platform/x86: wmi: Add a new interface to read block data
wmi_query_block is unnecessarily indirect. Add a straightforward
method for wmi bus drivers to use to read block data.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Mario Limonciello <mario_limonciello@dell.com>
Cc: Pali Rohár <pali.rohar@gmail.com>
Cc: linux-kernel@vger.kernel.org
Cc: platform-driver-x86@vger.kernel.org
Cc: linux-acpi@vger.kernel.org
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
diff --git a/include/linux/wmi.h b/include/linux/wmi.h
index c6eedfd..0ab2540 100644
--- a/include/linux/wmi.h
+++ b/include/linux/wmi.h
@@ -29,6 +29,10 @@
bool readable, writeable;
};
+/* Caller must kfree the result. */
+extern union acpi_object *wmidev_block_query(struct wmi_device *wdev,
+ u8 instance);
+
struct wmi_device_id {
const char *guid_string;
};