linux-kernel - Re: [PATCH 0/9] PCI/AER: Remove redundant Device Control Error Reporting Enable

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Message-ID: <20230119042619.GA288847@bhelgaas>
Date:   Wed, 18 Jan 2023 22:26:19 -0600
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Sathyanarayanan Kuppuswamy 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: [PATCH 0/9] PCI/AER: Remove redundant Device Control Error
 Reporting Enable

On Wed, Jan 18, 2023 at 07:55:33PM -0800, Sathyanarayanan Kuppuswamy wrote:
> On 1/18/23 3:46 PM, Bjorn Helgaas wrote:
> > From: Bjorn Helgaas <bhelgaas@...gle.com>
> > 
> > Since f26e58bf6f54 ("PCI/AER: Enable error reporting when AER is native"),
> > ths PCI core sets the Device Control bits that enable error reporting for
> > PCIe devices.
> > 
> > This series removes redundant calls to pci_enable_pcie_error_reporting()
> > that do the same thing from the AER driver and several NIC drivers.
> > 
> > There are several more drivers where this should be removed; I started with
> > just the Intel drivers here.
> > 
> > Bjorn Helgaas (9):
> >   PCI/AER: Remove redundant Device Control Error Reporting Enable
> >   e1000e: Remove redundant pci_enable_pcie_error_reporting()
> >   fm10k: Remove redundant pci_enable_pcie_error_reporting()
> >   i40e: Remove redundant pci_enable_pcie_error_reporting()
> >   iavf: Remove redundant pci_enable_pcie_error_reporting()
> >   ice: Remove redundant pci_enable_pcie_error_reporting()
> >   igb: Remove redundant pci_enable_pcie_error_reporting()
> >   igc: Remove redundant pci_enable_pcie_error_reporting()
> >   ixgbe: Remove redundant pci_enable_pcie_error_reporting()
> 
> It should be simpler to do in one patch. Any reason to split
> it into multiple patches?

Sure, the driver patches could easily be squashed, either by me or be
the netdev folks if they prefer it that way.  There are close to 50
callers, and I hesitate to do them all in a single patch because it
becomes unwieldy to backport (probably pointless for this situation)
or to revert if there's any issue.

These are all trivial removals, but there are a few that are more
complicated and will require closer review, so I didn't include those
here.

> >  drivers/net/ethernet/intel/e1000e/netdev.c    |  7 ---
> >  drivers/net/ethernet/intel/fm10k/fm10k_pci.c  |  5 --
> >  drivers/net/ethernet/intel/i40e/i40e_main.c   |  4 --
> >  drivers/net/ethernet/intel/iavf/iavf_main.c   |  5 --
> >  drivers/net/ethernet/intel/ice/ice_main.c     |  3 --
> >  drivers/net/ethernet/intel/igb/igb_main.c     |  5 --
> >  drivers/net/ethernet/intel/igc/igc_main.c     |  5 --
> >  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  5 --
> >  drivers/pci/pcie/aer.c                        | 48 -------------------
> >  9 files changed, 87 deletions(-)
> > 
> 
> -- 
> Sathyanarayanan Kuppuswamy
> Linux Kernel Developer