From: Arnd Bergmann <arnd@xxxxxxxx> Date: Wed, 10 Dec 2014 10:35:20 +0100 > On Wednesday 10 December 2014 14:45:29 Ding Tianhong wrote: >> >> Miss this code, I think the best way is skb_orphan(skb), just like the cxgb3 drivers, some hardware >> didn't use the tx inq to free dmad Tx packages. > > The problem with skb_orphan is that you are telling the network stack that > the packet is now out of its reach and it will no longer be able to take > queued packets into account. skb_orphan() also does not release netfilter resources attached to the packet. Really, all drivers must free TX SKBs in a small, finite, amount of time after submission. There is no way around this. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html