Hi Arnd,
2016-01-14 7:33 GMT+09:00 Arnd Bergmann <arnd@xxxxxxxx>:
> The recently added uniphier 8250 port driver supports early console
> probing, and it supports being built as a module, but the combination
> of the two fails to link:
>
> ERROR: "early_serial8250_setup" [drivers/tty/serial/8250/8250_uniphier.ko] undefined!
>
> Given that earlycon support in a loadable module makes no sense,
> making that code conditional on 'MODULE' is a correct solution.
>
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> Fixes: b8d20e06eaad ("serial: 8250_uniphier: add earlycon support")
>
> diff --git a/drivers/tty/serial/8250/8250_uniphier.c b/drivers/tty/serial/8250/8250_uniphier.c
> index bab6b3ae2540..1b7bd26555b7 100644
> --- a/drivers/tty/serial/8250/8250_uniphier.c
> +++ b/drivers/tty/serial/8250/8250_uniphier.c
> @@ -35,7 +35,7 @@ struct uniphier8250_priv {
> spinlock_t atomic_write_lock;
> };
>
> -#ifdef CONFIG_SERIAL_8250_CONSOLE
> +#if defined(CONFIG_SERIAL_8250_CONSOLE) && !defined(MODULE)
> static int __init uniphier_early_console_setup(struct earlycon_device *device,
> const char *options)
> {
>
>
If my patch (https://patchwork.kernel.org/patch/8029331/) is accepted,
this build error will be fixed as well. But I doubt it is accepted soon...
So, I am OK with this workaround to fix "make allmodconfig".
Acked-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
--
Best Regards
Masahiro Yamada
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