[openib-general] Compile warnings (cross build)

[Michael S. Tsirkin]

Quoting r. Roland Dreier <rdreier at cisco.com>:
> -		 (u64)c2dev->rep_vq.host_dma);
> +		 (unsigned long long) c2dev->rep_vq.host_dma);

BTW, is there some printk format to print u64 type?

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MST