bluetooth: hidp_process_hid_control remove unnecessary parameter dealing

According to the bluetooth HID spec v1.0 chapter 7.4.2

"This code requests a major state change in a BT-HID device.  A HID_CONTROL
request does not generate a HANDSHAKE response."

"A HID_CONTROL packet with a parameter of VIRTUAL_CABLE_UNPLUG is the only
HID_CONTROL packet a device can send to a host.  A host will ignore all other
packets."

So in the hidp_precess_hid_control function, we just need to deal with the
UNLUG packet.

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 782a22602b86cb9bca1838ee7758adbfcd0984f6..b5c40d60cdf355bc4d3ef00d331b12cd2390754b 100644 (file)
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -369,30 +369,13 @@ static inline void hidp_process_hid_control(struct hidp_session *session, unsign
 {
        BT_DBG("session %p param 0x%02x", session, param);
 
-       switch (param) {
-       case HIDP_CTRL_NOP:
-               break;
-
-       case HIDP_CTRL_VIRTUAL_CABLE_UNPLUG:
+       if (param == HIDP_CTRL_VIRTUAL_CABLE_UNPLUG) {
                /* Flush the transmit queues */
                skb_queue_purge(&session->ctrl_transmit);
                skb_queue_purge(&session->intr_transmit);
 
                /* Kill session thread */
                atomic_inc(&session->terminate);
-               break;
-
-       case HIDP_CTRL_HARD_RESET:
-       case HIDP_CTRL_SOFT_RESET:
-       case HIDP_CTRL_SUSPEND:
-       case HIDP_CTRL_EXIT_SUSPEND:
-               /* FIXME: We have to parse these and return no error */
-               break;
-
-       default:
-               __hidp_send_ctrl_message(session,
-                       HIDP_TRANS_HANDSHAKE | HIDP_HSHK_ERR_INVALID_PARAMETER, NULL, 0);
-               break;
        }
 }