From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sinan Kaya Subject: [PATCH v3 1/3] ACPI: Allow PCI to be disabled for reboot Date: Mon, 10 Dec 2018 18:13:13 +0000 Message-ID: <20181210181315.5023-1-okaya@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: Sender: linux-kernel-owner@vger.kernel.org To: linux-acpi@vger.kernel.org Cc: Sinan Kaya , "Rafael J. Wysocki" , Len Brown , open list List-Id: linux-acpi@vger.kernel.org Make PCI reboot conditional on PCI support being present on the kernel configuration. Signed-off-by: Sinan Kaya --- drivers/acpi/reboot.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c index 6fa9c2a4cfe9..9aa367f098a6 100644 --- a/drivers/acpi/reboot.c +++ b/drivers/acpi/reboot.c @@ -7,8 +7,6 @@ void acpi_reboot(void) { struct acpi_generic_address *rr; - struct pci_bus *bus0; - unsigned int devfn; u8 reset_value; if (acpi_disabled) @@ -33,6 +31,11 @@ void acpi_reboot(void) * on a device on bus 0. */ switch (rr->space_id) { case ACPI_ADR_SPACE_PCI_CONFIG: + { +#ifdef CONFIG_PCI + unsigned int devfn; + struct pci_bus *bus0; + /* The reset register can only live on bus 0. */ bus0 = pci_find_bus(0, 0); if (!bus0) @@ -45,7 +48,10 @@ void acpi_reboot(void) pci_bus_write_config_byte(bus0, devfn, (rr->address & 0xffff), reset_value); break; - +#else + return; +#endif + } case ACPI_ADR_SPACE_SYSTEM_MEMORY: case ACPI_ADR_SPACE_SYSTEM_IO: printk(KERN_DEBUG "ACPI MEMORY or I/O RESET_REG.\n"); -- 2.19.0