Merge tag 'for-linus-5.8b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen updates from Juergen Gross:

 - several smaller cleanups

 - a fix for a Xen guest regression with CPU offlining

 - a small fix in the xen pvcalls backend driver

 - an update of MAINTAINERS

* tag 'for-linus-5.8b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  MAINTAINERS: Update PARAVIRT_OPS_INTERFACE and VMWARE_HYPERVISOR_INTERFACE
  xen/pci: Get rid of verbose_request and use dev_dbg() instead
  xenbus: Use dev_printk() when possible
  xen-pciback: Use dev_printk() when possible
  xen: enable BALLOON_MEMORY_HOTPLUG by default
  xen: expand BALLOON_MEMORY_HOTPLUG description
  xen/pvcalls: Make pvcalls_back_global static
  xen/cpuhotplug: Fix initial CPU offlining for PV(H) guests
  xen-platform: Constify dev_pm_ops
  xen/pvcalls-back: test for errors when calling backend_connect()

14 files changed, 90 insertions, 142 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 510fa7f7c75683..58bc99a57d95f1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12911,7 +12911,7 @@ F:	include/uapi/linux/ppdev.h
 
 PARAVIRT_OPS INTERFACE
 M:	Juergen Gross <jgross@suse.com>
-M:	Thomas Hellstrom <thellstrom@vmware.com>
+M:	Deep Shah <sdeep@vmware.com>
 M:	"VMware, Inc." <pv-drivers@vmware.com>
 L:	virtualization@lists.linux-foundation.org
 S:	Supported
@@ -18287,7 +18287,7 @@ S:	Maintained
 F:	drivers/misc/vmw_balloon.c
 
 VMWARE HYPERVISOR INTERFACE
-M:	Thomas Hellstrom <thellstrom@vmware.com>
+M:	Deep Shah <sdeep@vmware.com>
 M:	"VMware, Inc." <pv-drivers@vmware.com>
 L:	virtualization@lists.linux-foundation.org
 S:	Supported
diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index d1b16cf3403f45..fab267e359e740 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -77,9 +77,6 @@ static inline void pcifront_init_sd(struct pcifront_sd *sd,
 static DEFINE_SPINLOCK(pcifront_dev_lock);
 static struct pcifront_device *pcifront_dev;
 
-static int verbose_request;
-module_param(verbose_request, int, 0644);
-
 static int errno_to_pcibios_err(int errno)
 {
 	switch (errno) {
@@ -190,18 +187,16 @@ static int pcifront_bus_read(struct pci_bus *bus, unsigned int devfn,
 	struct pcifront_sd *sd = bus->sysdata;
 	struct pcifront_device *pdev = pcifront_get_pdev(sd);
 
-	if (verbose_request)
-		dev_info(&pdev->xdev->dev,
-			 "read dev=%04x:%02x:%02x.%d - offset %x size %d\n",
-			 pci_domain_nr(bus), bus->number, PCI_SLOT(devfn),
-			 PCI_FUNC(devfn), where, size);
+	dev_dbg(&pdev->xdev->dev,
+		"read dev=%04x:%02x:%02x.%d - offset %x size %d\n",
+		pci_domain_nr(bus), bus->number, PCI_SLOT(devfn),
+		PCI_FUNC(devfn), where, size);
 
 	err = do_pci_op(pdev, &op);
 
 	if (likely(!err)) {
-		if (verbose_request)
-			dev_info(&pdev->xdev->dev, "read got back value %x\n",
-				 op.value);
+		dev_dbg(&pdev->xdev->dev, "read got back value %x\n",
+			op.value);
 
 		*val = op.value;
 	} else if (err == -ENODEV) {
@@ -229,12 +224,10 @@ static int pcifront_bus_write(struct pci_bus *bus, unsigned int devfn,
 	struct pcifront_sd *sd = bus->sysdata;
 	struct pcifront_device *pdev = pcifront_get_pdev(sd);
 
