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SubjectRe: [PATCH] irqchip/stm32: fix non-SMP build warning
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On 06/05/2018 01:43 PM, Arnd Bergmann wrote:
> Without CONFIG_SMP, we get a harmless compile-time warning:
>
> drivers/irqchip/irq-stm32-exti.c:495:12: error: 'stm32_exti_h_set_affinity' defined but not used [-Werror=unused-function]
>
> The #ifdef is inconsistent here, and it's better to use an IS_ENABLED() check
> that lets the compiler silently drop that function.
>
> Fixes: 927abfc4461e ("irqchip/stm32: Add stm32mp1 support with hierarchy domain")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/irqchip/irq-stm32-exti.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c
> index 5089c1e2838d..3a7e8905a97e 100644
> --- a/drivers/irqchip/irq-stm32-exti.c
> +++ b/drivers/irqchip/irq-stm32-exti.c
> @@ -552,9 +552,7 @@ static struct irq_chip stm32_exti_h_chip = {
> .irq_set_type = stm32_exti_h_set_type,
> .irq_set_wake = stm32_exti_h_set_wake,
> .flags = IRQCHIP_MASK_ON_SUSPEND,
> -#ifdef CONFIG_SMP
> - .irq_set_affinity = stm32_exti_h_set_affinity,
> -#endif
> + .irq_set_affinity = IS_ENABLED(CONFIG_SMP) ? stm32_exti_h_set_affinity : NULL,

thanks Arnd, sorry to forgotten config flag test

Reviewed-by: Ludovic Barre <ludovic.barre@st.com>

> };
>
> static int stm32_exti_h_domain_alloc(struct irq_domain *dm,
>

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