Files
linux/net
Xiao Guangrong f2798eb4e0 drop_monitor: fix trace_napi_poll_hit()
The net_dev of backlog napi is NULL, like below:

__get_cpu_var(softnet_data).backlog.dev == NULL

So, we should check it in napi tracepoint's probe function

Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-01 18:18:12 -07:00
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