On Wed, Jan 03, 2018 at 02:09:20PM +0800, Jeffy Chen wrote:
> The for_each_matching_node_and_match() would return every matching
> nodes including unavailable ones.
>
> It's pointless to init unavailable IOMMUs, so add a sanity check to
> avoid that.
>
> Signed-off-by: Jeffy Chen <[email protected]>
> ---
>
> drivers/iommu/of_iommu.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
> index 50947ebb6d17..6f7456caa30d 100644
> --- a/drivers/iommu/of_iommu.c
> +++ b/drivers/iommu/of_iommu.c
> @@ -240,6 +240,9 @@ static int __init of_iommu_init(void)
> for_each_matching_node_and_match(np, matches, &match) {
> const of_iommu_init_fn init_fn = match->data;
>
> + if (!of_device_is_available(np))
> + continue;
> +
Makes sense to me, but I'd like to have an OK from Robin or Will (added
to Cc) before applying this.
Joerg
