In preparation for adding WMI support to MODULE_DEVICE_TABLE() move the
definition of struct wmi_device_id to mod_devicetable.h and inline
guid_string in the struct.
Changing guid_string to an inline char array changes the loop conditions
when looping over an array of struct wmi_device_id. Therefore update
wmi_dev_match()'s loop to check for an empty guid_string instead of a
NULL pointer.
Signed-off-by: Mattias Jacobsson <2pi@mok.nu>
[dvhart: Move UUID_STRING_LEN define to this patch]
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
if (id == NULL)
return 0;
- while (id->guid_string) {
+ while (*id->guid_string) {
uuid_le driver_guid;
if (WARN_ON(uuid_le_to_bin(id->guid_string, &driver_guid)))
kernel_ulong_t driver_data;
};
+/* WMI */
+
+#define WMI_MODULE_PREFIX "wmi:"
+
+/**
+ * struct wmi_device_id - WMI device identifier
+ * @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
+ */
+struct wmi_device_id {
+ const char guid_string[UUID_STRING_LEN+1];
+};
+
#endif /* LINUX_MOD_DEVICETABLE_H */
#include <linux/device.h>
#include <linux/acpi.h>
+#include <linux/mod_devicetable.h>
#include <uapi/linux/wmi.h>
struct wmi_device {
extern int set_required_buffer_size(struct wmi_device *wdev, u64 length);
-struct wmi_device_id {
- const char *guid_string;
-};
-
struct wmi_driver {
struct device_driver driver;
const struct wmi_device_id *id_table;
typedef struct {
__u8 b[16];
} uuid_le;
+#define UUID_STRING_LEN 36
/* Big exception to the "don't include kernel headers into userspace, which
* even potentially has different endianness and word sizes, since