linux-kernel - Re: [PATCH v6 2/2] PCI/ERR: Split the fatal and non-fatal error recovery handling

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Message-ID: <20201015065222.GB12987@infradead.org>
Date:   Thu, 15 Oct 2020 07:52:22 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Kuppuswamy Sathyanarayanan <sathyanarayanan.nkuppuswamy@...il.com>
Cc:     bhelgaas@...gle.com, okaya@...nel.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, ashok.raj@...el.com,
        sathyanarayanan.kuppuswamy@...ux.intel.com
Subject: Re: [PATCH v6 2/2] PCI/ERR: Split the fatal and non-fatal error
 recovery handling

>  /* PCI error reporting and recovery */
> -pci_ers_result_t pcie_do_recovery(struct pci_dev *dev,
> -			pci_channel_state_t state,
> +pci_ers_result_t pcie_do_nonfatal_recovery(struct pci_dev *dev);
> +
> +pci_ers_result_t pcie_do_fatal_recovery(struct pci_dev *dev,
>  			pci_ers_result_t (*reset_link)(struct pci_dev *pdev));

Now that both functions have descriptive names (thanks for that!),
the "_do" component of the names can be dropped.

> +pci_ers_result_t pcie_do_fatal_recovery(struct pci_dev *dev,
>  			pci_ers_result_t (*reset_link)(struct pci_dev *pdev))
> +{
> +	struct pci_dev *udev;
> +	struct pci_bus *parent;
> +	struct pci_dev *pdev, *temp;
> +	pci_ers_result_t result;
> +
> +	if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
> +		udev = dev;
> +	else
> +		udev = dev->bus->self;
> +
> +	parent = udev->subordinate;
> +	pci_walk_bus(parent, pci_dev_set_disconnected, NULL);
> +
> +        pci_lock_rescan_remove();
> +        pci_dev_get(dev);
> +        list_for_each_entry_safe_reverse(pdev, temp, &parent->devices,
> +					 bus_list) {
> +		pci_stop_and_remove_bus_device(pdev);
> +	}
> +
> +	result = reset_link(udev);

Some of the indentation seems strange here, please use tab based
indents everywhere.