ibmvnic: Allocate statistics buffers during probe
Currently, buffers holding individual queue statistics are allocated when the device is opened. If an ibmvnic interface is hotplugged or initialized but never opened, an attempt to get statistics with ethtool will result in a kernel panic. Since the driver allocates a constant number, the maximum supported queues, of buffers, these can be allocated during device probe and freed when the device is hot-unplugged or the module is removed. Signed-off-by: NThomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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