PCI: Replace dev_printk(KERN_DEBUG) with dev_info(), etc

task #29600094

commit 34c6b7105e5a11174f856483cde8ad6e61b7236a upstream.
Backport summary: for 4.19 kernel ICX PCIe Gen4 support.

Replace dev_printk(KERN_DEBUG) with dev_info(), etc to be more consistent
with other logging and avoid checkpatch warnings.

The KERN_DEBUG messages could be converted to dev_dbg(), but that depends
on CONFIG_DYNAMIC_DEBUG and DEBUG, and we want most of these messages to
*always* be in the dmesg log.

Link: https://lore.kernel.org/lkml/1555733240-19875-1-git-send-email-mohankumar718@gmail.comSigned-off-by: NMohan Kumar <mohankumar718@gmail.com>
[bhelgaas: commit log]
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>

(cherry picked from commit 34c6b7105e5a11174f856483cde8ad6e61b7236a)
Signed-off-by: NEthan Zhao <haifeng.zhao@intel.com>
Signed-off-by: NArtie Ding <artie.ding@linux.alibaba.com>
Acked-by: NCaspar Zhang <caspar@linux.alibaba.com>

drivers/pci/bus.c

@@ -288,8 +288,7 @@ bool pci_bus_clip_resource(struct pci_dev *dev, int idx)
 		res->end = end;
 		res->flags &= ~IORESOURCE_UNSET;
 		orig_res.flags &= ~IORESOURCE_UNSET;
-		pci_printk(KERN_DEBUG, dev, "%pR clipped to %pR\n",
-				 &orig_res, res);
+		pci_info(dev, "%pR clipped to %pR\n", &orig_res, res);
 
 		return true;
 	}

drivers/pci/pci.c

@@ -2770,14 +2770,14 @@ void pci_pm_init(struct pci_dev *dev)
 			dev->d2_support = true;
 
 		if (dev->d1_support || dev->d2_support)
-			pci_printk(KERN_DEBUG, dev, "supports%s%s\n",
+			pci_info(dev, "supports%s%s\n",
 				   dev->d1_support ? " D1" : "",
 				   dev->d2_support ? " D2" : "");
 	}
 
 	pmc &= PCI_PM_CAP_PME_MASK;
 	if (pmc) {
-		pci_printk(KERN_DEBUG, dev, "PME# supported from%s%s%s%s%s\n",
+		pci_info(dev, "PME# supported from%s%s%s%s%s\n",
 			 (pmc & PCI_PM_CAP_PME_D0) ? " D0" : "",
 			 (pmc & PCI_PM_CAP_PME_D1) ? " D1" : "",
 			 (pmc & PCI_PM_CAP_PME_D2) ? " D2" : "",
@@ -2945,16 +2945,16 @@ static int pci_ea_read(struct pci_dev *dev, int offset)
 	res->flags = flags;
 
 	if (bei <= PCI_EA_BEI_BAR5)
-		pci_printk(KERN_DEBUG, dev, "BAR %d: %pR (from Enhanced Allocation, properties %#02x)\n",
+		pci_info(dev, "BAR %d: %pR (from Enhanced Allocation, properties %#02x)\n",
 			   bei, res, prop);
 	else if (bei == PCI_EA_BEI_ROM)
-		pci_printk(KERN_DEBUG, dev, "ROM: %pR (from Enhanced Allocation, properties %#02x)\n",
+		pci_info(dev, "ROM: %pR (from Enhanced Allocation, properties %#02x)\n",
 			   res, prop);
 	else if (bei >= PCI_EA_BEI_VF_BAR0 && bei <= PCI_EA_BEI_VF_BAR5)
-		pci_printk(KERN_DEBUG, dev, "VF BAR %d: %pR (from Enhanced Allocation, properties %#02x)\n",
+		pci_info(dev, "VF BAR %d: %pR (from Enhanced Allocation, properties %#02x)\n",
 			   bei - PCI_EA_BEI_VF_BAR0, res, prop);
 	else
-		pci_printk(KERN_DEBUG, dev, "BEI %d res: %pR (from Enhanced Allocation, properties %#02x)\n",
+		pci_info(dev, "BEI %d res: %pR (from Enhanced Allocation, properties %#02x)\n",
 			   bei, res, prop);
 
 out:
@@ -4178,7 +4178,7 @@ int pci_set_cacheline_size(struct pci_dev *dev)
 	if (cacheline_size == pci_cache_line_size)
 		return 0;
 
-	pci_printk(KERN_DEBUG, dev, "cache line size of %d is not supported\n",
+	pci_info(dev, "cache line size of %d is not supported\n",
 		   pci_cache_line_size << 2);
 
 	return -EINVAL;

drivers/pci/probe.c

@@ -317,7 +317,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 	res->flags = 0;
 out:
 	if (res->flags)
-		pci_printk(KERN_DEBUG, dev, "reg 0x%x: %pR\n", pos, res);
+		pci_info(dev, "reg 0x%x: %pR\n", pos, res);
 
 	return (res->flags & IORESOURCE_MEM_64) ? 1 : 0;
 }
@@ -384,7 +384,7 @@ static void pci_read_bridge_io(struct pci_bus *child)
 		region.start = base;
 		region.end = limit + io_granularity - 1;
 		pcibios_bus_to_resource(dev->bus, res, &region);
-		pci_printk(KERN_DEBUG, dev, "  bridge window %pR\n", res);
+		pci_info(dev, "  bridge window %pR\n", res);
 	}
 }
 
