On Tue, 17 Jul 2018 14:06:09 +0200
Frans de Boer <fr...@fransdb.nl> wrote:
> Hazel, sorry but where should I remove phys_to_virt()? If I delete the
> complete if statement in the iounmap function, and replace that with the
> above code, i get compile errors.
Frans,
You put (do not remove anything) the statement:
if (is_ISA_range(phys_addr, last_addr))
return (__force void __iomem *)phys_to_virt(phys_addr);
around line 106 of arch/x86/mm/ioremap.c
just before the lines:
/*
* Don't allow anybody to remap normal RAM that we're using..
*/
pfn = phys_addr >> PAGE_SHIFT;
You can how the older code was altered here:
https://patchwork.kernel.org/patch/9847859/
Mike
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