PCI: Use dev_printk() when possible

task #29600094

commit 7db4af43c97b68dc65394c799b86cdd0fffe5f8d upstream.
Backport summary: for 4.19 kernel ICX PCIe Gen4 support.

Use dev_printk() when possible.  This makes messages more consistent with
other device-related messages and, in some cases, adds useful information.
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
(cherry picked from commit 7db4af43c97b68dc65394c799b86cdd0fffe5f8d)
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/pci-sysfs.c

@@ -1112,8 +1112,7 @@ void pci_create_legacy_files(struct pci_bus *b)
 	kfree(b->legacy_io);
 	b->legacy_io = NULL;
 kzalloc_err:
-	printk(KERN_WARNING "pci: warning: could not create legacy I/O port and ISA memory resources to sysfs\n");
-	return;
+	dev_warn(&b->dev, "could not create legacy I/O port and ISA memory resources in sysfs\n");
 }
 
 void pci_remove_legacy_files(struct pci_bus *b)

drivers/pci/quirks.c

@@ -177,7 +177,7 @@ static int __init pci_apply_final_quirks(void)
 			if (!tmp || cls == tmp)
 				continue;
 
-			printk(KERN_DEBUG "PCI: CLS mismatch (%u != %u), using %u bytes\n",
+			pci_printk(KERN_DEBUG, 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;