diff options
| author | Joerg Roedel <jroedel@suse.de> | 2021-08-24 15:20:53 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2021-09-29 00:19:10 +0300 |
| commit | 87f1f87a16818c36431391ea8c30ea926cab917f (patch) | |
| tree | 443e0f39eae42e3b9d69d2affc903c85a2150053 /drivers/acpi/pci_root.c | |
| parent | 4c6f6060b7c4fe058981d17784684429c5491243 (diff) | |
| download | linux-87f1f87a16818c36431391ea8c30ea926cab917f.tar.xz | |
PCI/ACPI: Move _OSC query checks to separate function
Move the checks about whether the _OSC controls are requested from the
firmware to a separate function.
Link: https://lore.kernel.org/r/20210824122054.29481-4-joro@8bytes.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael@kernel.org>
Diffstat (limited to 'drivers/acpi/pci_root.c')
| -rw-r--r-- | drivers/acpi/pci_root.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index ed4e6b55e9bc..f12e512bcddc 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -449,6 +449,24 @@ static u32 calculate_control(void) return control; } +static bool os_control_query_checks(struct acpi_pci_root *root, u32 support) +{ + struct acpi_device *device = root->device; + + if (pcie_ports_disabled) { + dev_info(&device->dev, "PCIe port services disabled; not requesting _OSC control\n"); + return false; + } + + if ((support & ACPI_PCIE_REQ_SUPPORT) != ACPI_PCIE_REQ_SUPPORT) { + decode_osc_support(root, "not requesting OS control; OS requires", + ACPI_PCIE_REQ_SUPPORT); + return false; + } + + return true; +} + static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm, bool is_pcie) { @@ -485,16 +503,8 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm, return; } - if (pcie_ports_disabled) { - dev_info(&device->dev, "PCIe port services disabled; not requesting _OSC control\n"); + if (!os_control_query_checks(root, support)) return; - } - - if ((support & ACPI_PCIE_REQ_SUPPORT) != ACPI_PCIE_REQ_SUPPORT) { - decode_osc_support(root, "not requesting OS control; OS requires", - ACPI_PCIE_REQ_SUPPORT); - return; - } requested = control = calculate_control(); |