linux-kernel - Re: [RFC PATCH v1 05/21] arm64: PCI: Migrate ACPI related functions to pci-acpi.c

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Date:   Fri, 4 Aug 2023 13:53:26 +0530
From:   Sunil V L <sunilvl@...tanamicro.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     linux-doc@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-acpi@...r.kernel.org, linux-pci@...r.kernel.org,
        Jonathan Corbet <corbet@....net>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>,
        Daniel Scally <djrscally@...il.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Anup Patel <anup@...infault.org>,
        Marc Zyngier <maz@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Robert Moore <robert.moore@...el.com>,
        Haibo Xu <haibo1.xu@...el.com>,
        Andrew Jones <ajones@...tanamicro.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Atish Kumar Patra <atishp@...osinc.com>
Subject: Re: [RFC PATCH v1 05/21] arm64: PCI: Migrate ACPI related functions
 to pci-acpi.c

On Fri, Aug 04, 2023 at 08:53:14AM +0300, Andy Shevchenko wrote:
> On Thu, Aug 03, 2023 at 11:29:00PM +0530, Sunil V L wrote:
> > The functions defined in arm64 for ACPI support are required
> > for RISC-V also. To avoid duplication, copy these functions
> > to common location.
> 
> ...
> 
> >  }
> > +
> 
> Stray change.
> 
Let me remove this in next version.

> >  arch_initcall(acpi_pci_init);
> > +
> > +#if defined(CONFIG_ARM64)
> 
> ...
> 
> > +	cfg = pci_ecam_create(dev, &cfgres, bus_res, ecam_ops);
> > +	if (IS_ERR(cfg)) {
> > +		dev_err(dev, "%04x:%pR error %ld mapping ECAM\n", seg, bus_res,
> > +			PTR_ERR(cfg));
> > +		return NULL;
> > +	}
> > +
> > +	return cfg;
> 
> Can be
> 
> 	cfg = pci_ecam_create(dev, &cfgres, bus_res, ecam_ops);
> 	ret = PTR_ERR_OR_ZERO(cfg);
> 	if (ret) {
> 		dev_err(dev, "%04x:%pR error %d mapping ECAM\n", seg, bus_res, ret);
> 
> but as far as I understand this is in the original code like this, so consider
> as a suggestion for further cleanups.
>

Good suggestion!. Sure, we can cleanup as a follow on patch.

Thanks,
Sunil