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Re: [PATCH 07/20] PCI: implement Devres interface to map PCI config space

From Andy Shevchenko <andy.shevchenko@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH 07/20] PCI: implement Devres interface to map PCI config space
Date 2017-03-02 14:30 +0100
Message-ID <tgyXU-2Pg-3@gated-at.bofh.it> (permalink)
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On Thu, Mar 2, 2017 at 2:05 PM, Lorenzo Pieralisi
<lorenzo.pieralisi@arm.com> wrote:
> On Thu, Mar 02, 2017 at 01:54:42AM +0200, Andy Shevchenko wrote:
>> On Mon, Feb 27, 2017 at 5:14 PM, Lorenzo Pieralisi
>> <lorenzo.pieralisi@arm.com> wrote:

+Cc: Tejun, who is initial author of PCI managed resources implementation.

> I thought about that and did not do it because here we are remapping
> resources that are _not_ PCI bus resources (ie it is not PCI BARs we
> are remapping), keeping the devm_* prefix would be more consistent
> to the typical device drivers remapping functions pattern (ie a
> typical PCI host controller driver would mix devm_ and pcim_ calls
> which is a bit hard to parse), that was my rationale.
>
> I am not too fussed about that either way, I am happy to update it to
> pcim_* though, it is Bjorn/Arnd's decision.

I would vote for pcim_*() variant.

>> 2. If you may notice there is no separate pcim_*map*() stuff, they are
>> dynamically adapting to the case.
>
> I do not understand what you mean here I would ask you to elaborate
> a bit more please so that I can do something about it.

Oh, sorry, there are two examples currently, i.e.
pci_enable_msi()/pci_enable_msix() and pci_request_region*() which has
no "m" in the name, but are managed on release by pcim_release().
Some developers consider this as a bad idea, but so far no patch has
been sent to introduce pcim_*() variants of those.

So, regarding to your stuff, I would stick with "pcim" prefix.

-- 
With Best Regards,
Andy Shevchenko

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Thread

Re: [PATCH 07/20] PCI: implement Devres interface to map PCI config space Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-03-02 03:10 +0100
  Re: [PATCH 07/20] PCI: implement Devres interface to map PCI config  space Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-02 13:10 +0100
    Re: [PATCH 07/20] PCI: implement Devres interface to map PCI config space Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-03-02 14:30 +0100
      Re: [PATCH 07/20] PCI: implement Devres interface to map PCI config  space Thierry Reding <thierry.reding@gmail.com> - 2017-03-02 21:20 +0100
      Re: [PATCH 07/20] PCI: implement Devres interface to map PCI config  space Tejun Heo <tj@kernel.org> - 2017-03-03 00:20 +0100

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