-	if (verbose_request)
-		dev_info(&pdev->xdev->dev,
-			 "write dev=%04x:%02x:%02x.%d - "
-			 "offset %x size %d val %x\n",
-			 pci_domain_nr(bus), bus->number,
-			 PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, val);
+	dev_dbg(&pdev->xdev->dev,
+		"write dev=%04x:%02x:%02x.%d - offset %x size %d val %x\n",
+		pci_domain_nr(bus), bus->number,
+		PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, val);
 
 	return errno_to_pcibios_err(do_pci_op(pdev, &op));
 }
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index 61212fc7f0c704..727f11eb46b2bf 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -13,12 +13,16 @@ config XEN_BALLOON
 config XEN_BALLOON_MEMORY_HOTPLUG
 	bool "Memory hotplug support for Xen balloon driver"
 	depends on XEN_BALLOON && MEMORY_HOTPLUG
+	default y
 	help
 	  Memory hotplug support for Xen balloon driver allows expanding memory
 	  available for the system above limit declared at system startup.
 	  It is very useful on critical systems which require long
 	  run without rebooting.
 
+	  It's also very useful for non PV domains to obtain unpopulated physical
+	  memory ranges to use in order to map foreign memory or grants.
+
 	  Memory could be hotplugged in following steps:
 
 	    1) target domain: ensure that memory auto online policy is in
diff --git a/drivers/xen/cpu_hotplug.c b/drivers/xen/cpu_hotplug.c
index ec975decb5def4..b96b11e2b571d1 100644
--- a/drivers/xen/cpu_hotplug.c
+++ b/drivers/xen/cpu_hotplug.c
@@ -93,10 +93,8 @@ static int setup_cpu_watcher(struct notifier_block *notifier,
 	(void)register_xenbus_watch(&cpu_watch);
 
 	for_each_possible_cpu(cpu) {
-		if (vcpu_online(cpu) == 0) {
-			device_offline(get_cpu_device(cpu));
-			set_cpu_present(cpu, false);
-		}
+		if (vcpu_online(cpu) == 0)
+			disable_hotplug_cpu(cpu);
 	}
 
 	return NOTIFY_DONE;
@@ -119,5 +117,5 @@ static int __init setup_vcpu_hotplug_event(void)
 	return 0;
 }
 
-arch_initcall(setup_vcpu_hotplug_event);
+late_initcall(setup_vcpu_hotplug_event);
 
diff --git a/drivers/xen/platform-pci.c b/drivers/xen/platform-pci.c
index 59e85e408c23a5..dd911e1ff782cc 100644
--- a/drivers/xen/platform-pci.c
+++ b/drivers/xen/platform-pci.c
@@ -168,7 +168,7 @@ static const struct pci_device_id platform_pci_tbl[] = {
 	{0,}
 };
 
-static struct dev_pm_ops platform_pm_ops = {
+static const struct dev_pm_ops platform_pm_ops = {
 	.resume_noirq =   platform_pci_resume,
 };
 
diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c
index cf4ce3e9358d62..9eae1fceec1e56 100644
--- a/drivers/xen/pvcalls-back.c
+++ b/drivers/xen/pvcalls-back.c
@@ -24,7 +24,7 @@
 #define PVCALLS_VERSIONS "1"
 #define MAX_RING_ORDER XENBUS_MAX_RING_GRANT_ORDER
 
-struct pvcalls_back_global {
+static struct pvcalls_back_global {
 	struct list_head frontends;
 	struct semaphore frontends_lock;
 } pvcalls_back_global;
@@ -1088,7 +1088,8 @@ static void set_backend_state(struct xenbus_device *dev,
 		case XenbusStateInitialised:
 			switch (state) {
 			case XenbusStateConnected:
-				backend_connect(dev);
+				if (backend_connect(dev))
+					return;
 				xenbus_switch_state(dev, XenbusStateConnected);
 				break;
 			case XenbusStateClosing:
diff --git a/drivers/xen/xen-pciback/conf_space.c b/drivers/xen/xen-pciback/conf_space.c
index da51a5d34e6e2b..059de92aea7d0f 100644
--- a/drivers/xen/xen-pciback/conf_space.c
+++ b/drivers/xen/xen-pciback/conf_space.c
@@ -10,6 +10,8 @@
  * Author: Ryan Wilson <hap9@epoch.ncsc.mil>
  */
 
