linux-kernel - Re: [PATCH 0/5] PCI: dwc: pci-dra7xx: miscellaneous improvements

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Message-ID: <3e61b95e-f3e4-b5f2-d87f-eec42bcd630f@lucaceresoli.net>
Date:   Tue, 18 May 2021 19:06:20 +0200
From:   Luca Ceresoli <luca@...aceresoli.net>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     linux-pci@...r.kernel.org, linux-omap@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Kishon Vijay Abraham I <kishon@...com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Rob Herring <robh@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jingoo Han <jingoohan1@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>
Subject: Re: [PATCH 0/5] PCI: dwc: pci-dra7xx: miscellaneous improvements

Bjorn,

On 17/05/21 18:36, Bjorn Helgaas wrote:
> On Mon, May 17, 2021 at 05:41:17PM +0200, Luca Ceresoli wrote:
>> This is an series of mixed improvements to the DRA7 PCI controller driver:
>> allow building as a loadabel module, allow to get and enable a clock and a
>> small cleanup.
>>
>> Luca
>>
>> Luca Ceresoli (5):
>>   PCI: dwc: export more symbols to allow modular drivers
>>   PCI: dwc: pci-dra7xx: make it a kernel module
>>   PCI: dwc: pci-dra7xx: allow to build as a loadable module
>>   PCI: dwc: pci-dra7xx: remove unused include
>>   PCI: dwc: pci-dra7xx: get an optional clock
> 
> This driver has a poor record of subject lines:
> 
>   PCI: pci-dra7xx: Prepare for deferred probe with module_platform_driver
>   PCI: dwc: Move dw_pcie_setup_rc() to DWC common code
>   PCI: dwc/dra7xx: Use the common MSI irq_chip
>   PCI: dwc: pci-dra7xx: Fix runtime PM imbalance on error
> 
> The "PCI: dwc:" ones are fine -- they apply to the shared dwc core,
> not specifically to dra7xx.
> 
> The driver-specific ones:
> 
>   PCI: pci-dra7xx:
>   PCI: dwc/dra7xx:
>   PCI: dwc: pci-dra7xx:
> 
> are redundant and waste space.  There's no need to mention "dwc" for
> dra7xx-specific things, and no need to mention "PCI" twice.
> 
> We should use the "PCI: dra7xx:" prefix for things specific to this
> driver.
> 
> The rest of the subject line should start with a capital letter.  The
> subject line should contain specific information when practical.  For
> example,
> 
>   PCI: dwc: Export dw_pcie_link_up(), dw_pcie_ep_reset_bar() for modular drivers
>   PCI: dra7xx: Allow building as module
>   PCI: dra7xx: Remove unused linux/init.h include
>   PCI: dra7xx: Get optional external clock
> 
> I would squash 2/5 and 3/5, similar to a98d2187efd9 ("PCI: meson:
> Build as module by default") and 526a76991b7b ("PCI: aardvark:
> Implement driver 'remove' function and allow to build it as module").

Thanks for the prompt review. I'll wait a few days for any more comments
and then resend.


-- 
Luca