linux-kernel - Re: [PATCH v11 06/16] PCI/ERR: Simplify by using pci_upstream

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Date:   Tue, 17 Nov 2020 12:11:29 -0800
From:   "Kuppuswamy, Sathyanarayanan" 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
To:     Sean V Kelley <sean.v.kelley@...el.com>, bhelgaas@...gle.com,
        Jonathan.Cameron@...wei.com, xerces.zhao@...il.com,
        rafael.j.wysocki@...el.com, ashok.raj@...el.com,
        tony.luck@...el.com, sathyanarayanan.kuppuswamy@...el.com,
        qiuxu.zhuo@...el.com
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v11 06/16] PCI/ERR: Simplify by using
 pci_upstream_bridge()



On 11/17/20 11:19 AM, Sean V Kelley wrote:
> Use pci_upstream_bridge() in place of dev->bus->self.  No functional change
> intended.
> 
> [bhelgaas: split to separate patch]
> Link: https://lore.kernel.org/r/20201002184735.1229220-6-seanvk.dev@oregontracks.org
> Signed-off-by: Sean V Kelley <sean.v.kelley@...el.com>
> Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
> Acked-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>
> ---
>   drivers/pci/pcie/err.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c
> index db149c6ce4fb..05f61da5ed9d 100644
> --- a/drivers/pci/pcie/err.c
> +++ b/drivers/pci/pcie/err.c
> @@ -159,7 +159,7 @@ pci_ers_result_t pcie_do_recovery(struct pci_dev *dev,
>   	 */
>   	if (!(pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT ||
>   	      pci_pcie_type(dev) == PCI_EXP_TYPE_DOWNSTREAM))
> -		dev = dev->bus->self;
> +		dev = pci_upstream_bridge(dev);
Makes it easier to read.
>   	bus = dev->subordinate;
>   
>   	pci_dbg(dev, "broadcast error_detected message\n");
> 

-- 
Sathyanarayanan Kuppuswamy
Linux Kernel Developer