rfkill: add type string helper

We will need access to the rfkill switch type in string format for more
than just sysfs.  Therefore, move it to a generic helper.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 15 insertions, 18 deletions

diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c
index a561e350a70a..3c7773475ea6 100644
--- a/net/rfkill/rfkill.c
+++ b/net/rfkill/rfkill.c
@@ -224,34 +224,31 @@ static ssize_t rfkill_name_show(struct device *dev,
         return sprintf(buf, "%s\n", rfkill->name);
 }
 
-static ssize_t rfkill_type_show(struct device *dev,
-                                struct device_attribute *attr,
-                                char *buf)
+static const char *rfkill_get_type_str(enum rfkill_type type)
 {
-        struct rfkill *rfkill = to_rfkill(dev);
-        const char *type;
-
-        switch (rfkill->type) {
+        switch (type) {
         case RFKILL_TYPE_WLAN:
-                type = "wlan";
-                break;
+                return "wlan";
         case RFKILL_TYPE_BLUETOOTH:
-                type = "bluetooth";
-                break;
+                return "bluetooth";
         case RFKILL_TYPE_UWB:
-                type = "ultrawideband";
-                break;
+                return "ultrawideband";
         case RFKILL_TYPE_WIMAX:
-                type = "wimax";
-                break;
+                return "wimax";
         case RFKILL_TYPE_WWAN:
-                type = "wwan";
-                break;
+                return "wwan";
         default:
                 BUG();
         }
+}
+
+static ssize_t rfkill_type_show(struct device *dev,
+                                struct device_attribute *attr,
+                                char *buf)
+{
+        struct rfkill *rfkill = to_rfkill(dev);
 
-        return sprintf(buf, "%s\n", type);
+        return sprintf(buf, "%s\n", rfkill_get_type_str(rfkill->type));
 }
 
 static ssize_t rfkill_state_show(struct device *dev,