linux-kernel - Re: [PATCH net] net: dsa: sja1105: improve NET_DSA_SJA1105

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Date:   Mon, 28 Oct 2019 16:34:17 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     arnd@...db.de
Cc:     olteanv@...il.com, andrew@...n.ch, vivien.didelot@...il.com,
        f.fainelli@...il.com, maowenan@...wei.com,
        jakub.kicinski@...ronome.com, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: [PATCH net] net: dsa: sja1105: improve NET_DSA_SJA1105_TAS
 dependency

From: Arnd Bergmann <arnd@...db.de>
Date: Fri, 25 Oct 2019 09:26:35 +0200

> An earlier bugfix introduced a dependency on CONFIG_NET_SCH_TAPRIO,
> but this missed the case of NET_SCH_TAPRIO=m and NET_DSA_SJA1105=y,
> which still causes a link error:
> 
> drivers/net/dsa/sja1105/sja1105_tas.o: In function `sja1105_setup_tc_taprio':
> sja1105_tas.c:(.text+0x5c): undefined reference to `taprio_offload_free'
> sja1105_tas.c:(.text+0x3b4): undefined reference to `taprio_offload_get'
> drivers/net/dsa/sja1105/sja1105_tas.o: In function `sja1105_tas_teardown':
> sja1105_tas.c:(.text+0x6ec): undefined reference to `taprio_offload_free'
> 
> Change the dependency to only allow selecting the TAS code when it
> can link against the taprio code.
> 
> Fixes: a8d570de0cc6 ("net: dsa: sja1105: Add dependency for NET_DSA_SJA1105_TAS")
> Fixes: 317ab5b86c8e ("net: dsa: sja1105: Configure the Time-Aware Scheduler via tc-taprio offload")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Applied, thanks Arnd.