linux-kernel - [PATCH 02/15] cxl/aer/pci: Update is_internal_error() to be callable w/o CONFIG_PCIEAER

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Message-ID: <20241008221657.1130181-3-terry.bowman@amd.com>
Date: Tue, 8 Oct 2024 17:16:44 -0500
From: Terry Bowman <terry.bowman@....com>
To: <ming4.li@...el.com>, <linux-cxl@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-pci@...r.kernel.org>,
	<dave@...olabs.net>, <jonathan.cameron@...wei.com>, <dave.jiang@...el.com>,
	<alison.schofield@...el.com>, <vishal.l.verma@...el.com>,
	<dan.j.williams@...el.com>, <bhelgaas@...gle.com>, <mahesh@...ux.ibm.com>,
	<oohall@...il.com>, <Benjamin.Cheatham@....com>, <rrichter@....com>,
	<nathan.fontenot@....com>, <smita.koralahallichannabasappa@....com>,
	<terry.bowman@....com>
Subject: [PATCH 02/15] cxl/aer/pci: Update is_internal_error() to be callable w/o CONFIG_PCIEAER_CXL

CXL port error handling will be updated in future and will use
logic to determine if an error requires CXL or PCIe processing.
Internal errors are one indicator to identify an error is a CXL
protocol error.

is_internal_error() is currently limited by CONFIG_PCIEAER_CXL
kernel config.

Update the is_internal_error() function's declaration such that it is
always available regardless if CONFIG_PCIEAER_CXL kernel config
is enabled or disabled.

Signed-off-by: Terry Bowman <terry.bowman@....com>
---
 drivers/pci/pcie/aer.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
index a9792b9576b4..1e72829a249f 100644
--- a/drivers/pci/pcie/aer.c
+++ b/drivers/pci/pcie/aer.c
@@ -941,8 +941,15 @@ static bool find_source_device(struct pci_dev *parent,
 	return true;
 }
 
-#ifdef CONFIG_PCIEAER_CXL
+static bool is_internal_error(struct aer_err_info *info)
+{
+	if (info->severity == AER_CORRECTABLE)
+		return info->status & PCI_ERR_COR_INTERNAL;
 
+	return info->status & PCI_ERR_UNC_INTN;
+}
+
+#ifdef CONFIG_PCIEAER_CXL
 /**
  * pci_aer_unmask_internal_errors - unmask internal errors
  * @dev: pointer to the pcie_dev data structure
@@ -994,14 +1001,6 @@ static bool cxl_error_is_native(struct pci_dev *dev)
 	return (pcie_ports_native || host->native_aer);
 }
 
-static bool is_internal_error(struct aer_err_info *info)
-{
-	if (info->severity == AER_CORRECTABLE)
-		return info->status & PCI_ERR_COR_INTERNAL;
-
-	return info->status & PCI_ERR_UNC_INTN;
-}
-
 static int cxl_rch_handle_error_iter(struct pci_dev *dev, void *data)
 {
 	struct aer_err_info *info = (struct aer_err_info *)data;
-- 
2.34.1