+#define dev_fmt(fmt) DRV_NAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/moduleparam.h>
 #include <linux/pci.h>
@@ -154,9 +156,7 @@ int xen_pcibk_config_read(struct pci_dev *dev, int offset, int size,
 	 * (as if device didn't respond) */
 	u32 value = 0, tmp_val;
 
-	if (unlikely(verbose_request))
-		printk(KERN_DEBUG DRV_NAME ": %s: read %d bytes at 0x%x\n",
-		       pci_name(dev), size, offset);
+	dev_dbg(&dev->dev, "read %d bytes at 0x%x\n", size, offset);
 
 	if (!valid_request(offset, size)) {
 		err = XEN_PCI_ERR_invalid_offset;
@@ -195,9 +195,7 @@ int xen_pcibk_config_read(struct pci_dev *dev, int offset, int size,
 	}
 
 out:
-	if (unlikely(verbose_request))
-		printk(KERN_DEBUG DRV_NAME ": %s: read %d bytes at 0x%x = %x\n",
-		       pci_name(dev), size, offset, value);
+	dev_dbg(&dev->dev, "read %d bytes at 0x%x = %x\n", size, offset, value);
 
 	*ret_val = value;
 	return xen_pcibios_err_to_errno(err);
@@ -212,10 +210,8 @@ int xen_pcibk_config_write(struct pci_dev *dev, int offset, int size, u32 value)
 	u32 tmp_val;
 	int field_start, field_end;
 
-	if (unlikely(verbose_request))
-		printk(KERN_DEBUG
-		       DRV_NAME ": %s: write request %d bytes at 0x%x = %x\n",
-		       pci_name(dev), size, offset, value);
+	dev_dbg(&dev->dev, "write request %d bytes at 0x%x = %x\n",
+		size, offset, value);
 
 	if (!valid_request(offset, size))
 		return XEN_PCI_ERR_invalid_offset;
diff --git a/drivers/xen/xen-pciback/conf_space_header.c b/drivers/xen/xen-pciback/conf_space_header.c
index fb4fccb4aeccfb..ac45cdc38e8597 100644
--- a/drivers/xen/xen-pciback/conf_space_header.c
+++ b/drivers/xen/xen-pciback/conf_space_header.c
@@ -6,6 +6,7 @@
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#define dev_fmt pr_fmt
 
 #include <linux/kernel.h>
 #include <linux/pci.h>
@@ -67,53 +68,39 @@ static int command_write(struct pci_dev *dev, int offset, u16 value, void *data)
 
 	dev_data = pci_get_drvdata(dev);
 	if (!pci_is_enabled(dev) && is_enable_cmd(value)) {
-		if (unlikely(verbose_request))
-			printk(KERN_DEBUG DRV_NAME ": %s: enable\n",
-			       pci_name(dev));
+		dev_dbg(&dev->dev, "enable\n");
 		err = pci_enable_device(dev);
 		if (err)
 			return err;
 		if (dev_data)
 			dev_data->enable_intx = 1;
 	} else if (pci_is_enabled(dev) && !is_enable_cmd(value)) {
-		if (unlikely(verbose_request))
-			printk(KERN_DEBUG DRV_NAME ": %s: disable\n",
-			       pci_name(dev));
+		dev_dbg(&dev->dev, "disable\n");
 		pci_disable_device(dev);
 		if (dev_data)
 			dev_data->enable_intx = 0;
 	}
 
 	if (!dev->is_busmaster && is_master_cmd(value)) {
-		if (unlikely(verbose_request))
-			printk(KERN_DEBUG DRV_NAME ": %s: set bus master\n",
-			       pci_name(dev));
+		dev_dbg(&dev->dev, "set bus master\n");
 		pci_set_master(dev);
 	} else if (dev->is_busmaster && !is_master_cmd(value)) {
-		if (unlikely(verbose_request))
-			printk(KERN_DEBUG DRV_NAME ": %s: clear bus master\n",
-			       pci_name(dev));
+		dev_dbg(&dev->dev, "clear bus master\n");
 		pci_clear_master(dev);
 	}
 
