Merge tag 'for-linus-4.17-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

 - some fixes of kmalloc() flags

 - one fix of the xenbus driver

 - an update of the pv sound driver interface needed for a driver which
   will go through the sound tree

* tag 'for-linus-4.17-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: xenbus_dev_frontend: Really return response string
  xen/sndif: Sync up with the canonical definition in Xen
  xen: xen-pciback: Replace GFP_ATOMIC with GFP_KERNEL in pcistub_reg_add
  xen: xen-pciback: Replace GFP_ATOMIC with GFP_KERNEL in xen_pcibk_config_quirks_init
  xen: xen-pciback: Replace GFP_ATOMIC with GFP_KERNEL in pcistub_device_alloc
  xen: xen-pciback: Replace GFP_ATOMIC with GFP_KERNEL in pcistub_init_device
  xen: xen-pciback: Replace GFP_ATOMIC with GFP_KERNEL in pcistub_probe

drivers/xen/xen-pciback/conf_space_quirks.c

@@ -95,7 +95,7 @@ int xen_pcibk_config_quirks_init(struct pci_dev *dev)
 	struct xen_pcibk_config_quirk *quirk;
 	int ret = 0;
 
-	quirk = kzalloc(sizeof(*quirk), GFP_ATOMIC);
+	quirk = kzalloc(sizeof(*quirk), GFP_KERNEL);
 	if (!quirk) {
 		ret = -ENOMEM;
 		goto out;

drivers/xen/xen-pciback/pci_stub.c

@@ -71,7 +71,7 @@ static struct pcistub_device *pcistub_device_alloc(struct pci_dev *dev)
 
 	dev_dbg(&dev->dev, "pcistub_device_alloc\n");
 
-	psdev = kzalloc(sizeof(*psdev), GFP_ATOMIC);
+	psdev = kzalloc(sizeof(*psdev), GFP_KERNEL);
 	if (!psdev)
 		return NULL;
 
@@ -364,7 +364,7 @@ static int pcistub_init_device(struct pci_dev *dev)
 	 * here and then to call kfree(pci_get_drvdata(psdev->dev)).
 	 */
 	dev_data = kzalloc(sizeof(*dev_data) +  strlen(DRV_NAME "[]")
-				+ strlen(pci_name(dev)) + 1, GFP_ATOMIC);
+				+ strlen(pci_name(dev)) + 1, GFP_KERNEL);
 	if (!dev_data) {
 		err = -ENOMEM;
 		goto out;
@@ -577,7 +577,7 @@ static int pcistub_probe(struct pci_dev *dev, const struct pci_device_id *id)
 		}
 
 		if (!match) {
-			pci_dev_id = kmalloc(sizeof(*pci_dev_id), GFP_ATOMIC);
+			pci_dev_id = kmalloc(sizeof(*pci_dev_id), GFP_KERNEL);
 			if (!pci_dev_id) {
 				err = -ENOMEM;
 				goto out;
@@ -1149,7 +1149,7 @@ static int pcistub_reg_add(int domain, int bus, int slot, int func,
 	}
 	dev = psdev->dev;
 
-	field = kzalloc(sizeof(*field), GFP_ATOMIC);
+	field = kzalloc(sizeof(*field), GFP_KERNEL);
 	if (!field) {
 		err = -ENOMEM;
 		goto out;

drivers/xen/xenbus/xenbus_dev_frontend.c

@@ -403,7 +403,7 @@ static int xenbus_command_reply(struct xenbus_file_priv *u,
 {
 	struct {
 		struct xsd_sockmsg hdr;
-		const char body[16];
+		char body[16];
 	} msg;
 	int rc;
 
@@ -412,6 +412,7 @@ static int xenbus_command_reply(struct xenbus_file_priv *u,
 	msg.hdr.len = strlen(reply) + 1;
 	if (msg.hdr.len > sizeof(msg.body))
 		return -E2BIG;
+	memcpy(&msg.body, reply, msg.hdr.len);
 
 	mutex_lock(&u->reply_mutex);
 	rc = queue_reply(&u->read_buffers, &msg, sizeof(msg.hdr) + msg.hdr.len);