# Re: \[PATCH v5 12/16\] PCI: Add pci\_iomap\_host\_shared(), pci\_iomap\_host\_shared\_range()

- From: Dan Williams \<hidden\>
- Date: 2021-10-12 19:13:30 
- List: linux-alpha
- Page: https://ratatoskr.run/linux-alpha/2021/10/1539437
- Thread: https://ratatoskr.run/linux-pci/2021/10/1535998/t.md

```text
On Tue, Oct 12, 2021 at 11:57 AM Reshetova, Elena
[ref] wrote:
>
>
> > I suspect the true number is even higher because that doesn't include IO
> > inside calls to other modules and indirect pointers, correct?
>
> Actually everything should be included. Smatch has cross-function db and
> I am using it for getting the call chains and it follows function pointers.
> Also since I am starting from a list of individual read IOs, every single
> base read IO in drivers/* should be covered as far as I can see. But if it uses
> some weird IO wrappers then the actual list might be higher.

Why analyze individual IO calls? I thought the goal here was to
disable entire classes of ioremap() users?
```