linux-kernel - Re: [PATCH 30/30] PCI: remove pci_get_bus_and

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Date:   Wed, 22 Nov 2017 08:51:24 +0100
From:   Greg KH <greg@...ah.com>
To:     Timur Tabi <timur@...eaurora.org>
Cc:     Sinan Kaya <okaya@...eaurora.org>, linux-pci@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 30/30] PCI: remove pci_get_bus_and_slot() function

On Wed, Nov 22, 2017 at 12:08:45AM -0600, Timur Tabi wrote:
> On 11/21/17 11:55 PM, Sinan Kaya wrote:
> > For places where domain number information is available, I extracted domain number
> > and added into pci_get_domain_bus_and_slot() call such as xen or bn drivers.
> 
> My suggestion is that you restrict your first patch set to only these
> patches.
> 
> > The assumption at this point is for pci_get_bus_and_slot() usages to be caught
> > in code-review.
> 
> How about this:
> 
> static inline struct pci_dev * __deprecated pci_get_bus_and_slot(unsigned
> int bus,
> 						   unsigned int devfn)
> {
> 	return pci_get_domain_bus_and_slot(0, bus, devfn);
> }

Ick, no, why?  What is wrong with removing this function as is?  Don't
mark something as __depreciated if there are no in-kernel users, just
delete it and move on.

If you have out-of-tree drivers, then yes, they can make a wrapper for
this function like this if they really feel the need, or they can get
their code merged :)

thanks,

greg k-h