powerpc/powernv: Check primary PHB through ID

The index of one specific PCI controller (struct pci_controller::
global_number) can tell that it's primary one or not. So we needn't
additional variable for that and just remove it.

Signed-off-by: Gavin Shan <[e-mail]>
Signed-off-by: Benjamin Herrenschmidt <[e-mail]>

arch/powerpc/platforms/powernv/pci-ioda.c

···
 				  u64 hub_id, int ioda_type)
 {
 	struct pci_controller *hose;
-	static int primary = 1;
 	struct pnv_phb *phb;
 	unsigned long size, m32map_off, iomap_off, pemap_off;
 	const u64 *prop64;
···
 		phb->model = PNV_PHB_MODEL_UNKNOWN;
 
 	/* Parse 32-bit and IO ranges (if any) */
-	pci_process_bridge_OF_ranges(phb->hose, np, primary);
-	primary = 0;
+	pci_process_bridge_OF_ranges(hose, np, !hose->global_number);
 
 	/* Get registers */
 	phb->regs = of_iomap(np, 0);