commit f97268fccdd4e76462195216fcab621b8d4a6cd1
author Andrei Emeltchenko <andrei.emeltchenko@intel.com> Thu Sep 27 17:26:07 2012 +0300
committer Gustavo Padovan <gustavo.padovan@collabora.co.uk> Thu Sep 27 17:10:03 2012 -0300
tree ab9b2cebee49e3186cd80d366e6d16aeb39e2985
parent b078b564292ab87cdf4a58de3c2f86d4300a161c

Bluetooth: A2MP: Create amp_mgr global list

Create amp_mgr_list global list which will be used by different
hci devices to find amp_mgr.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

net/bluetooth/a2mp.c

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 0760d1f..3f93060 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -17,6 +17,10 @@
 #include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/a2mp.h>
 
+/* Global AMP Manager list */
+LIST_HEAD(amp_mgr_list);
+DEFINE_MUTEX(amp_mgr_list_lock);
+
 /* A2MP build & send command helper functions */
 static struct a2mp_cmd *__a2mp_build(u8 code, u8 ident, u16 len, void *data)
 {
@@ -516,6 +520,10 @@
 
 	BT_DBG("mgr %p", mgr);
 
+	mutex_lock(&amp_mgr_list_lock);
+	list_del(&mgr->list);
+	mutex_unlock(&amp_mgr_list_lock);
+
 	kfree(mgr);
 }
 
@@ -552,6 +560,10 @@
 
 	kref_init(&mgr->kref);
 
+	mutex_lock(&amp_mgr_list_lock);
+	list_add(&mgr->list, &amp_mgr_list);
+	mutex_unlock(&amp_mgr_list_lock);
+
 	return mgr;
 }
 
@@ -570,3 +582,20 @@
 
 	return mgr->a2mp_chan;
 }
+
+struct amp_mgr *amp_mgr_lookup_by_state(u8 state)
+{
+	struct amp_mgr *mgr;
+
+	mutex_lock(&amp_mgr_list_lock);
+	list_for_each_entry(mgr, &amp_mgr_list, list) {
+		if (mgr->state == state) {
+			amp_mgr_get(mgr);
+			mutex_unlock(&amp_mgr_list_lock);
+			return mgr;
+		}
+	}
+	mutex_unlock(&amp_mgr_list_lock);
+
+	return NULL;
+}