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Message-Id: <20191220.211947.847462480497514150.davem@davemloft.net>
Date:   Fri, 20 Dec 2019 21:19:47 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     alexchan@...k.com.hk
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] llc2: Fix return statement of
 llc_stat_ev_rx_null_dsap_xid_c (and _test_c)

From: "Chan Shu Tak, Alex" <alexchan@...k.com.hk>
Date: Thu, 19 Dec 2019 14:16:18 +0800

> From: "Chan Shu Tak, Alex" <alexchan@...k.com.hk>
> 
> When a frame with NULL DSAP is received, llc_station_rcv is called.
> In turn, llc_stat_ev_rx_null_dsap_xid_c is called to check if it is a NULL
> XID frame. The return statement of llc_stat_ev_rx_null_dsap_xid_c returns 1
> when the incoming frame is not a NULL XID frame and 0 otherwise. Hence, a
> NULL XID response is returned unexpectedly, e.g. when the incoming frame is
> a NULL TEST command.
> 
> To fix the error, simply remove the conditional operator.
> 
> A similar error in llc_stat_ev_rx_null_dsap_test_c is also fixed.
> 
> Signed-off-by: Chan Shu Tak, Alex <alexchan@...k.com.hk>

Applied.

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