Question

the syntax for netif_napi_add is

netif_napi_add(struct net_device *dev, struct napi_struct *napi,int (*poll)(struct napi_struct *, int), int weight)

it is used for initializing the napi structure . the problem is when i am using the function as

 netif_napi_add(wdev,rnapi,rrpoll(rnapi,20),16);

its giving me warning on time of compilation as

warning: passing argument 3 of ‘netif_napi_add’ makes pointer from integer without a cast
/usr/src/linux-2.6.34.10-0.6/include/linux/netdevice.h:1089:6: note: expected ‘int (*)(struct napi_struct *, int)’ but argument is of type ‘int’

how to write it correctly ??

regards

karan

Answer 1

In the call

netif_napi_add(wdev,rnapi,rrpoll(rnapi,20),16);

you are calling rrpoll. It should be passed as a pointer:

netif_napi_add(wdev,rnapi,&rrpoll,16);

The system will then call rrpoll for you.