Bluetooth: Save remote L2CAP fixed channel mask

Fixed channel mask needs to be stored to decide whether to
use A2MP for example. So far save only one relevant byte which
keeps all information we need.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

2 files changed, 8 insertions, 2 deletions

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index d6d8ec8eb8cf..3732a4849f2e 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -522,6 +522,7 @@ struct l2cap_conn {
         unsigned int    mtu;
 
         __u32           feat_mask;
+        __u8            fixed_chan_mask;
 
         __u8            info_state;
         __u8            info_ident;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index df3be692f2cf..bc8d558b01f6 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -3209,7 +3209,8 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm
                 return 0;
         }
 
-        if (type == L2CAP_IT_FEAT_MASK) {
+        switch (type) {
+        case L2CAP_IT_FEAT_MASK:
                 conn->feat_mask = get_unaligned_le32(rsp->data);
 
                 if (conn->feat_mask & L2CAP_FEAT_FIXED_CHAN) {
@@ -3226,11 +3227,15 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm
 
                         l2cap_conn_start(conn);
                 }
-        } else if (type == L2CAP_IT_FIXED_CHAN) {
+                break;
+
+        case L2CAP_IT_FIXED_CHAN:
+                conn->fixed_chan_mask = rsp->data[0];
                 conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
                 conn->info_ident = 0;
 
                 l2cap_conn_start(conn);
+                break;
         }
 
         return 0;