 	if (!(cmd->val & PCI_COMMAND_INVALIDATE) &&
 	    (value & PCI_COMMAND_INVALIDATE)) {
-		if (unlikely(verbose_request))
-			printk(KERN_DEBUG
-			       DRV_NAME ": %s: enable memory-write-invalidate\n",
-			       pci_name(dev));
+		dev_dbg(&dev->dev, "enable memory-write-invalidate\n");
 		err = pci_set_mwi(dev);
 		if (err) {
-			pr_warn("%s: cannot enable memory-write-invalidate (%d)\n",
-				pci_name(dev), err);
+			dev_warn(&dev->dev, "cannot enable memory-write-invalidate (%d)\n",
+				err);
 			value &= ~PCI_COMMAND_INVALIDATE;
 		}
 	} else if ((cmd->val & PCI_COMMAND_INVALIDATE) &&
 		   !(value & PCI_COMMAND_INVALIDATE)) {
-		if (unlikely(verbose_request))
-			printk(KERN_DEBUG
-			       DRV_NAME ": %s: disable memory-write-invalidate\n",
-			       pci_name(dev));
+		dev_dbg(&dev->dev, "disable memory-write-invalidate\n");
 		pci_clear_mwi(dev);
 	}
 
@@ -157,8 +144,7 @@ static int rom_write(struct pci_dev *dev, int offset, u32 value, void *data)
 	struct pci_bar_info *bar = data;
 
 	if (unlikely(!bar)) {
-		pr_warn(DRV_NAME ": driver data not found for %s\n",
-		       pci_name(dev));
+		dev_warn(&dev->dev, "driver data not found\n");
 		return XEN_PCI_ERR_op_failed;
 	}
 
@@ -194,8 +180,7 @@ static int bar_write(struct pci_dev *dev, int offset, u32 value, void *data)
 	u32 mask;
 
 	if (unlikely(!bar)) {
-		pr_warn(DRV_NAME ": driver data not found for %s\n",
-		       pci_name(dev));
+		dev_warn(&dev->dev, "driver data not found\n");
 		return XEN_PCI_ERR_op_failed;
 	}
 
@@ -228,8 +213,7 @@ static int bar_read(struct pci_dev *dev, int offset, u32 * value, void *data)
 	struct pci_bar_info *bar = data;
 
 	if (unlikely(!bar)) {
-		pr_warn(DRV_NAME ": driver data not found for %s\n",
-		       pci_name(dev));
+		dev_warn(&dev->dev, "driver data not found\n");
 		return XEN_PCI_ERR_op_failed;
 	}
 
@@ -433,8 +417,8 @@ int xen_pcibk_config_header_add_fields(struct pci_dev *dev)
 
 	default:
 		err = -EINVAL;
-		pr_err("%s: Unsupported header type %d!\n",
-		       pci_name(dev), dev->hdr_type);
+		dev_err(&dev->dev, "Unsupported header type %d!\n",
+			dev->hdr_type);
 		break;
 	}
 
diff --git a/drivers/xen/xen-pciback/conf_space_quirks.c b/drivers/xen/xen-pciback/conf_space_quirks.c
index ed593d1042a6e0..7dc2810863024f 100644
--- a/drivers/xen/xen-pciback/conf_space_quirks.c
+++ b/drivers/xen/xen-pciback/conf_space_quirks.c
@@ -6,6 +6,8 @@
  * Author: Chris Bookholt <hap10@epoch.ncsc.mil>
  */
 
+#define dev_fmt(fmt) DRV_NAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include "pciback.h"
@@ -35,8 +37,8 @@ static struct xen_pcibk_config_quirk *xen_pcibk_find_quirk(struct pci_dev *dev)
 		if (match_one_device(&tmp_quirk->devid, dev) != NULL)
 			goto out;
 	tmp_quirk = NULL;
-	printk(KERN_DEBUG DRV_NAME
-	       ": quirk didn't match any device known\n");
+	dev_printk(KERN_DEBUG, &dev->dev,
+		   "quirk didn't match any device known\n");
 out:
 	return tmp_quirk;
 }
diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c
index 7af93d65ed51ff..e876c3d6dad1f9 100644
--- a/drivers/xen/xen-pciback/pci_stub.c
+++ b/drivers/xen/xen-pciback/pci_stub.c
@@ -6,6 +6,7 @@
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#define dev_fmt pr_fmt
 
