Commit d8156534 authored Jul 08, 2008 by Alexander Duyck Committed by Jeff Garzik Jul 11, 2008

net: add netif_napi_del function to allow for removal of napistructs



Adds netif_napi_del function which is used to remove the napi struct from
the netdev napi_list in cases where CONFIG_NETPOLL was enabled.
The motivation for adding this is to handle the case in which the number of
queues on a device changes due to a configuration change.  Previously the
napi structs for each queue would be left in the list until the netdev was
freed.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

parent d3352520

include/linux/netdevice.h

+13 −0

Original line number	Diff line number	Diff line
		@@ -828,6 +828,19 @@ static inline void netif_napi_add(struct net_device *dev,
		set_bit(NAPI_STATE_SCHED, &napi->state);
		}

		/**
		* netif_napi_del - remove a napi context
		* @napi: napi context
		*
		* netif_napi_del() removes a napi context from the network device napi list
		*/
		static inline void netif_napi_del(struct napi_struct *napi)
		{
		#ifdef CONFIG_NETPOLL
		list_del(&napi->dev_list);
		#endif
		}

		struct packet_type {
		__be16 type; /* This is really htons(ether_type). */
		struct net_device dev; / NULL is wildcarded here */