@@ -406,7 +406,7 @@ static void pci_read_bridge_mmio(struct pci_bus *child)
 		region.start = base;
 		region.end = limit + 0xfffff;
 		pcibios_bus_to_resource(dev->bus, res, &region);
-		pci_printk(KERN_DEBUG, dev, "  bridge window %pR\n", res);
+		pci_info(dev, "  bridge window %pR\n", res);
 	}
 }
 
@@ -459,7 +459,7 @@ static void pci_read_bridge_mmio_pref(struct pci_bus *child)
 		region.start = base;
 		region.end = limit + 0xfffff;
 		pcibios_bus_to_resource(dev->bus, res, &region);
-		pci_printk(KERN_DEBUG, dev, "  bridge window %pR\n", res);
+		pci_info(dev, "  bridge window %pR\n", res);
 	}
 }
 
@@ -489,8 +489,7 @@ void pci_read_bridge_bases(struct pci_bus *child)
 			if (res && res->flags) {
 				pci_bus_add_resource(child, res,
 						     PCI_SUBTRACTIVE_DECODE);
-				pci_printk(KERN_DEBUG, dev,
-					   "  bridge window %pR (subtractive decode)\n",
+				pci_info(dev, "  bridge window %pR (subtractive decode)\n",
 					   res);
 			}
 		}
@@ -1614,7 +1613,7 @@ int pci_setup_device(struct pci_dev *dev)
 	dev->revision = class & 0xff;
 	dev->class = class >> 8;		    /* upper 3 bytes */
 
-	pci_printk(KERN_DEBUG, dev, "[%04x:%04x] type %02x class %#08x\n",
+	pci_info(dev, "[%04x:%04x] type %02x class %#08x\n",
 		   dev->vendor, dev->device, dev->hdr_type, dev->class);
 
 	if (pci_early_dump)
@@ -3010,7 +3009,7 @@ int pci_bus_insert_busn_res(struct pci_bus *b, int bus, int bus_max)
 	conflict = request_resource_conflict(parent_res, res);
 
 	if (conflict)
-		dev_printk(KERN_DEBUG, &b->dev,
+		dev_info(&b->dev,
 			   "busn_res: can not insert %pR under %s%pR (conflicts with %s %pR)\n",
 			    res, pci_is_root_bus(b) ? "domain " : "",
 			    parent_res, conflict->name, conflict);
@@ -3030,8 +3029,7 @@ int pci_bus_update_busn_res_end(struct pci_bus *b, int bus_max)
 
 	size = bus_max - res->start + 1;
 	ret = adjust_resource(res, res->start, size);
-	dev_printk(KERN_DEBUG, &b->dev,
-			"busn_res: %pR end %s updated to %02x\n",
+	dev_info(&b->dev, "busn_res: %pR end %s updated to %02x\n",
 			&old_res, ret ? "can not be" : "is", bus_max);
 
 	if (!ret && !res->parent)
@@ -3049,8 +3047,7 @@ void pci_bus_release_busn_res(struct pci_bus *b)
 		return;
 
 	ret = release_resource(res);
-	dev_printk(KERN_DEBUG, &b->dev,
-			"busn_res: %pR %s released\n",
+	dev_info(&b->dev, "busn_res: %pR %s released\n",
 			res, ret ? "can not be" : "is");
 }
 

drivers/pci/quirks.c

@@ -159,8 +159,7 @@ static int __init pci_apply_final_quirks(void)
 	u8 tmp;
 
 	if (pci_cache_line_size)
-		printk(KERN_DEBUG "PCI: CLS %u bytes\n",
-		       pci_cache_line_size << 2);
+		pr_info("PCI: CLS %u bytes\n", pci_cache_line_size << 2);
 
 	pci_apply_fixup_final_quirks = true;
 	for_each_pci_dev(dev) {
@@ -177,16 +176,16 @@ static int __init pci_apply_final_quirks(void)
 			if (!tmp || cls == tmp)
 				continue;
 
