linux-kernel - Re: linux-next: build failure after merge of the tty tree

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Message-ID: <20180911082534.GA4185@dell>
Date:   Tue, 11 Sep 2018 09:25:34 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Greg KH <greg@...ah.com>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Radu Pirea <radu.pirea@...rochip.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Rob Herring <robh@...nel.org>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>
Subject: Re: linux-next: build failure after merge of the tty tree

On Tue, 11 Sep 2018, Stephen Rothwell wrote:

> Hi Greg,
> 
> After merging the tty tree, today's linux-next build (arm
> multi_v7_defconfig) failed like this:
> 
> drivers/mfd/at91-usart.c:51:34: error: array type has incomplete element type 'struct of_device_id'
>  static const struct of_device_id at91_usart_mode_of_match[] = {
>                                   ^~~~~~~~~~~~~~~~~~~~~~~~
> drivers/mfd/at91-usart.c:52:4: error: field name not in record or union initializer
>   { .compatible = "atmel,at91rm9200-usart" },
>     ^
> drivers/mfd/at91-usart.c:52:4: note: (near initialization for 'at91_usart_mode_of_match')
> drivers/mfd/at91-usart.c:53:4: error: field name not in record or union initializer
>   { .compatible = "atmel,at91sam9260-usart" },
>     ^
> drivers/mfd/at91-usart.c:53:4: note: (near initialization for 'at91_usart_mode_of_match')
> drivers/mfd/at91-usart.c:51:34: warning: 'at91_usart_mode_of_match' defined but not used [-Wunused-variable]
>  static const struct of_device_id at91_usart_mode_of_match[] = {
>                                   ^~~~~~~~~~~~~~~~~~~~~~~~
> 
> Caused by commit
> 
>   7d3aa342cef7 ("mfd: at91-usart: Add MFD driver for USART")
> 
> Forgot to include <linux/mod_devicetable.h>?

Looks like a missing Device Tree header <linux/of.h>.

Will chase this today and follow up with another PR.

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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