| Message ID | 20241114030424.45074-1-zhoushengqing@ttyinfo.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [PATCHv2] PCI/ACPI: _DSM PRESERVE_BOOT_CONFIG function rev id doesn't match with spec. | expand |
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index af370628e583..7a4cad0c1f00 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -132,7 +132,7 @@ bool pci_acpi_preserve_config(struct pci_host_bridge *host_bridge) */ obj = acpi_evaluate_dsm_typed(ACPI_HANDLE(&host_bridge->dev), &pci_acpi_dsm_guid, - 1, DSM_PCI_PRESERVE_BOOT_CONFIG, + 2, DSM_PCI_PRESERVE_BOOT_CONFIG, NULL, ACPI_TYPE_INTEGER); if (obj && obj->integer.value == 0) return true;
Per PCI Firmware Specification Revision 3.3 Table 4-7 _DSM Definitions for PCI. Preserve PCI Boot Configuration Initial Revision ID is 2. But the code is 1. v2:add Fixes tag. Fixes: 9d7d5db8e78e ("PCI: Move PRESERVE_BOOT_CONFIG _DSM evaluation to pci_register_host_bridge()") Origin fixes: a78cf9657ba5 ("PCI/ACPI: Evaluate PCI Boot Configuration _DSM") Signed-off-by: Zhou Shengqing <zhoushengqing@ttyinfo.com> --- drivers/pci/pci-acpi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)