-			pci_printk(KERN_DEBUG, dev, "CLS mismatch (%u != %u), using %u bytes\n",
-				   cls << 2, tmp << 2,
-				   pci_dfl_cache_line_size << 2);
+			pci_info(dev, "CLS mismatch (%u != %u), using %u bytes\n",
+			         cls << 2, tmp << 2,
+				 pci_dfl_cache_line_size << 2);
 			pci_cache_line_size = pci_dfl_cache_line_size;
 		}
 	}
 
 	if (!pci_cache_line_size) {
-		printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n",
-		       cls << 2, pci_dfl_cache_line_size << 2);
+		pr_info("PCI: CLS %u bytes, default %u\n", cls << 2,
+			pci_dfl_cache_line_size << 2);
 		pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size;
 	}
 

drivers/pci/setup-bus.c

@@ -255,10 +255,9 @@ static void reassign_resources_sorted(struct list_head *realloc_head,
 				 (IORESOURCE_STARTALIGN|IORESOURCE_SIZEALIGN);
 			if (pci_reassign_resource(add_res->dev, idx,
 						  add_size, align))
-				pci_printk(KERN_DEBUG, add_res->dev,
-					   "failed to add %llx res[%d]=%pR\n",
-					   (unsigned long long)add_size,
-					   idx, res);
+				pci_info(add_res->dev, "failed to add %llx res[%d]=%pR\n",
+					 (unsigned long long) add_size, idx,
+					 res);
 		}
 out:
 		list_del(&add_res->list);
@@ -951,9 +950,9 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
 	if (size1 > size0 && realloc_head) {
 		add_to_list(realloc_head, bus->self, b_res, size1-size0,
 			    min_align);
-		pci_printk(KERN_DEBUG, bus->self, "bridge window %pR to %pR add_size %llx\n",
-			   b_res, &bus->busn_res,
-			   (unsigned long long)size1-size0);
+		pci_info(bus->self, "bridge window %pR to %pR add_size %llx\n",
+			 b_res, &bus->busn_res,
+			 (unsigned long long) size1 - size0);
 	}
 }
 
@@ -1098,7 +1097,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
 	b_res->flags |= IORESOURCE_STARTALIGN;
 	if (size1 > size0 && realloc_head) {
 		add_to_list(realloc_head, bus->self, b_res, size1-size0, add_align);
-		pci_printk(KERN_DEBUG, bus->self, "bridge window %pR to %pR add_size %llx add_align %llx\n",
+		pci_info(bus->self, "bridge window %pR to %pR add_size %llx add_align %llx\n",
 			   b_res, &bus->busn_res,
 			   (unsigned long long) (size1 - size0),
 			   (unsigned long long) add_align);
@@ -1566,8 +1565,8 @@ static void pci_bridge_release_resources(struct pci_bus *bus,
 	release_child_resources(r);
 	if (!release_resource(r)) {
 		type = old_flags = r->flags & PCI_RES_TYPE_MASK;
-		pci_printk(KERN_DEBUG, dev, "resource %d %pR released\n",
-					PCI_BRIDGE_RESOURCES + idx, r);
+		pci_info(dev, "resource %d %pR released\n",
+			 PCI_BRIDGE_RESOURCES + idx, r);
 		/* keep the old size */
 		r->end = resource_size(r) - 1;
 		r->start = 0;
@@ -1631,7 +1630,7 @@ static void pci_bus_dump_res(struct pci_bus *bus)
 		if (!res || !res->end || !res->flags)
 			continue;
 
-		dev_printk(KERN_DEBUG, &bus->dev, "resource %d %pR\n", i, res);
+		dev_info(&bus->dev, "resource %d %pR\n", i, res);
 	}
 }
 
@@ -1765,9 +1764,8 @@ void pci_assign_unassigned_root_bus_resources(struct pci_bus *bus)
 		int max_depth = pci_bus_get_depth(bus);
 
 		pci_try_num = max_depth + 1;
-		dev_printk(KERN_DEBUG, &bus->dev,
-			   "max bus depth: %d pci_try_num: %d\n",
-			   max_depth, pci_try_num);
+		dev_info(&bus->dev, "max bus depth: %d pci_try_num: %d\n",
+			 max_depth, pci_try_num);
 	}
 
 again:
@@ -1801,8 +1799,8 @@ void pci_assign_unassigned_root_bus_resources(struct pci_bus *bus)
 		goto dump;
 	}
 
-	dev_printk(KERN_DEBUG, &bus->dev,
-		   "No. %d try to assign unassigned res\n", tried_times + 1);
+	dev_info(&bus->dev, "No. %d try to assign unassigned res\n",
+		 tried_times + 1);
 
 	/* third times and later will not check if it is leaf */
 	if ((tried_times + 1) > 2)

drivers/pci/xen-pcifront.c

@@ -291,8 +291,7 @@ static int pci_frontend_enable_msix(struct pci_dev *dev,
 				vector[i] = op.msix_entries[i].vector;
 			}
 		} else {
-			printk(KERN_DEBUG "enable msix get value %x\n",
-				op.value);
+			pr_info("enable msix get value %x\n", op.value);
 			err = op.value;
 		}
 	} else {
@@ -364,12 +363,12 @@ static void pci_frontend_disable_msi(struct pci_dev *dev)
 	err = do_pci_op(pdev, &op);
 	if (err == XEN_PCI_ERR_dev_not_found) {
 		/* XXX No response from backend, what shall we do? */
-		printk(KERN_DEBUG "get no response from backend for disable MSI\n");
+		pr_info("get no response from backend for disable MSI\n");
 		return;
 	}
 	if (err)
 		/* how can pciback notify us fail? */
-		printk(KERN_DEBUG "get fake response frombackend\n");
+		pr_info("get fake response from backend\n");
 }
 
 static struct xen_pci_frontend_ops pci_frontend_ops = {