linux-kernel - [PATCH v13 5/5] PCI/ACPI: Centralize pci_aer

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Message-Id: <8a9580c420e6e8f0a863a20c80fcbf2107cb0c0f.1611364025.git.sathyanarayanan.kuppuswamy@linux.intel.com>
Date:   Fri, 22 Jan 2021 17:11:13 -0800
From:   Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
To:     bhelgaas@...gle.com
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        ashok.raj@...el.com, sathyanarayanan.kuppuswamy@...ux.intel.com
Subject: [PATCH v13 5/5] PCI/ACPI: Centralize pci_aer_available() checking

From: Bjorn Helgaas <bhelgaas@...gle.com>

Check pci_aer_available() in acpi_pci_root_create() when we're interpreting
_OSC results so host_bridge->native_aer becomes the single way to determine
whether we control AER capabilities.

Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
---
 drivers/acpi/pci_root.c         | 3 +++
 drivers/pci/pcie/portdrv_core.c | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 16ca58d58fef..f7d2eed3975c 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -939,6 +939,9 @@ struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
 		host_bridge->native_dpc = 1;
 	}
 
+	if (!pci_aer_available())
+		host_bridge->native_aer = 0;
+
 	dev_info(&root->device->dev, "OS native features: SHPCHotplug%c PCIeHotplug%c PME%c AER%c DPC%c LTR%c\n",
 		FLAG(host_bridge->native_shpc_hotplug),
 		FLAG(host_bridge->native_pcie_hotplug),
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index ea1099908d5d..a2b8a4bc91fa 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -220,7 +220,7 @@ static int get_port_device_capability(struct pci_dev *dev)
 	}
 
 #ifdef CONFIG_PCIEAER
-	if (host->native_aer && dev->aer_cap && pci_aer_available()) {
+	if (host->native_aer && dev->aer_cap) {
 		services |= PCIE_PORT_SERVICE_AER;
 
 		/*
-- 
2.25.1