powerpc/eeh_cache: Add pr_debug() prints for insert/remove

The EEH address cache is used to map a physical MMIO address back to a PCI
device. It's useful to know when it's being manipulated, but currently this
requires recompiling with #define DEBUG set. This is pointless since we
have dynamic_debug nowdays, so remove the #ifdef guard and add a pr_debug()
for the remove case too.

Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Reviewed-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/kernel/eeh_cache.c

@@ -157,10 +157,8 @@ eeh_addr_cache_insert(struct pci_dev *dev, resource_size_t alo,
 	piar->pcidev = dev;
 	piar->flags = flags;
 
-#ifdef DEBUG
 	pr_debug("PIAR: insert range=[%pap:%pap] dev=%s\n",
 		 &alo, &ahi, pci_name(dev));
-#endif
 
 	rb_link_node(&piar->rb_node, parent, p);
 	rb_insert_color(&piar->rb_node, &pci_io_addr_cache_root.rb_root);
@@ -240,6 +238,8 @@ static inline void __eeh_addr_cache_rmv_dev(struct pci_dev *dev)
 		piar = rb_entry(n, struct pci_io_addr_range, rb_node);
 
 		if (piar->pcidev == dev) {
+			pr_debug("PIAR: remove range=[%pap:%pap] dev=%s\n",
+				 &piar->addr_lo, &piar->addr_hi, pci_name(dev));
 			rb_erase(n, &pci_io_addr_cache_root.rb_root);
 			kfree(piar);
 			goto restart;