Re: [PATCH net] net/mlx5: avoid build warning for uniprocessor

From: David Miller
Date: Tue May 30 2017 - 14:09:56 EST


From: Arnd Bergmann <arnd@xxxxxxxx>
Date: Mon, 29 May 2017 15:00:17 +0200

> Building the driver with CONFIG_SMP disabled results in a harmless
> warning:
>
> ethernet/mellanox/mlx5/core/main.c: In function 'mlx5_irq_set_affinity_hint':
> ethernet/mellanox/mlx5/core/main.c:615:6: error: unused variable 'irq' [-Werror=unused-variable]
>
> It's better to express the conditional compilation using IS_ENABLED()
> here, as that lets the compiler see what the intented use for the variable
> is, and that it can be silently discarded.
>
> Fixes: b665d98edc9a ("net/mlx5: Tolerate irq_set_affinity_hint() failures")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Applied, thank you.