a change in net_rx_action() to make sure we restart its main loop if sd->poll_list was updated without NET_RX_SOFTIRQ being raised. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Jason Xing <kernelxing@tencent.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Tested-by: Jason Xing <kerneljasonxing@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>