 #include <linux/module.h>
 #include <linux/init.h>
@@ -626,11 +627,11 @@ static void pcistub_remove(struct pci_dev *dev)
 		if (found_psdev->pdev) {
 			int domid = xen_find_device_domain_owner(dev);
 
-			pr_warn("****** removing device %s while still in-use by domain %d! ******\n",
+			dev_warn(&dev->dev, "****** removing device %s while still in-use by domain %d! ******\n",
 			       pci_name(found_psdev->dev), domid);
-			pr_warn("****** driver domain may still access this device's i/o resources!\n");
-			pr_warn("****** shutdown driver domain before binding device\n");
-			pr_warn("****** to other drivers or domains\n");
+			dev_warn(&dev->dev, "****** driver domain may still access this device's i/o resources!\n");
+			dev_warn(&dev->dev, "****** shutdown driver domain before binding device\n");
+			dev_warn(&dev->dev, "****** to other drivers or domains\n");
 
 			/* N.B. This ends up calling pcistub_put_pci_dev which ends up
 			 * doing the FLR. */
@@ -711,14 +712,12 @@ static pci_ers_result_t common_process(struct pcistub_device *psdev,
 	ret = xen_pcibk_get_pcifront_dev(psdev->dev, psdev->pdev,
 		&aer_op->domain, &aer_op->bus, &aer_op->devfn);
 	if (!ret) {
-		dev_err(&psdev->dev->dev,
-			DRV_NAME ": failed to get pcifront device\n");
+		dev_err(&psdev->dev->dev, "failed to get pcifront device\n");
 		return PCI_ERS_RESULT_NONE;
 	}
 	wmb();
 
-	dev_dbg(&psdev->dev->dev,
-			DRV_NAME ": aer_op %x dom %x bus %x devfn %x\n",
+	dev_dbg(&psdev->dev->dev, "aer_op %x dom %x bus %x devfn %x\n",
 			aer_cmd, aer_op->domain, aer_op->bus, aer_op->devfn);
 	/*local flag to mark there's aer request, xen_pcibk callback will use
 	* this flag to judge whether we need to check pci-front give aer
@@ -754,8 +753,7 @@ static pci_ers_result_t common_process(struct pcistub_device *psdev,
 
 	if (test_bit(_XEN_PCIF_active,
 		(unsigned long *)&sh_info->flags)) {
-		dev_dbg(&psdev->dev->dev,
-			"schedule pci_conf service in " DRV_NAME "\n");
+		dev_dbg(&psdev->dev->dev, "schedule pci_conf service\n");
 		xen_pcibk_test_and_schedule_op(psdev->pdev);
 	}
 
@@ -786,13 +784,12 @@ static pci_ers_result_t xen_pcibk_slot_reset(struct pci_dev *dev)
 				PCI_FUNC(dev->devfn));
 
 	if (!psdev || !psdev->pdev) {
-		dev_err(&dev->dev,
-			DRV_NAME " device is not found/assigned\n");
+		dev_err(&dev->dev, "device is not found/assigned\n");
 		goto end;
 	}
 
 	if (!psdev->pdev->sh_info) {
-		dev_err(&dev->dev, DRV_NAME " device is not connected or owned"
+		dev_err(&dev->dev, "device is not connected or owned"
 			" by HVM, kill it\n");
 		kill_domain_by_device(psdev);
 		goto end;
@@ -844,13 +841,12 @@ static pci_ers_result_t xen_pcibk_mmio_enabled(struct pci_dev *dev)
 				PCI_FUNC(dev->devfn));
 
 	if (!psdev || !psdev->pdev) {
-		dev_err(&dev->dev,
-			DRV_NAME " device is not found/assigned\n");
+		dev_err(&dev->dev, "device is not found/assigned\n");
 		goto end;
 	}
 
