Subject: [PATCH] [ACPI] Add a couple of basic library functions

- To help ween drivers (and the core) from using the
  struct acpi_device, define acpi_dev_hid() and
  acpi_dev_bid() to access the relevant fields.

Signed-off-by: Patrick Mochel <mochel@linux.intel.com>

---

 drivers/acpi/drivers/core/Makefile |    1 +
 drivers/acpi/drivers/core/lib.c    |   16 ++++++++++++++++
 include/acpi/device.h              |    6 ++++++
 3 files changed, 23 insertions(+), 0 deletions(-)
 create mode 100644 drivers/acpi/drivers/core/lib.c

applies-to: d1efa56976782437cfbb253364592d4b24fb6f85
84b9495955d304a82456cfe4a82cc647b75ad324
diff --git a/drivers/acpi/drivers/core/Makefile b/drivers/acpi/drivers/core/Makefile
index ec8bc12..65a03b8 100644
--- a/drivers/acpi/drivers/core/Makefile
+++ b/drivers/acpi/drivers/core/Makefile
@@ -1,3 +1,4 @@
 
 obj-y	:=	bus.o
+obj-y	:=	lib.o
 
diff --git a/drivers/acpi/drivers/core/lib.c b/drivers/acpi/drivers/core/lib.c
new file mode 100644
index 0000000..39a2d90
--- /dev/null
+++ b/drivers/acpi/drivers/core/lib.c
@@ -0,0 +1,16 @@
+
+#include <acpi/device.h>
+
+char * acpi_dev_bid(struct acpi_dev * ad)
+{
+	return acpi_device_bid(ad->acpi_device);
+}
+
+EXPORT_SYMBOL_GPL(acpi_dev_bid);
+
+char * acpi_dev_hid(struct acpi_dev * ad)
+{
+	return acpi_device_hid(ad->acpi_device);
+}
+
+EXPORT_SYMBOL_GPL(acpi_dev_hid);
diff --git a/include/acpi/device.h b/include/acpi/device.h
index e5c2751..4780276 100644
--- a/include/acpi/device.h
+++ b/include/acpi/device.h
@@ -20,4 +20,10 @@ struct acpi_device_driver {
 };
 
 
+/*
+ * Library functions for new drivers
+ */
+extern char * acpi_dev_bid(struct acpi_dev *);
+extern char * acpi_dev_hid(struct acpi_dev *);
+
 #endif /* _INCLUDE_ACPI_DEVICE_ */
---
0.99.9.GIT