linux-kernel - Re: [PATCH 1/4] PCI: Replace dev_*() printk wrappers with pci

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Date:   Tue, 30 Apr 2019 17:26:25 -0500
From:   Frederick Lawler <fred@...dlawl.com>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        mika.westerberg@...ux.intel.com, lukas@...ner.de,
        andriy.shevchenko@...ux.intel.com, keith.busch@...el.com,
        mr.nuke.me@...il.com, liudongdong3@...wei.com, thesven73@...il.com
Subject: Re: [PATCH 1/4] PCI: Replace dev_*() printk wrappers with pci_*()
 printk wrappers

Bjorn,

Bjorn Helgaas wrote on 4/28/19 7:52 PM:
> On Sun, Apr 28, 2019 at 07:02:58PM -0500, Bjorn Helgaas wrote:
>> On Sat, Apr 27, 2019 at 02:13:01PM -0500, fred@...dlawl.com wrote:
>>> From: Frederick Lawler <fred@...dlawl.com>
>>>
>>> Replace remaining instances of dev_*() printk wrappers with pci_*()
>>> printk wrappers. No functional change intended.
>>>
>>> Signed-off-by: Frederick Lawler <fred@...dlawl.com>
>>> ---
>>>   drivers/pci/pcie/aer.c        | 13 ++++++-------
>>>   drivers/pci/pcie/aer_inject.c |  4 ++--
>>>   drivers/pci/pcie/dpc.c        | 27 ++++++++++++---------------
>>>   3 files changed, 20 insertions(+), 24 deletions(-)
> 
>>>   	aer_enable_rootport(rpc);
>>> -	dev_info(device, "AER enabled with IRQ %d\n", dev->irq);
>>> +	pci_info(pdev, "AER enabled with IRQ %d\n", dev->irq);
>>
>> And this, and many others below.  *This* patch should only convert
>>
>>    - pci_printk(KERN_DEBUG, pdev, ...)
>>    + pci_info(pdev, ...)
>>
>> and
>>
>>    - dev_printk(KERN_DEBUG, pcie_dev, ...)
>>    + dev_info(pcie_dev, ...)
> 
> Just to clarify, I do *want* both changes, just in separate patches.
> So we'd have
> 
>    1) Convert KERN_DEBUG uses to pci_info() for pci_dev usage and to
>       dev_info() for pcie_device usage.  I think pciehp is probably an
>       exception to this; this patch shouldn't touch ctrl_dbg().
> 
>    2) Convert "dev_info(pcie_device)" to "pci_info(pci_dev)".  It might
>       be worth doing this in separate patches for each service.  If we
>       decide they're simple enough to combine, that's trivial for me to
>       do.  It's a little more hassle to split things up afterwards.
> 
>       In pciehp, if you do this in the ctrl_*() definitions, it will
>       make the patch much smaller.
> 
>    3) In pciehp, ctrl_dbg() could probably be changed to use pci_dbg()
>       so we'd use the standard kernel dynamic debug stuff instead of
>       having the pciehp-specific module parameter.
> 
> Thanks a lot for working on all this.  I think it will make the user
> experience significantly simpler.
> 
> Bjorn
> 

Will do, thanks!

Frederick Lawler