 	if (!psdev->pdev->sh_info) {
-		dev_err(&dev->dev, DRV_NAME " device is not connected or owned"
+		dev_err(&dev->dev, "device is not connected or owned"
 			" by HVM, kill it\n");
 		kill_domain_by_device(psdev);
 		goto end;
@@ -902,13 +898,12 @@ static pci_ers_result_t xen_pcibk_error_detected(struct pci_dev *dev,
 				PCI_FUNC(dev->devfn));
 
 	if (!psdev || !psdev->pdev) {
-		dev_err(&dev->dev,
-			DRV_NAME " device is not found/assigned\n");
+		dev_err(&dev->dev, "device is not found/assigned\n");
 		goto end;
 	}
 
 	if (!psdev->pdev->sh_info) {
-		dev_err(&dev->dev, DRV_NAME " device is not connected or owned"
+		dev_err(&dev->dev, "device is not connected or owned"
 			" by HVM, kill it\n");
 		kill_domain_by_device(psdev);
 		goto end;
@@ -956,13 +951,12 @@ static void xen_pcibk_error_resume(struct pci_dev *dev)
 				PCI_FUNC(dev->devfn));
 
 	if (!psdev || !psdev->pdev) {
-		dev_err(&dev->dev,
-			DRV_NAME " device is not found/assigned\n");
+		dev_err(&dev->dev, "device is not found/assigned\n");
 		goto end;
 	}
 
 	if (!psdev->pdev->sh_info) {
-		dev_err(&dev->dev, DRV_NAME " device is not connected or owned"
+		dev_err(&dev->dev, "device is not connected or owned"
 			" by HVM, kill it\n");
 		kill_domain_by_device(psdev);
 		goto end;
diff --git a/drivers/xen/xen-pciback/pciback.h b/drivers/xen/xen-pciback/pciback.h
index 7c95516a860fa3..f1ed2dbf685cb0 100644
--- a/drivers/xen/xen-pciback/pciback.h
+++ b/drivers/xen/xen-pciback/pciback.h
@@ -186,8 +186,6 @@ void xen_pcibk_do_op(struct work_struct *data);
 int xen_pcibk_xenbus_register(void);
 void xen_pcibk_xenbus_unregister(void);
 
-extern int verbose_request;
-
 void xen_pcibk_test_and_schedule_op(struct xen_pcibk_device *pdev);
 #endif
 
diff --git a/drivers/xen/xen-pciback/pciback_ops.c b/drivers/xen/xen-pciback/pciback_ops.c
index 787966f445895b..e11a7438e1a255 100644
--- a/drivers/xen/xen-pciback/pciback_ops.c
+++ b/drivers/xen/xen-pciback/pciback_ops.c
@@ -6,6 +6,7 @@
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#define dev_fmt pr_fmt
 
 #include <linux/moduleparam.h>
 #include <linux/wait.h>
@@ -14,9 +15,6 @@
 #include <linux/sched.h>
 #include "pciback.h"
 
-int verbose_request;
-module_param(verbose_request, int, 0644);
-
 static irqreturn_t xen_pcibk_guest_interrupt(int irq, void *dev_id);
 
 /* Ensure a device is has the fake IRQ handler "turned on/off" and is
@@ -147,9 +145,6 @@ int xen_pcibk_enable_msi(struct xen_pcibk_device *pdev,
 	struct xen_pcibk_dev_data *dev_data;
 	int status;
 
-	if (unlikely(verbose_request))
-		printk(KERN_DEBUG DRV_NAME ": %s: enable MSI\n", pci_name(dev));
-
 	if (dev->msi_enabled)
 		status = -EALREADY;
 	else if (dev->msix_enabled)
@@ -158,9 +153,8 @@ int xen_pcibk_enable_msi(struct xen_pcibk_device *pdev,
 		status = pci_enable_msi(dev);
 
 	if (status) {
-		pr_warn_ratelimited("%s: error enabling MSI for guest %u: err %d\n",
-				    pci_name(dev), pdev->xdev->otherend_id,
-				    status);
+		dev_warn_ratelimited(&dev->dev, "error enabling MSI for guest %u: err %d\n",
+				     pdev->xdev->otherend_id, status);
 		op->value = 0;
 		return XEN_PCI_ERR_op_failed;
 	}
@@ -169,9 +163,8 @@ int xen_pcibk_enable_msi(struct xen_pcibk_device *pdev,
 	 * the local domain's IRQ number. */
 
