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Message-ID: <f4791b93-951b-4687-147c-ebec51880f14@intel.com>
Date: Wed, 16 Aug 2023 11:08:09 -0700
From: Dave Jiang <dave.jiang@...el.com>
To: Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>,
<linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-cxl@...r.kernel.org>
CC: Bjorn Helgaas <bhelgaas@...gle.com>, <oohall@...il.com>,
Lukas Wunner <lukas@...ner.de>,
Kuppuswamy Sathyanarayanan
<sathyanarayanan.kuppuswamy@...ux.intel.com>,
Mahesh J Salgaonkar <mahesh@...ux.ibm.com>,
Alison Schofield <alison.schofield@...el.com>,
Vishal Verma <vishal.l.verma@...el.com>,
Ira Weiny <ira.weiny@...el.com>,
Ben Widawsky <bwidawsk@...nel.org>,
Dan Williams <dan.j.williams@...el.com>,
Jonathan Cameron <Jonathan.Cameron@...wei.com>,
Yazen Ghannam <yazen.ghannam@....com>,
Terry Bowman <terry.bowman@....com>,
Robert Richter <rrichter@....com>
Subject: Re: [PATCH v3 3/3] cxl/pci: Replace host_bridge->native_aer with
pcie_aer_is_native()
On 8/3/23 16:01, Smita Koralahalli wrote:
> Use pcie_aer_is_native() to determine the native AER ownership as the
> usage of host_bride->native_aer does not cover command line override of
> AER ownership.
>
> Signed-off-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>
> Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>
> Reviewed-by: Robert Richter <rrichter@....com>
Reviewed-by: Dave Jiang <dave.jiang@...el.com>
> ---
> v2:
> Replaced pcie_aer_is_native() at a later stage for automated
> backports.
> v3:
> Added more context to commit message.
> Added "Reviewed-by" tag.
> ---
> drivers/cxl/pci.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c
> index 2323169b6e5f..44a21ab7add5 100644
> --- a/drivers/cxl/pci.c
> +++ b/drivers/cxl/pci.c
> @@ -529,7 +529,6 @@ static int cxl_pci_setup_regs(struct pci_dev *pdev, enum cxl_regloc_type type,
>
> static int cxl_pci_ras_unmask(struct pci_dev *pdev)
> {
> - struct pci_host_bridge *host_bridge = pci_find_host_bridge(pdev->bus);
> struct cxl_dev_state *cxlds = pci_get_drvdata(pdev);
> void __iomem *addr;
> u32 orig_val, val, mask;
> @@ -542,7 +541,7 @@ static int cxl_pci_ras_unmask(struct pci_dev *pdev)
> }
>
> /* BIOS has PCIe AER error control */
> - if (!host_bridge->native_aer)
> + if (!pcie_aer_is_native(pdev))
> return 0;
>
> rc = pcie_capability_read_word(pdev, PCI_EXP_DEVCTL, &cap);
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