From: Mika Westerberg Date: Wed, 23 May 2018 22:19:22 +0000 (-0500) Subject: PCI: pciehp: Request control of native hotplug only if supported X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=408fec36a1ab3d14273c2116b449ef1e9be3cb8b;p=linux.git PCI: pciehp: Request control of native hotplug only if supported Currently we request control of native PCIe hotplug unconditionally. Native PCIe hotplug events are handled by the pciehp driver, and if it is not enabled those events will be lost. Request control of native PCIe hotplug only if the pciehp driver is enabled, so we will actually handle native PCIe hotplug events. Suggested-by: Bjorn Helgaas Signed-off-by: Mika Westerberg Signed-off-by: Bjorn Helgaas Reviewed-by: Rafael J. Wysocki --- diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 0da18bde6a165..dd946b62feddc 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -472,9 +472,11 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm) } control = OSC_PCI_EXPRESS_CAPABILITY_CONTROL - | OSC_PCI_EXPRESS_NATIVE_HP_CONTROL | OSC_PCI_EXPRESS_PME_CONTROL; + if (IS_ENABLED(CONFIG_HOTPLUG_PCI_PCIE)) + control |= OSC_PCI_EXPRESS_NATIVE_HP_CONTROL; + if (pci_aer_available()) { if (aer_acpi_firmware_first()) dev_info(&device->dev,