Major warnings cleanup

Mostly fixing unused parameter warnings.
A few other warnings also fixed like possible use of
unitialized variables (no real issue found, just compiler couldn't
follow the path), signed vs unsigned warning.

Also fixed some typos, indent issues, removal of dead code, etc.

Change-Id: I95eb887aefc4d559d7921f71a0af5f3bfb01ac01
Signed-off-by: Mike J. Chen <mjchen@google.com>
diff --git a/bta/dm/bta_dm_act.c b/bta/dm/bta_dm_act.c
index acaca98..b1e7943 100755
--- a/bta/dm/bta_dm_act.c
+++ b/bta/dm/bta_dm_act.c
@@ -250,6 +250,7 @@
 #if ( BTM_EIR_SERVER_INCLUDED == TRUE )&&(BTA_EIR_CANNED_UUID_LIST != TRUE)
 static void bta_dm_app_ready_timer_cback (TIMER_LIST_ENT *p_tle)
 {
+    UNUSED(p_tle);
     bta_dm_set_eir (NULL);
 }
 #else
@@ -457,6 +458,8 @@
 *******************************************************************************/
 void bta_dm_disable (tBTA_DM_MSG *p_data)
 {
+    UNUSED(p_data);
+
     /* Set l2cap idle timeout to 0 (so BTE immediately disconnects ACL link after last channel is closed) */
     L2CA_SetIdleTimeoutByBdAddr((UINT8 *)BT_BD_ANY, 0);
 
@@ -508,7 +511,7 @@
 *******************************************************************************/
 static void bta_dm_disable_timer_cback (TIMER_LIST_ENT *p_tle)
 {
-
+    UNUSED(p_tle);
     UINT8 i;
 
     APPL_TRACE_EVENT0(" bta_dm_disable_timer_cback  ");
@@ -1137,6 +1140,7 @@
 #if (BTM_OOB_INCLUDED == TRUE)
 void bta_dm_loc_oob(tBTA_DM_MSG *p_data)
 {
+    UNUSED(p_data);
     BTM_ReadLocalOobData();
 }
 
@@ -1254,7 +1258,7 @@
 *******************************************************************************/
 void bta_dm_search_cancel (tBTA_DM_MSG *p_data)
 {
-
+    UNUSED(p_data);
     tBTA_DM_MSG * p_msg;
 
     if(BTM_IsInquiryActive())
@@ -2011,6 +2015,7 @@
 *******************************************************************************/
 static void bta_dm_search_timer_cback (TIMER_LIST_ENT *p_tle)
 {
+    UNUSED(p_tle);
 
     APPL_TRACE_EVENT0(" bta_dm_search_timer_cback  ");
     bta_dm_search_cb.wait_disc = FALSE;
@@ -2032,6 +2037,7 @@
 *******************************************************************************/
 void bta_dm_free_sdp_db (tBTA_DM_MSG *p_data)
 {
+    UNUSED(p_data);
     if(bta_dm_search_cb.p_sdp_db)
     {
         GKI_freebuf(bta_dm_search_cb.p_sdp_db);
@@ -2093,7 +2099,7 @@
 *******************************************************************************/
 void bta_dm_search_clear_queue (tBTA_DM_MSG *p_data)
 {
-
+    UNUSED(p_data);
     if(bta_dm_search_cb.p_search_queue)
     {
         GKI_freebuf(bta_dm_search_cb.p_search_queue);
@@ -2114,7 +2120,7 @@
 *******************************************************************************/
 void bta_dm_search_cancel_cmpl (tBTA_DM_MSG *p_data)
 {
-
+    UNUSED(p_data);
     if(bta_dm_search_cb.p_search_queue)
     {
         bta_sys_sendmsg(bta_dm_search_cb.p_search_queue);
@@ -2135,7 +2141,7 @@
 *******************************************************************************/
 void bta_dm_search_cancel_transac_cmpl(tBTA_DM_MSG *p_data)
 {
-
+    UNUSED(p_data);
     if(bta_dm_search_cb.p_sdp_db)
     {
         GKI_freebuf(bta_dm_search_cb.p_sdp_db);
@@ -2157,6 +2163,7 @@
 *******************************************************************************/
 void bta_dm_search_cancel_notify (tBTA_DM_MSG *p_data)
 {
+    UNUSED(p_data);
     if (bta_dm_search_cb.p_search_cback)
     {
         bta_dm_search_cb.p_search_cback(BTA_DM_SEARCH_CANCEL_CMPL_EVT, NULL);
@@ -2617,6 +2624,7 @@
 {
     tBTM_REMOTE_DEV_NAME    rem_name;
     tBTM_STATUS             btm_status;
+    UNUSED(dc);
 