 	op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;
-	if (unlikely(verbose_request))
-		printk(KERN_DEBUG DRV_NAME ": %s: MSI: %d\n", pci_name(dev),
-			op->value);
+
+	dev_dbg(&dev->dev, "MSI: %d\n", op->value);
 
 	dev_data = pci_get_drvdata(dev);
 	if (dev_data)
@@ -184,10 +177,6 @@ static
 int xen_pcibk_disable_msi(struct xen_pcibk_device *pdev,
 			  struct pci_dev *dev, struct xen_pci_op *op)
 {
-	if (unlikely(verbose_request))
-		printk(KERN_DEBUG DRV_NAME ": %s: disable MSI\n",
-		       pci_name(dev));
-
 	if (dev->msi_enabled) {
 		struct xen_pcibk_dev_data *dev_data;
 
@@ -198,9 +187,9 @@ int xen_pcibk_disable_msi(struct xen_pcibk_device *pdev,
 			dev_data->ack_intr = 1;
 	}
 	op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;
-	if (unlikely(verbose_request))
-		printk(KERN_DEBUG DRV_NAME ": %s: MSI: %d\n", pci_name(dev),
-			op->value);
+
+	dev_dbg(&dev->dev, "MSI: %d\n", op->value);
+
 	return 0;
 }
 
@@ -213,9 +202,7 @@ int xen_pcibk_enable_msix(struct xen_pcibk_device *pdev,
 	struct msix_entry *entries;
 	u16 cmd;
 
-	if (unlikely(verbose_request))
-		printk(KERN_DEBUG DRV_NAME ": %s: enable MSI-X\n",
-		       pci_name(dev));
+	dev_dbg(&dev->dev, "enable MSI-X\n");
 
 	if (op->value > SH_INFO_MAX_VEC)
 		return -EINVAL;
@@ -248,17 +235,13 @@ int xen_pcibk_enable_msix(struct xen_pcibk_device *pdev,
 			if (entries[i].vector) {
 				op->msix_entries[i].vector =
 					xen_pirq_from_irq(entries[i].vector);
-				if (unlikely(verbose_request))
-					printk(KERN_DEBUG DRV_NAME ": %s: " \
-						"MSI-X[%d]: %d\n",
-						pci_name(dev), i,
-						op->msix_entries[i].vector);
+				dev_dbg(&dev->dev, "MSI-X[%d]: %d\n", i,
+					op->msix_entries[i].vector);
 			}
 		}
 	} else
-		pr_warn_ratelimited("%s: error enabling MSI-X for guest %u: err %d!\n",
-				    pci_name(dev), pdev->xdev->otherend_id,
-				    result);
+		dev_warn_ratelimited(&dev->dev, "error enabling MSI-X for guest %u: err %d!\n",
+				     pdev->xdev->otherend_id, result);
 	kfree(entries);
 
 	op->value = result;
@@ -273,10 +256,6 @@ static
 int xen_pcibk_disable_msix(struct xen_pcibk_device *pdev,
 			   struct pci_dev *dev, struct xen_pci_op *op)
 {
-	if (unlikely(verbose_request))
-		printk(KERN_DEBUG DRV_NAME ": %s: disable MSI-X\n",
-			pci_name(dev));
-
 	if (dev->msix_enabled) {
 		struct xen_pcibk_dev_data *dev_data;
 
