linux-kernel - Re: [PATCH] bus: mhi: host: pci_generic: Drop redundant pci_enable_pcie_error

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Message-ID: <71d2cafd-ddf7-25a6-4df7-01f686cb322f@quicinc.com>
Date:   Tue, 7 Mar 2023 15:32:14 -0700
From:   Jeffrey Hugo <quic_jhugo@...cinc.com>
To:     Bjorn Helgaas <helgaas@...nel.org>,
        Manivannan Sadhasivam <mani@...nel.org>
CC:     <mhi@...ts.linux.dev>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: [PATCH] bus: mhi: host: pci_generic: Drop redundant
 pci_enable_pcie_error_reporting()

On 3/7/2023 1:16 PM, Bjorn Helgaas wrote:
> From: Bjorn Helgaas <bhelgaas@...gle.com>
> 
> pci_enable_pcie_error_reporting() enables the device to send ERR_*
> Messages.  Since f26e58bf6f54 ("PCI/AER: Enable error reporting when AER is
> native"), the PCI core does this for all devices during enumeration, so the
> driver doesn't need to do it itself.
> 
> Remove the redundant pci_enable_pcie_error_reporting() call from the
> driver.  Also remove the corresponding pci_disable_pcie_error_reporting()
> from the driver .remove() path.
> 
> Note that this only controls ERR_* Messages from the device.  An ERR_*
> Message may cause the Root Port to generate an interrupt, depending on the
> AER Root Error Command register managed by the AER service driver.
> 
> Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>

Looks sane to me.

Reviewed-by: Jeffrey Hugo <quic_jhugo@...cinc.com>