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hci_h5: Don't send conf_req when ACTIVE
author
Phil Elwell
<phil@raspberrypi.org>
Thu, 17 Dec 2015 13:37:07 +0000
(13:37 +0000)
committer
Dom Cobley
<popcornmix@gmail.com>
Mon, 19 Feb 2024 11:32:46 +0000
(11:32 +0000)
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
patch
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diff --git
a/drivers/bluetooth/hci_h5.c
b/drivers/bluetooth/hci_h5.c
index
71e748a
..
c58c168
100644
(file)
--- a/
drivers/bluetooth/hci_h5.c
+++ b/
drivers/bluetooth/hci_h5.c
@@
-357,7
+357,8
@@
static void h5_handle_internal_rx(struct hci_uart *hu)
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);