openwrtv3/target/linux/brcm2708/patches-4.9/950-0092-hci_h5-Don-t-send-conf_req-when-ACTIVE.patch
Rafał Miłecki fce21ae4cc brcm2708: rename all patches from raspberrypi git tree to use 950 prefix
Right now all brcm2708 patches are extracted from the non-mainline
raspberrypi/linux git tree. Many of them are hacks and/or are unneeded
in LEDE. Raspberry Pi is getting better and better mainline support so
it would be nice to finally start maintaining patches in a cleaner way:
1) Backport patches accepted in upstream tree
2) Start using upstream drivers
3) Pick only these patches that are needed for more complete support

Handling above tasks requires grouping patches - ideally using the same
prefixes as generic ones. It means we should rename existing patches to
use some high prefix. This will allow e.g. use 0xx for backported code.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Stijn Tintel <stijn@linux-ipv6.be>
2017-03-24 08:06:35 +01:00

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Diff

From 0224b0469a7f5c2ee6420aac66e89e3206029633 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);