L2CAP frames are lost while utilizing some exotic A2DP transports usually coming up with weird custom MTU sizes so take advantage of auto-tuning it for such cases. Found by Linux Verification Center (linuxtesting.org). Fixes: https://github.com/bluez/bluez/issues/1080 --- profiles/audio/a2dp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/profiles/audio/a2dp.c b/profiles/audio/a2dp.c index c97bd6e89..05a2e2e80 100644 --- a/profiles/audio/a2dp.c +++ b/profiles/audio/a2dp.c @@ -2592,6 +2592,8 @@ static bool a2dp_server_listen(struct a2dp_server *server) BT_IO_OPT_MODE, mode, BT_IO_OPT_SEC_LEVEL, BT_IO_SEC_MEDIUM, BT_IO_OPT_CENTRAL, true, + /* Set Input MTU to 0 to auto-tune */ + BT_IO_OPT_IMTU, 0, BT_IO_OPT_INVALID); if (server->io) return true; -- 2.39.5
