2017-03-04 18:37:50 +00:00
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From 0224b0469a7f5c2ee6420aac66e89e3206029633 Mon Sep 17 00:00:00 2001
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2017-02-07 20:07:54 +00:00
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Thu, 17 Dec 2015 13:37:07 +0000
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Subject: [PATCH] hci_h5: Don't send conf_req when ACTIVE
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Without this patch, a modem and kernel can continuously bombard each
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other with conf_req and conf_rsp messages, in a demented game of tag.
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---
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drivers/bluetooth/hci_h5.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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--- a/drivers/bluetooth/hci_h5.c
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+++ b/drivers/bluetooth/hci_h5.c
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@@ -310,7 +310,8 @@ static void h5_handle_internal_rx(struct
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h5_link_control(hu, conf_req, 3);
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} else if (memcmp(data, conf_req, 2) == 0) {
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h5_link_control(hu, conf_rsp, 2);
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- h5_link_control(hu, conf_req, 3);
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+ if (h5->state != H5_ACTIVE)
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+ h5_link_control(hu, conf_req, 3);
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} else if (memcmp(data, conf_rsp, 2) == 0) {
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if (H5_HDR_LEN(hdr) > 2)
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h5->tx_win = (data[2] & 0x07);
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