linux-kernel - Re: [PATCH v3] PCI/portdrv: Allow AER service only for Root Ports & RCECs

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Date:   Mon, 12 Dec 2022 00:46:11 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Sathyanarayanan Kuppuswamy 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: [PATCH v3] PCI/portdrv: Allow AER service only for Root Ports &
 RCECs

On Fri, Dec 09, 2022 at 06:29:22PM -0600, Bjorn Helgaas wrote:
> +	if ((pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT ||
> +             pci_pcie_type(dev) == PCI_EXP_TYPE_RC_EC) &&
> +	    dev->aer_cap && pci_aer_available() &&
>  	    (pcie_ports_native || host->native_aer))

Eww, this is really hard to follow.  Can you split this out into
a little helper, that actually documents the decisions based
on some of the wording you have in the current comit message?