@@ -291,9 +270,9 @@ int xen_pcibk_disable_msix(struct xen_pcibk_device *pdev,
 	 * an undefined IRQ value of zero.
 	 */
 	op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;
-	if (unlikely(verbose_request))
-		printk(KERN_DEBUG DRV_NAME ": %s: MSI-X: %d\n",
-		       pci_name(dev), op->value);
+
+	dev_dbg(&dev->dev, "MSI-X: %d\n", op->value);
+
 	return 0;
 }
 #endif
@@ -424,7 +403,7 @@ static irqreturn_t xen_pcibk_guest_interrupt(int irq, void *dev_id)
 		dev_data->handled++;
 		if ((dev_data->handled % 1000) == 0) {
 			if (xen_test_irq_shared(irq)) {
-				pr_info("%s IRQ line is not shared "
+				dev_info(&dev->dev, "%s IRQ line is not shared "
 					"with other domains. Turning ISR off\n",
 					 dev_data->irq_name);
 				dev_data->ack_intr = 0;
diff --git a/drivers/xen/xen-pciback/vpci.c b/drivers/xen/xen-pciback/vpci.c
index f6ba18191c0f91..5447b5ab7c7666 100644
--- a/drivers/xen/xen-pciback/vpci.c
+++ b/drivers/xen/xen-pciback/vpci.c
@@ -7,6 +7,7 @@
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#define dev_fmt pr_fmt
 
 #include <linux/list.h>
 #include <linux/slab.h>
@@ -105,9 +106,8 @@ static int __xen_pcibk_add_pci_dev(struct xen_pcibk_device *pdev,
 				       struct pci_dev_entry, list);
 
 			if (match_slot(dev, t->dev)) {
-				pr_info("vpci: %s: assign to virtual slot %d func %d\n",
-					pci_name(dev), slot,
-					PCI_FUNC(dev->devfn));
+				dev_info(&dev->dev, "vpci: assign to virtual slot %d func %d\n",
+					 slot, PCI_FUNC(dev->devfn));
 				list_add_tail(&dev_entry->list,
 					      &vpci_dev->dev_list[slot]);
 				func = PCI_FUNC(dev->devfn);
@@ -119,8 +119,8 @@ static int __xen_pcibk_add_pci_dev(struct xen_pcibk_device *pdev,
 	/* Assign to a new slot on the virtual PCI bus */
 	for (slot = 0; slot < PCI_SLOT_MAX; slot++) {
 		if (list_empty(&vpci_dev->dev_list[slot])) {
-			pr_info("vpci: %s: assign to virtual slot %d\n",
-				pci_name(dev), slot);
+			dev_info(&dev->dev, "vpci: assign to virtual slot %d\n",
+				 slot);
 			list_add_tail(&dev_entry->list,
 				      &vpci_dev->dev_list[slot]);
 			func = dev->is_virtfn ? 0 : PCI_FUNC(dev->devfn);
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index dc81e9926a76f3..38725d97d90933 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -31,6 +31,7 @@
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#define dev_fmt pr_fmt
 
 #define DPRINTK(fmt, args...)				\
 	pr_debug("xenbus_probe (%s:%d) " fmt ".\n",	\
@@ -607,7 +608,7 @@ int xenbus_dev_suspend(struct device *dev)
 	if (drv->suspend)
 		err = drv->suspend(xdev);
 	if (err)
-		pr_warn("suspend %s failed: %i\n", dev_name(dev), err);
+		dev_warn(dev, "suspend failed: %i\n", err);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(xenbus_dev_suspend);
@@ -626,8 +627,7 @@ int xenbus_dev_resume(struct device *dev)
 	drv = to_xenbus_driver(dev->driver);
 	err = talk_to_otherend(xdev);
 	if (err) {
-		pr_warn("resume (talk_to_otherend) %s failed: %i\n",
-			dev_name(dev), err);
+		dev_warn(dev, "resume (talk_to_otherend) failed: %i\n", err);
 		return err;
 	}
 
@@ -636,15 +636,14 @@ int xenbus_dev_resume(struct device *dev)
 	if (drv->resume) {
 		err = drv->resume(xdev);
 		if (err) {
-			pr_warn("resume %s failed: %i\n", dev_name(dev), err);
+			dev_warn(dev, "resume failed: %i\n", err);
 			return err;
 		}
 	}
 
 	err = watch_otherend(xdev);
 	if (err) {
-		pr_warn("resume (watch_otherend) %s failed: %d.\n",
-			dev_name(dev), err);
+		dev_warn(dev, "resume (watch_otherend) failed: %d\n", err);
 		return err;
 	}