powerpc/eeh: Improve debug messages around device addition

Also remove useless comment.

Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/59db84f4bf94718a12f206bc923ac797d47e4cc1.1565930772.git.sbobroff@linux.ibm.com

arch/powerpc/platforms/powernv/eeh-powernv.c

@@ -44,10 +44,7 @@ void pnv_pcibios_bus_add_device(struct pci_dev *pdev)
 	if (!pdev->is_virtfn)
 		return;
 
-	/*
-	 * The following operations will fail if VF's sysfs files
-	 * aren't created or its resources aren't finalized.
-	 */
+	pr_debug("%s: EEH: Setting up device %s.\n", __func__, pci_name(pdev));
 	eeh_add_device_early(pdn);
 	eeh_add_device_late(pdev);
 	eeh_sysfs_add_device(pdev);
@@ -364,6 +361,10 @@ static void *pnv_eeh_probe(struct pci_dn *pdn, void *data)
 	int ret;
 	int config_addr = (pdn->busno << 8) | (pdn->devfn);
 
+	pr_debug("%s: probing %04x:%02x:%02x.%01x\n",
+		__func__, hose->global_number, pdn->busno,
+		PCI_SLOT(pdn->devfn), PCI_FUNC(pdn->devfn));
+
 	/*
 	 * When probing the root bridge, which doesn't have any
 	 * subordinate PCI devices. We don't have OF node for
@@ -458,6 +459,11 @@ static void *pnv_eeh_probe(struct pci_dn *pdn, void *data)
 	/* Save memory bars */
 	eeh_save_bars(edev);
 
+	pr_debug("%s: EEH enabled on %02x:%02x.%01x PHB#%x-PE#%x\n",
+		__func__, pdn->busno, PCI_SLOT(pdn->devfn),
+		PCI_FUNC(pdn->devfn), edev->pe->phb->global_number,
+		edev->pe->addr);
+
 	return NULL;
 }