Re: [PATCH v2 07/11] openrisc: mm: Convert to GENERIC_IOREMAP

Christoph Hellwig
2022-08-21T07:04:00Z

> + if (unlikely(!mem_init_done)) {
> if ((fixmaps_used + (size >> PAGE_SHIFT)) > FIX_N_IOREMAPS)
> + return IOMEM_ERR_PTR(ret);
> v = fix_to_virt(FIX_IOREMAP_BEGIN + fixmaps_used);
> fixmaps_used += (size >> PAGE_SHIFT);
>
> + if (ioremap_page_range(v, v + size, p, __pgprot(*prot_val))) {
> fixmaps_used -= (size >> PAGE_SHIFT);
> + return IOMEM_ERR_PTR(ret);
> + }
> +
> + return (void __iomem *)(offset + (char *)v);
> }

This code needs to go away, and all very early boot uses of ioremap
need to switch to use early_ioremap insted.