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
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