linux-kernel - [PATCH V1] PCI/AER: Configure ECRC only AER is native

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Date:   Thu, 12 Jan 2023 02:01:16 +0530
From:   Vidya Sagar <vidyas@...dia.com>
To:     <bhelgaas@...gle.com>, <ruscur@...sell.cc>, <oohall@...il.com>,
        <treding@...dia.com>, <jonathanh@...dia.com>
CC:     <linux-pci@...r.kernel.org>, <linuxppc-dev@...ts.ozlabs.org>,
        <linux-kernel@...r.kernel.org>, <vsethi@...dia.com>,
        <kthota@...dia.com>, <mmaddireddy@...dia.com>, <vidyas@...dia.com>,
        <sagar.tv@...il.com>
Subject: [PATCH V1] PCI/AER: Configure ECRC only AER is native

As the ECRC configuration bits are part of AER registers, configure
ECRC only if AER is natively owned by the kernel.

Signed-off-by: Vidya Sagar <vidyas@...dia.com>
---
 drivers/pci/pcie/aer.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
index e2d8a74f83c3..730b47bdcdef 100644
--- a/drivers/pci/pcie/aer.c
+++ b/drivers/pci/pcie/aer.c
@@ -184,6 +184,9 @@ static int disable_ecrc_checking(struct pci_dev *dev)
  */
 void pcie_set_ecrc_checking(struct pci_dev *dev)
 {
+	if (!pcie_aer_is_native(dev))
+		return;
+
 	switch (ecrc_policy) {
 	case ECRC_POLICY_DEFAULT:
 		return;
-- 
2.17.1