linux-kernel - Re: [PATCH 03/10] PCI: dwc: Move config space capability search API

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Date:   Thu, 28 Mar 2019 13:33:20 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Vidya Sagar <vidyas@...dia.com>
Cc:     bhelgaas@...gle.com, robh+dt@...nel.org, mark.rutland@....com,
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Subject: Re: [PATCH 03/10] PCI: dwc: Move config space capability search API

On Tue, Mar 26, 2019 at 08:43:20PM +0530, Vidya Sagar wrote:
> move PCIe config space capability search API to common designware file
> as this can be used by both host and ep mode codes.
> It also adds extended capability search APIs.
> 
> Signed-off-by: Vidya Sagar <vidyas@...dia.com>
> ---
>  drivers/pci/controller/dwc/pcie-designware-ep.c | 37 +------------
>  drivers/pci/controller/dwc/pcie-designware.c    | 73 +++++++++++++++++++++++++
>  drivers/pci/controller/dwc/pcie-designware.h    |  3 +
>  3 files changed, 78 insertions(+), 35 deletions(-)

Just out of curiosity: is there any reason why this driver needs to
reimplement this? Couldn't this be made to work using the standard
pci_find_next_capability() function?

Other than that it might be a good idea to split this into two patches,
one that moves the existing functionality to the common code and another
that adds the extra functionality.

Thierry

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