On 04/15/2015 05:44 AM, David Laight wrote:
From: Alexander Duyck
Sent: 10 April 2015 20:56
On 04/10/2015 05:15 AM, Pablo Neira Ayuso wrote:
+another_round:
+ ret = __netif_receive_skb_ingress(skb, pfmemalloc, orig_dev);
+ switch (ret) {
+ case NET_RX_SUCCESS:
+ case NET_RX_DROP:
+ break;
+ case __NET_RX_ANOTHER_ROUND:
+ goto another_round;
+ }
rcu_read_unlock();
+
return ret;
}
Couldn't this just be done as a do while? It would probably be easier
to read and there wouldn't be any need for the another_round label anymore.
Or an infinite loop with a break at the bottom, as in:
for (;;) {
switch (...) {
case again:
continue;
default:
break;
}
break;
}
David
That is even more complicated. What I was thinking was
do {
ret = __netif_receive_skb_ingress(skb, pfmemalloc,
orig_dev);
} while (ret == __NET_RX_ANOTHER_ROUND);
Either that or the switch could just be replaced with a if statement
since the only case that really goes anywhere is __NET_RX_ANOTHER_ROUND
and everything else just exits anyway. I had just suggested a do/while
since that lets the goto be dropped, but an if would allow for avoiding
any unnecessary indentation on the call to __netif_receive_skb_ingress.
- Alex
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