linux-kernel - Re: [PATCH 03/11] PCI: endpoint: Rename core_init() callback in 'struct pci_epc_event

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Date: Tue, 26 Mar 2024 13:26:22 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Niklas Cassel <cassel@...nel.org>
Cc: Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Jonathan Hunter <jonathanh@...dia.com>,
	Jingoo Han <jingoohan1@...il.com>,
	Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
	linux-pci@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org, mhi@...ts.linux.dev,
	linux-tegra@...r.kernel.org
Subject: Re: [PATCH 03/11] PCI: endpoint: Rename core_init() callback in
 'struct pci_epc_event_ops' to init()

On Fri, Mar 22, 2024 at 05:08:48PM +0100, Niklas Cassel wrote:
> On Thu, Mar 14, 2024 at 08:53:42PM +0530, Manivannan Sadhasivam wrote:
> > core_init() callback is used to notify the EPC initialization event to the
> > EPF drivers. The 'core' prefix was used indicate that the controller IP
> > core has completed initialization. But it serves no purpose as the EPF
> > driver will only care about the EPC initialization as a whole and there is
> > no real benefit to distinguish the IP core part.
> > 
> > So let's rename the core_init() callback in 'struct pci_epc_event_ops' to
> > just init() to make it more clear.
> > 
> > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> > ---
> >  drivers/pci/endpoint/functions/pci-epf-mhi.c  |  4 ++--
> >  drivers/pci/endpoint/functions/pci-epf-test.c |  4 ++--
> >  drivers/pci/endpoint/pci-epc-core.c           | 16 ++++++++--------
> >  include/linux/pci-epf.h                       |  4 ++--
> >  4 files changed, 14 insertions(+), 14 deletions(-)
> > 
> > diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/endpoint/functions/pci-epf-mhi.c
> > index e5d67aec7574..da894a9a447e 100644
> > --- a/drivers/pci/endpoint/functions/pci-epf-mhi.c
> > +++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c
> > @@ -700,7 +700,7 @@ static void pci_epf_mhi_dma_deinit(struct pci_epf_mhi *epf_mhi)
> >  	epf_mhi->dma_chan_rx = NULL;
> >  }
> >  
> > -static int pci_epf_mhi_core_init(struct pci_epf *epf)
> > +static int pci_epf_mhi_epc_init(struct pci_epf *epf)
> >  {
> >  	struct pci_epf_mhi *epf_mhi = epf_get_drvdata(epf);
> >  	const struct pci_epf_mhi_ep_info *info = epf_mhi->info;
> > @@ -881,7 +881,7 @@ static void pci_epf_mhi_unbind(struct pci_epf *epf)
> >  }
> >  
> >  static const struct pci_epc_event_ops pci_epf_mhi_epc_event_ops = {
> > -	.core_init = pci_epf_mhi_core_init,
> > +	.init = pci_epf_mhi_epc_init,
> >  };
> >  
> >  static const struct pci_epc_bus_event_ops pci_epf_mhi_bus_event_ops = {
> > diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
> > index 751dab5799d5..1dae0fce8fc4 100644
> > --- a/drivers/pci/endpoint/functions/pci-epf-test.c
> > +++ b/drivers/pci/endpoint/functions/pci-epf-test.c
> > @@ -746,7 +746,7 @@ static int pci_epf_test_set_bar(struct pci_epf *epf)
> >  	return 0;
> >  }
> >  
> > -static int pci_epf_test_core_init(struct pci_epf *epf)
> > +static int pci_epf_test_epc_init(struct pci_epf *epf)
> 
> Why have _epc_ init in the name at all?
> 
> Isn't
> static int pci_epf_test_init(struct pci_epf *epf)
> 
> Enough?
> 
> From my perspective, it is the EPF that is initializing
> (by configuring the BARS according to it's liking),
> not the EPC initializing.
> 

Hmm, you are right. It makes sense to remove 'epc' from the naming.

- Mani

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