[RFC 2/8] cxgb4: setup pcie memory window 4 and create p2pmem region

[Steve Wise]

> 
> 
> > +static void setup_memwin_p2pmem(struct adapter *adap)
> > +{
> > +	unsigned int mem_base = t4_read_reg(adap,
> CIM_EXTMEM2_BASE_ADDR_A);
> > +	unsigned int mem_size = t4_read_reg(adap,
> CIM_EXTMEM2_ADDR_SIZE_A);
> > +
> > +	if (!use_p2pmem)
> > +		return;
> 
> This is weird, why even call this if !use_p2pmem?
> 

The use_p2pmem was added after the original change.  I'll update as you
suggest.

> > +static int init_p2pmem(struct adapter *adapter)
> > +{
> > +	unsigned int mem_size = t4_read_reg(adapter,
> CIM_EXTMEM2_ADDR_SIZE_A);
> > +	struct p2pmem_dev *p;
> > +	int rc;
> > +	struct resource res;
> > +
> > +	if (!mem_size || !use_p2pmem)
> > +		return 0;
> 
> Again, weird...

Yup.