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authorAlexander Duyck <alexander.h.duyck@intel.com>2008-07-08 15:13:05 -0700
committerJeff Garzik <jgarzik@redhat.com>2008-07-11 01:20:33 -0400
commitd8156534040996f6a93a24d3592d5d587f2587e5 (patch)
tree3b9528f1551560502af9d8686b4615551fe38795 /include
parentd3352520273426e4c16e91d189aa8aa7ee5e96c5 (diff)
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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/netdevice.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 203c5504fe4..b54ec16dfbd 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -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 */