xen/pciback: Cleanup the driver based on checkpatch warnings and errors.

Checkpatch found some extra warnings and errors. This mega
patch fixes them all in one big swoop. We also spruce
up the pcistub_ids to use DEFINE_PCI_DEVICE_TABLE macro
(suggested by Jan Beulich).

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
diff --git a/drivers/xen/xen-pciback/conf_space.c b/drivers/xen/xen-pciback/conf_space.c
index 370c18e..eb6bba0 100644
--- a/drivers/xen/xen-pciback/conf_space.c
+++ b/drivers/xen/xen-pciback/conf_space.c
@@ -18,8 +18,8 @@
 static int permissive;
 module_param(permissive, bool, 0644);
 
-#define DEFINE_PCI_CONFIG(op, size, type) 			\
-int pciback_##op##_config_##size 				\
+#define DEFINE_PCI_CONFIG(op, size, type)			\
+int pciback_##op##_config_##size				\
 (struct pci_dev *dev, int offset, type value, void *data)	\
 {								\
 	return pci_##op##_config_##size(dev, offset, value);	\
diff --git a/drivers/xen/xen-pciback/conf_space_header.c b/drivers/xen/xen-pciback/conf_space_header.c
index 3ae7da1..40166e0 100644
--- a/drivers/xen/xen-pciback/conf_space_header.c
+++ b/drivers/xen/xen-pciback/conf_space_header.c
@@ -249,27 +249,27 @@
 	{}
 };
 
-#define CFG_FIELD_BAR(reg_offset) 			\
-	{ 						\
-	 .offset     = reg_offset, 			\
-	 .size       = 4, 				\
-	 .init       = bar_init, 			\
-	 .reset      = bar_reset, 			\
-	 .release    = bar_release, 			\
-	 .u.dw.read  = bar_read, 			\
-	 .u.dw.write = bar_write, 			\
-	 }
+#define CFG_FIELD_BAR(reg_offset)			\
+	{						\
+	.offset     = reg_offset,			\
+	.size       = 4,				\
+	.init       = bar_init,				\
+	.reset      = bar_reset,			\
+	.release    = bar_release,			\
+	.u.dw.read  = bar_read,				\
+	.u.dw.write = bar_write,			\
+	}
 
-#define CFG_FIELD_ROM(reg_offset) 			\
-	{ 						\
-	 .offset     = reg_offset, 			\
-	 .size       = 4, 				\
-	 .init       = rom_init, 			\
-	 .reset      = bar_reset, 			\
-	 .release    = bar_release, 			\
-	 .u.dw.read  = bar_read, 			\
-	 .u.dw.write = rom_write, 			\
-	 }
+#define CFG_FIELD_ROM(reg_offset)			\
+	{						\
+	.offset     = reg_offset,			\
+	.size       = 4,				\
+	.init       = rom_init,				\
+	.reset      = bar_reset,			\
+	.release    = bar_release,			\
+	.u.dw.read  = bar_read,				\
+	.u.dw.write = rom_write,			\
+	}
 
 static const struct config_field header_0[] = {
 	CFG_FIELD_BAR(PCI_BASE_ADDRESS_0),
diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c
index 0b5a16b..e7853c3 100644
--- a/drivers/xen/xen-pciback/pci_stub.c
+++ b/drivers/xen/xen-pciback/pci_stub.c
@@ -13,7 +13,7 @@
 #include <linux/pci.h>
 #include <linux/wait.h>
 #include <linux/sched.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <xen/events.h>
 #include <asm/xen/pci.h>
 #include <asm/xen/hypervisor.h>
@@ -486,7 +486,7 @@
 	}
 }
 
-static const struct pci_device_id pcistub_ids[] = {
+static DEFINE_PCI_DEVICE_TABLE(pcistub_ids) = {
 	{
 	 .vendor = PCI_ANY_ID,
 	 .device = PCI_ANY_ID,
@@ -592,7 +592,7 @@
 	if (test_bit(_XEN_PCIF_active,
 		(unsigned long *)&psdev->pdev->sh_info->flags)) {
 		dev_dbg(&psdev->dev->dev,
-			"schedule pci_conf service in pciback \n");
+			"schedule pci_conf service in pciback\n");
 		test_and_schedule_op(psdev->pdev);
 	}
 
diff --git a/drivers/xen/xen-pciback/pciback.h b/drivers/xen/xen-pciback/pciback.h
index 98e2912..c1e95e8 100644
--- a/drivers/xen/xen-pciback/pciback.h
+++ b/drivers/xen/xen-pciback/pciback.h
@@ -12,7 +12,7 @@
 #include <linux/list.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <xen/interface/io/pciif.h>
 
 struct pci_dev_entry {
@@ -20,8 +20,8 @@
 	struct pci_dev *dev;
 };
 
-#define _PDEVF_op_active 	(0)
-#define PDEVF_op_active 	(1<<(_PDEVF_op_active))
+#define _PDEVF_op_active	(0)
+#define PDEVF_op_active		(1<<(_PDEVF_op_active))
 #define _PCIB_op_pending	(1)
 #define PCIB_op_pending		(1<<(_PCIB_op_pending))
 
diff --git a/drivers/xen/xen-pciback/xenbus.c b/drivers/xen/xen-pciback/xenbus.c
index af6c25a..c0984cb 100644
--- a/drivers/xen/xen-pciback/xenbus.c
+++ b/drivers/xen/xen-pciback/xenbus.c
@@ -683,20 +683,20 @@
 };
 
 static struct xenbus_driver xenbus_pciback_driver = {
-	.name 			= "pciback",
-	.owner 			= THIS_MODULE,
-	.ids 			= xenpci_ids,
-	.probe 			= pciback_xenbus_probe,
-	.remove 		= pciback_xenbus_remove,
-	.otherend_changed 	= pciback_frontend_changed,
+	.name			= "pciback",
+	.owner			= THIS_MODULE,
+	.ids			= xenpci_ids,
+	.probe			= pciback_xenbus_probe,
+	.remove			= pciback_xenbus_remove,
+	.otherend_changed	= pciback_frontend_changed,
 };
 
 int __init pciback_xenbus_register(void)
 {
 	pciback_wq = create_workqueue("pciback_workqueue");
 	if (!pciback_wq) {
-		printk(KERN_ERR "pciback_xenbus_register: create"
-			"pciback_workqueue failed\n");
+		printk(KERN_ERR "%s: create"
+			"pciback_workqueue failed\n", __func__);
 		return -EFAULT;
 	}
 	return xenbus_register_backend(&xenbus_pciback_driver);