[CentOS-devel] netlink_kernel_create() always returns NULL

Tue Feb 22 11:32:20 UTC 2011
Kenni Lund <kenni at kelu.dk>

2011/2/22 YANG <youngyt at gmail.com>:
> My code fragment is below:
> "nl_sk = netlink_kernel_create(16, 0, nl_data_ready, THIS_MODULE);"
> It can be "make" and "insmod" correctly. But error mesage is printed into
> log. It indicates the netlink_kernel_create() returns NULL.
> Once I change the firt parameter to another(<32 && >16), system crash when I
> execute insmod.
> Is the protocol ID occupied? Why can't use another and how to define a new
> ID? I have tried to update net_link.h but fail also.

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Best regards