Hi,

I really dont want to be a killjoy, but...

+		int ret;
+
+		skb = __netdev_alloc_skb_ip_align(adpt->netdev,
+						  adpt->rxbuf_size, GFP_KERNEL);

This is also called in softirq context by the napi handler in which GFP_KERNEL is
not allowed.
You can either extend the refill function by one gfp_t parameter and then call it 
with GFP_KERNEL for the initial rx buffer allocation when the hw is brought up and 
then with GFP_ATOMIC for refilling in the NAPI handler. Or simply always use GFP_ATOMIC.
In the latter case the additional parameter is not needed of course and you can
use netdev_alloc_skb_ip_align() instead of __netdev_alloc_skb_ip_align().

Regards,
Lino