[PATCH 5/9] x86/pci: Rename acpi_mcfg_check_entry() to acpi_mcfg_valid_entry()

Bjorn Helgaas
2023-11-21T18:37:15Z

"acpi_mcfg_check_entry()" doesn't give a hint about what the return value
means. Rename it to "acpi_mcfg_valid_entry()", convert the return value to
bool, and update the return values and callers to match so testing
"if (acpi_mcfg_valid_entry())" makes sense.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
arch/x86/pci/mmconfig-shared.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index 896cc11013bd..91fd7921d221 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -576,22 +576,22 @@ static void __init pci_mmcfg_reject_broken(int early)
}
}

-static int __init acpi_mcfg_check_entry(struct acpi_table_mcfg *mcfg,
- struct acpi_mcfg_allocation *cfg)
+static bool __init acpi_mcfg_valid_entry(struct acpi_table_mcfg *mcfg,
+ struct acpi_mcfg_allocation *cfg)
{
if (cfg->address < 0xFFFFFFFF)
- return 0;
+ return true;

if (!strncmp(mcfg->header.oem_id, "SGI", 3))
- return 0;
+ return true;

if ((mcfg->header.revision >= 1) && (dmi_get_bios_year() >= 2010))
- return 0;
+ return true;

pr_err("ECAM at %#llx for %04x [bus %02x-%02x] is above 4GB, ignored\n",
cfg->address, cfg->pci_segment, cfg->start_bus_number,
cfg->end_bus_number);
- return -EINVAL;
+ return false;
}

static int __init pci_parse_mcfg(struct acpi_table_header *header)
@@ -622,7 +622,7 @@ static int __init pci_parse_mcfg(struct acpi_table_header *header)
cfg_table = (struct acpi_mcfg_allocation *) &mcfg[1];
for (i = 0; i < entries; i++) {
cfg = &cfg_table[i];
- if (acpi_mcfg_check_entry(mcfg, cfg)) {
+ if (!acpi_mcfg_valid_entry(mcfg, cfg)) {
free_all_mmcfg();
return -ENODEV;
}
--
2.34.1