Re: Will __pa(vmalloc()) ever work?

[Timur Tabi]

Gerd Knorr wrote:

> Can you fix that?  If so, try that.  Would be the best.

No, I cannot.  The memory is passed to my driver from some other driver that I do not
control.

> I think you can't.  What is "anywhere else"?  Does that include
> userspace addresses?

No, but it might include the stack.

> Not sure how portable that is, but comparing the vaddr against
> the vmalloc address space could work.  There are macros for
> that, VMALLOC_START & VMALLOC_END IIRC.

Thanks, I'll try that.

I still haven't gotten an answer to my question about whether pgd/pud/pmd/pte_offset will 
obtain the physical address for a kmalloc'd buffer.

--
Timur Tabi
Staff Software Engineer
timur.tabi@xxxxxxxxxxx

One thing a Southern boy will never say is,
"I don't think duct tape will fix it."
     -- Ed Smylie, NASA engineer for Apollo 13

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