Re: [PATCH] gpio: xgs-iproc: Fix section mismatch on device tree match table

[Chris Packham <Chris.Packham@xxxxxxxxxxxxxxxxxxx>]

Hi Mark,

On Tue, 2019-11-05 at 12:49 +0000, Mark Brown wrote:
> The table of devicetree identifiers is annotated as __initconst
> indicating that it can be discarded after kernel boot but it is
> referenced from the driver struct which has no init annotation leading
> to a linker warning:
> 
> WARNING: vmlinux.o(.data+0x82d58): Section mismatch in reference from the variable bcm_iproc_gpio_driver to the variable .init.rodata:bcm_iproc_gpio_of_match
> The variable bcm_iproc_gpio_driver references
> the variable __initconst bcm_iproc_gpio_of_match
> 
> Since drivers can be probed after init the lack of annotation on the
> driver struct is correct so remove the annotation from the match table.
> 
> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>

Thanks for picking this up

Reviewed-by: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>

Is it worth including 'Fixes: 6a41b6c5fc20 ("gpio: Add xgs-iproc
driver")'?

> ---
>  drivers/gpio/gpio-xgs-iproc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpio/gpio-xgs-iproc.c b/drivers/gpio/gpio-xgs-iproc.c
> index a3fdd95cc9e6..bb183f584d92 100644
> --- a/drivers/gpio/gpio-xgs-iproc.c
> +++ b/drivers/gpio/gpio-xgs-iproc.c
> @@ -299,7 +299,7 @@ static int __exit iproc_gpio_remove(struct platform_device *pdev)
>  	return 0;
>  }
>  
> -static const struct of_device_id bcm_iproc_gpio_of_match[] __initconst = {
> +static const struct of_device_id bcm_iproc_gpio_of_match[] = {
>  	{ .compatible = "brcm,iproc-gpio-cca" },
>  	{}
>  };