[PATCH] PCI/ACPI: Suppress missing MCFG message

[Jeremy Linton]

MCFG is an optional ACPI table. Given there are machines
without PCI(e) (or it is hidden) we have been receiving
queries/complaints about what this message means given
its being presented as an error.

Lets only print an error if something is wrong with the
the given table/etc. The ACPI table list printed at boot
will continue to provide a way to detect when the table
is missing.

Signed-off-by: Jeremy Linton <jeremy.linton at arm.com>
---
 drivers/acpi/pci_mcfg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/pci_mcfg.c b/drivers/acpi/pci_mcfg.c
index 54b36b7ad47d..0bc8c012f157 100644
--- a/drivers/acpi/pci_mcfg.c
+++ b/drivers/acpi/pci_mcfg.c
@@ -279,6 +279,6 @@ static __init int pci_mcfg_parse(struct acpi_table_header *header)
 void __init pci_mmcfg_late_init(void)
 {
 	int err = acpi_table_parse(ACPI_SIG_MCFG, pci_mcfg_parse);
-	if (err)
+	if (err && err != -ENODEV)
 		pr_err("Failed to parse MCFG (%d)\n", err);
 }
-- 
2.25.4