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Date: Thu, 14 Mar 2024 08:39:19 -0700
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Subject: Re: [PATCH v9 07/27] net: wan: Add support for QMC HDLC
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To: Christophe Leroy <christophe.leroy@csgroup.eu>,
 Herve Codina <herve.codina@bootlin.com>
Cc: "David S. Miller" <davem@davemloft.net>,
 Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>,
 Paolo Abeni <pabeni@redhat.com>, Andrew Lunn <andrew@lunn.ch>,
 Rob Herring <robh+dt@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Conor Dooley <conor+dt@kernel.org>, Lee Jones <lee@kernel.org>,
 Linus Walleij <linus.walleij@linaro.org>, Qiang Zhao <qiang.zhao@nxp.com>,
 Li Yang <leoyang.li@nxp.com>, Liam Girdwood <lgirdwood@gmail.com>,
 Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
 Takashi Iwai <tiwai@suse.com>, Shengjiu Wang <shengjiu.wang@gmail.com>,
 Xiubo Li <Xiubo.Lee@gmail.com>, Fabio Estevam <festevam@gmail.com>,
 Nicolin Chen <nicoleotsuka@gmail.com>, Randy Dunlap <rdunlap@infradead.org>,
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 "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
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 "linux-arm-kernel@lists.infradead.org"
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 "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
 Simon Horman <horms@kernel.org>,
 Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
 Thomas Petazzoni <thomas.petazzoni@bootlin.com>
References: <20231115144007.478111-1-herve.codina@bootlin.com>
 <20231115144007.478111-8-herve.codina@bootlin.com>
 <bd7b7714-1e73-444a-a175-675039d4f6e4@roeck-us.net>
 <42504939-e423-4128-bb86-a40e7b7ae845@csgroup.eu>
From: Guenter Roeck <linux@roeck-us.net>
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In-Reply-To: <42504939-e423-4128-bb86-a40e7b7ae845@csgroup.eu>
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On 3/14/24 08:31, Christophe Leroy wrote:
> 
> 
> Le 14/03/2024 à 16:21, Guenter Roeck a écrit :
>> On Wed, Nov 15, 2023 at 03:39:43PM +0100, Herve Codina wrote:
>>> The QMC HDLC driver provides support for HDLC using the QMC (QUICC
>>> Multichannel Controller) to transfer the HDLC data.
>>>
>>> Signed-off-by: Herve Codina <herve.codina@bootlin.com>
>>> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
>>> Acked-by: Jakub Kicinski <kuba@kernel.org>
>>> ---
>> [ ... ]
>>
>>> +
>>> +static const struct of_device_id qmc_hdlc_id_table[] = {
>>> +	{ .compatible = "fsl,qmc-hdlc" },
>>> +	{} /* sentinel */
>>> +};
>>> +MODULE_DEVICE_TABLE(of, qmc_hdlc_driver);
>>
>> I am a bit puzzled. How does this even compile ?
> 
> Because
> 
> #else  /* !MODULE */
> #define MODULE_DEVICE_TABLE(type, name)
> #endif
> 

Ah, makes sense. We live and learn.

> 
> We should probably try to catch those errors when CONFIG_MODULE is not set.
> 
> By the way, a fix is available at
> https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20240314123346.461350-1-herve.codina@bootlin.com/
> 

Great, I'll add that to my testing branch for the time being.

Thanks!
Guenter