Arnd Bergmann <[email protected]> writes:
> The scpi_clock driver can be built-in when CONFIG_COMPILE_TEST
> is set even when ARM_SCPI_PROTOCOL is a loadable module, and
> that results in a link error:
>
> drivers/built-in.o: In function `scpi_clocks_probe':
> (.text+0x14453c): undefined reference to `get_scpi_ops'
>
> Using #if IS_REACHABLE() around the get_scpi_ops() declaration
> makes it build successfully in this case for compile-testing,
> but the effect is the same as when ARM_SCPI_PROTOCOL is
> disabled, as the code will not be used.
>
> Signed-off-by: Arnd Bergmann <[email protected]>
Makes sense. Thanks, Arnd!
Acked-by: Punit Agrawal <[email protected]>
>
> diff --git a/include/linux/scpi_protocol.h b/include/linux/scpi_protocol.h
> index 80af3cd35ae4..72ce932c69b2 100644
> --- a/include/linux/scpi_protocol.h
> +++ b/include/linux/scpi_protocol.h
> @@ -71,7 +71,7 @@ struct scpi_ops {
> int (*sensor_get_value)(u16, u32 *);
> };
>
> -#if IS_ENABLED(CONFIG_ARM_SCPI_PROTOCOL)
> +#if IS_REACHABLE(CONFIG_ARM_SCPI_PROTOCOL)
> struct scpi_ops *get_scpi_ops(void);
> #else
> static inline struct scpi_ops *get_scpi_ops(void) { return NULL; }
>
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