From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(),
 pci_iomap_host_shared_range()
Date: Tue, 12 Oct 2021 12:49:06 -0700
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To: Dan Williams <dan.j.williams@intel.com>, "Reshetova, Elena" <elena.reshetova@intel.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>, Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, Peter Zijlstra <peterz@infradead.org>, "Lutomirski, Andy" <luto@kernel.org>, Bjorn Helgaas <bhelgaas@google.com>, Richard Henderson <rth@twiddle.net>, Thomas Bogendoerfer <tsbogend@alpha.franken.de>, James E J Bottomley <James.Bottomley@hansenpartnership.com>, Helge Deller <deller@gmx.de>, "David S . Miller" <davem@davemloft.net>, Arnd Bergmann <arnd@arndb.de>, Jonathan Corbet <corbet@lwn.net>, Paolo Bonzini <pbonzini@redhat.com>, David Hildenbrand <david@redhat.com>, Andrea Arcangeli <aarcange@redhat.com>, Josh Poimboeuf <jpoimboe>


On 10/12/2021 12:13 PM, Dan Williams wrote:
> On Tue, Oct 12, 2021 at 11:57 AM Reshetova, Elena
> <elena.reshetova@intel.com> 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?

This is everything that would need to be moved somewhere else if we 
didn't disable the entire classes of ioremap users.

-Andi