[PATCH] i386: Disable nmi watchdog on all ThinkPads

Even newer Thinkpads have bugs in SMM code that causes hangs with
NMI watchdog.

Signed-off-by: Andi Kleen <ak@suse.de>

1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index b8b596d5778..37deee6c0c1 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -326,6 +326,26 @@ char *dmi_get_system_info(int field)
 }
 EXPORT_SYMBOL(dmi_get_system_info);
 
+
+/**
+ *      dmi_name_in_vendors - Check if string is anywhere in the DMI vendor information.
+ *      @str:   Case sensitive Name
+ */
+int dmi_name_in_vendors(char *str)
+{
+        static int fields[] = { DMI_BIOS_VENDOR, DMI_BIOS_VERSION, DMI_SYS_VENDOR,
+                                DMI_PRODUCT_NAME, DMI_PRODUCT_VERSION, DMI_BOARD_VENDOR,
+                                DMI_BOARD_NAME, DMI_BOARD_VERSION, DMI_NONE };
+        int i;
+        for (i = 0; fields[i] != DMI_NONE; i++) {
+                int f = fields[i];
+                if (dmi_ident[f] && strstr(dmi_ident[f], str))
+                        return 1;
+        }
+        return 0;
+}
+EXPORT_SYMBOL(dmi_name_in_vendors);
+
 /**
  *      dmi_find_device - find onboard device by type/name
  *      @type: device type or %DMI_DEV_TYPE_ANY to match all device types