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Diffstat (limited to 'target/linux/brcm2708/patches-4.9/0093-hci_h5-Don-t-send-conf_req-when-ACTIVE.patch')
-rw-r--r--target/linux/brcm2708/patches-4.9/0093-hci_h5-Don-t-send-conf_req-when-ACTIVE.patch23
1 files changed, 23 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.9/0093-hci_h5-Don-t-send-conf_req-when-ACTIVE.patch b/target/linux/brcm2708/patches-4.9/0093-hci_h5-Don-t-send-conf_req-when-ACTIVE.patch
new file mode 100644
index 0000000000..0ebf29c7a3
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.9/0093-hci_h5-Don-t-send-conf_req-when-ACTIVE.patch
@@ -0,0 +1,23 @@
+From 63e3b21d72b4542cd0f7527bbc7dc0aef13eb16d Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 17 Dec 2015 13:37:07 +0000
+Subject: [PATCH] hci_h5: Don't send conf_req when ACTIVE
+
+Without this patch, a modem and kernel can continuously bombard each
+other with conf_req and conf_rsp messages, in a demented game of tag.
+---
+ drivers/bluetooth/hci_h5.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/bluetooth/hci_h5.c
++++ b/drivers/bluetooth/hci_h5.c
+@@ -310,7 +310,8 @@ static void h5_handle_internal_rx(struct
+ h5_link_control(hu, conf_req, 3);
+ } else if (memcmp(data, conf_req, 2) == 0) {
+ h5_link_control(hu, conf_rsp, 2);
+- h5_link_control(hu, conf_req, 3);
++ if (h5->state != H5_ACTIVE)
++ h5_link_control(hu, conf_req, 3);
+ } else if (memcmp(data, conf_rsp, 2) == 0) {
+ if (H5_HDR_LEN(hdr) > 2)
+ h5->tx_win = (data[2] & 0x07);