Tested on bcm2710 (Raspberry Pi 3B). Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
		
			
				
	
	
		
			24 lines
		
	
	
		
			903 B
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			24 lines
		
	
	
		
			903 B
		
	
	
	
		
			Diff
		
	
	
	
	
	
From 34cb3c9d88a81018a291d3ed37f081d5cc41d00e Mon Sep 17 00:00:00 2001
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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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@@ -339,7 +339,8 @@ 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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