4 files changed, 17 insertions, 62 deletions

diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index f148a0580e04..c7b105c0e1d3 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -350,12 +350,10 @@ static ssize_t acpi_pad_idlecpus_store(struct device *dev,
 static ssize_t acpi_pad_idlecpus_show(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
-	int n = 0;
-	n = cpumask_scnprintf(buf, PAGE_SIZE-2, to_cpumask(pad_busy_cpus_bits));
-	buf[n++] = '\n';
-	buf[n] = '\0';
-	return n;
+	return cpumap_print_to_pagebuf(false, buf,
+				       to_cpumask(pad_busy_cpus_bits));
 }
+
 static DEVICE_ATTR(idlecpus, S_IRUGO|S_IWUSR,
 	acpi_pad_idlecpus_show,
 	acpi_pad_idlecpus_store);
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 1b6aa514848f..e82d0976a5d0 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -1087,7 +1087,6 @@ static int ghes_remove(struct platform_device *ghes_dev)
 static struct platform_driver ghes_platform_driver = {
 	.driver		= {
 		.name	= "GHES",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ghes_probe,
 	.remove		= ghes_remove,
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index 7556e7c4a055..9b693d54c743 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -305,60 +305,6 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	 */
 
 	/*
-	 * Lenovo has a mix of systems OSI(Linux) situations
-	 * and thus we can not wildcard the vendor.
-	 *
-	 * _OSI(Linux) helps sound
-	 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
-	 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
-	 * T400, T500
-	 * _OSI(Linux) has Linux specific hooks
-	 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
-	 * _OSI(Linux) is a NOP:
-	 * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
-	 * DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"),
-	 */
-	{
-	.callback = dmi_enable_osi_linux,
-	.ident = "Lenovo ThinkPad R61",
-	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
-		},
-	},
-	{
-	.callback = dmi_enable_osi_linux,
-	.ident = "Lenovo ThinkPad T61",
-	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
-		},
-	},
-	{
-	.callback = dmi_enable_osi_linux,
-	.ident = "Lenovo ThinkPad X61",
-	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
-		},
-	},
-	{
-	.callback = dmi_enable_osi_linux,
-	.ident = "Lenovo ThinkPad T400",
-	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T400"),
-		},
-	},
-	{
-	.callback = dmi_enable_osi_linux,
-	.ident = "Lenovo ThinkPad T500",
-	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T500"),
-		},
-	},
-	/*
 	 * Without this this EEEpc exports a non working WMI interface, with
 	 * this it exports a working "good old" eeepc_laptop interface, fixing
 	 * both brightness control, and rfkill not working.
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index cd4de7e038ea..c6bcb8c719d8 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -33,6 +33,7 @@
 #include <linux/pci.h>
 #include <linux/pci-acpi.h>
 #include <linux/pci-aspm.h>
+#include <linux/dmar.h>
 #include <linux/acpi.h>
 #include <linux/slab.h>
 #include <linux/dmi.h>
@@ -525,6 +526,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
 	struct acpi_pci_root *root;
 	acpi_handle handle = device->handle;
 	int no_aspm = 0, clear_aspm = 0;
+	bool hotadd = system_state != SYSTEM_BOOTING;
 
 	root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
 	if (!root)
@@ -571,6 +573,11 @@ static int acpi_pci_root_add(struct acpi_device *device,
 	strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
 	device->driver_data = root;
 
+	if (hotadd && dmar_device_add(handle)) {
+		result = -ENXIO;
+		goto end;
+	}
+
 	pr_info(PREFIX "%s [%s] (domain %04x %pR)\n",
 	       acpi_device_name(device), acpi_device_bid(device),
 	       root->segment, &root->secondary);
@@ -597,7 +604,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
 			root->segment, (unsigned int)root->secondary.start);
 		device->driver_data = NULL;
 		result = -ENODEV;
-		goto end;
+		goto remove_dmar;
 	}
 
 	if (clear_aspm) {
@@ -611,7 +618,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
 	if (device->wakeup.flags.run_wake)
 		device_set_run_wake(root->bus->bridge, true);
 
-	if (system_state != SYSTEM_BOOTING) {
+	if (hotadd) {
 		pcibios_resource_survey_bus(root->bus);
 		pci_assign_unassigned_root_bus_resources(root->bus);
 	}
@@ -621,6 +628,9 @@ static int acpi_pci_root_add(struct acpi_device *device,
 	pci_unlock_rescan_remove();
 	return 1;
 
+remove_dmar:
+	if (hotadd)
+		dmar_device_remove(handle);
 end:
 	kfree(root);
 	return result;
@@ -639,6 +649,8 @@ static void acpi_pci_root_remove(struct acpi_device *device)
 
 	pci_remove_root_bus(root->bus);
 
+	dmar_device_remove(device->handle);
+
 	pci_unlock_rescan_remove();
 
 	kfree(root);