linux-kernel - [PATCH 5/6] MIPS: OCTEON: Remove redundant ECRC Generation Enable

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Date:   Mon,  4 Oct 2021 23:29:31 +0530
From:   Naveen Naidu <naveennaidu479@...il.com>
To:     bhelgaas@...gle.com, tsbogend@...ha.franken.de
Cc:     Naveen Naidu <naveennaidu479@...il.com>,
        linux-kernel-mentees@...ts.linuxfoundation.org,
        skhan@...uxfoundation.org, linux-kernel@...r.kernel.org,
        linux-pci@...r.kernel.org, linux-mips@...r.kernel.org
Subject: [PATCH 5/6] MIPS: OCTEON: Remove redundant ECRC Generation Enable

e8635b484f64 ("MIPS: Add Cavium OCTEON PCI support.") added MIPS
specific code to enable PCIe and AER error reporting (*irrespective
of CONFIG_PCIEAER value*) because PCI core didn't do that at the time.

Currently when CONFIG_PCIEAER=y, ECRC generation is enabled by
pcie_set_ecrc_checking() in the aer_probe() path.

It is now no longer necessary for Octeon code to enable ECRC since
it's done when PCIe bus loads the AER service driver.

Signed-off-by: Naveen Naidu <naveennaidu479@...il.com>
---
 arch/mips/pci/pci-octeon.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c
index a82cf48f00ab..b973fc464c21 100644
--- a/arch/mips/pci/pci-octeon.c
+++ b/arch/mips/pci/pci-octeon.c
@@ -124,15 +124,6 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
 		 */
 		/* PCI_ERR_UNCOR_SEVER - Uncorrectable Error Severity */
 
-		/* Advanced Error Capabilities */
-		pci_read_config_dword(dev, pos + PCI_ERR_CAP, &dconfig);
-		/* ECRC Generation Enable */
-		if (config & PCI_ERR_CAP_ECRC_GENC)
-			config |= PCI_ERR_CAP_ECRC_GENE;
-		/* ECRC Check Enable */
-		if (config & PCI_ERR_CAP_ECRC_CHKC)
-			config |= PCI_ERR_CAP_ECRC_CHKE;
-		pci_write_config_dword(dev, pos + PCI_ERR_CAP, dconfig);
 		/* PCI_ERR_HEADER_LOG - Header Log Register (16 bytes) */
 		/* Report all errors to the root complex */
 		pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND,
-- 
2.25.1