> +static inline size_t dma_max_mapping_size(struct device *dev)
> +{
> + const struct dma_map_ops *ops = get_dma_ops(dev);
> + size_t size = SIZE_MAX;
> +
> + if (dma_is_direct(ops))
> + size = dma_direct_max_mapping_size(dev);
> + else if (ops && ops->max_mapping_size)
> + size = ops->max_mapping_size(dev);
> +
> + return size;
> +}
Sorry for not noticing last time, but since 5.0 we keep all non-fast
path DMA mapping interfaces out of line, so this should move to
kernel/dma/mapping.c.
> +EXPORT_SYMBOL(dma_direct_max_mapping_size);
And then there is no need to export this one.
The dma_max_mapping_size export should be EXPORT_SYMBOL_GPL like all
new dma-mapping interfaces.