     APPL_TRACE_DEBUG1("bta_dm_service_search_remname_cback name=<%s>", bd_name);
 
@@ -2712,6 +2720,8 @@
 {
     tBTA_DM_SEC sec_event;
     UINT8       index = 1;
+    UNUSED(service_name);
+    UNUSED(is_originator);
 
     bdcpy(sec_event.authorize.bd_addr, bd_addr);
     memcpy(sec_event.authorize.dev_class, dev_class, DEV_CLASS_LEN);
@@ -2876,6 +2886,8 @@
     API. If BTM doesn't have the link key in it's
     data base, that's because application doesn't
     it */
+    UNUSED(bd_addr);
+    UNUSED(key);
 
     return BTM_NOT_AUTHORIZED;
 }
@@ -2899,6 +2911,7 @@
     tBTA_DM_SEC sec_event;
     tBTA_DM_AUTH_CMPL *p_auth_cmpl;
     UINT8             event;
+    UNUSED(dev_class);
 
     memset (&sec_event, 0, sizeof(tBTA_DM_SEC));
 
@@ -2945,8 +2958,8 @@
 *******************************************************************************/
 static UINT8 bta_dm_authentication_complete_cback(BD_ADDR bd_addr, DEV_CLASS dev_class,BD_NAME bd_name, int result)
 {
-
     tBTA_DM_SEC sec_event;
+    UNUSED(dev_class);
 
     if(result != BTM_SUCCESS)
     {
@@ -3111,6 +3124,7 @@
 static void bta_dm_local_name_cback(UINT8 *p_name)
 {
     tBTA_DM_SEC sec_event;
+    UNUSED(p_name);
 
     BTM_GetLocalDeviceAddr(sec_event.enable.bd_addr);
     sec_event.enable.status = BTA_SUCCESS;
@@ -3156,7 +3170,7 @@
 *******************************************************************************/
 static void bta_dm_signal_strength_timer_cback (TIMER_LIST_ENT *p_tle)
 {
-
+    UNUSED(p_tle);
     UINT8 i;
 
     if(bta_dm_cb.signal_strength_mask & BTA_SIG_STRENGTH_RSSI_MASK)
@@ -3282,6 +3296,7 @@
 *******************************************************************************/
 static void bta_dm_rs_cback (tBTM_ROLE_SWITCH_CMPL *p1)
 {
+    UNUSED(p1);
     APPL_TRACE_WARNING1("bta_dm_rs_cback:%d", bta_dm_cb.rs_event);
     if(bta_dm_cb.rs_event == BTA_DM_API_SEARCH_EVT)
     {
@@ -3550,6 +3565,7 @@
 *******************************************************************************/
 static void bta_dm_disable_conn_down_timer_cback (TIMER_LIST_ENT *p_tle)
 {
+    UNUSED(p_tle);
     tBTA_SYS_HW_MSG *sys_enable_event;
 
     /* disable the power managment module */
@@ -3747,6 +3763,7 @@
 *******************************************************************************/
 static void bta_dm_delay_role_switch_cback(TIMER_LIST_ENT *p_tle)
 {
+    UNUSED(p_tle);
     APPL_TRACE_EVENT0("bta_dm_delay_role_switch_cback: initiating Delayed RS");
     bta_dm_adjust_roles (FALSE);
 }
@@ -4439,6 +4456,7 @@
 *******************************************************************************/
 void bta_dm_enable_test_mode(tBTA_DM_MSG *p_data)
 {
+    UNUSED(p_data);
     BTM_EnableTestMode();
 }
 
@@ -4454,6 +4472,7 @@
 *******************************************************************************/
 void bta_dm_disable_test_mode(tBTA_DM_MSG *p_data)
 {
+    UNUSED(p_data);
     BTM_DeviceReset(NULL);
 }
 
@@ -4490,6 +4509,7 @@
 {
     tBTA_STATUS   bta_status = BTA_SUCCESS;
     tBTA_DM_ENCRYPT_CBACK *p_callback = bta_dm_cb.p_encrypt_cback;
+    UNUSED(p_ref_data);
 
     bta_dm_cb.p_encrypt_cback = NULL;
     switch (result)
@@ -5256,6 +5276,8 @@
 *******************************************************************************/
 void bta_dm_close_gatt_conn(tBTA_DM_MSG *p_data)
 {
+    UNUSED(p_data);
+
     if (bta_dm_search_cb.conn_id != BTA_GATT_INVALID_CONN_ID)
         BTA_GATTC_Close(bta_dm_search_cb.conn_id);