[PATCH v10 1/6] ACPI: Allow CONFIG_PCI to be unset for reboot

[Sinan Kaya]

Make PCI reboot conditional on PCI support being present on the kernel
configuration.

Signed-off-by: Sinan Kaya <ok...@kernel.org>
---
 drivers/acpi/reboot.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c
index 6fa9c2a4cfe9..d75e637ee36a 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)
@@ -44,8 +47,9 @@ void acpi_reboot(void)
                /* Write the value that resets us. */
                pci_bus_write_config_byte(bus0, devfn,
                                (rr->address & 0xffff), reset_value);
+#endif
                break;
-
+       }
        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