[PATCH 01/18] EDAC/amd64: Don't set up EDAC PCI control on Family 17h+

From: Yazen Ghannam
Date: Mon May 09 2022 - 10:56:00 EST


EDAC PCI control is used to detect/report legacy PCI errors like
"Parity" and "SERROR". Modern AMD systems use PCIe Advanced Error
Reporting (AER), and legacy PCI errors should not be reported.

Remove EDAC PCI control setup on AMD Family 17h and later systems.

Signed-off-by: Yazen Ghannam <yazen.ghannam@xxxxxxx>
---
drivers/edac/amd64_edac.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 2f854feeeb23..04fa96592317 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -4367,12 +4367,12 @@ static int __init amd64_edac_init(void)
}

/* register stuff with EDAC MCE */
- if (boot_cpu_data.x86 >= 0x17)
+ if (boot_cpu_data.x86 >= 0x17) {
amd_register_ecc_decoder(decode_umc_error);
- else
+ } else {
amd_register_ecc_decoder(decode_bus_error);
-
- setup_pci_device();
+ setup_pci_device();
+ }

#ifdef CONFIG_X86_32
amd64_err("%s on 32-bit is unsupported. USE AT YOUR OWN RISK!\n", EDAC_MOD_STR);
--
2.25.1