Now that we allow CONFIG_PCI to be unset, remove useless code from ACPICA
too.

Signed-off-by: Sinan Kaya <ok...@kernel.org>
---
 drivers/acpi/acpica/Makefile    | 2 +-
 drivers/acpi/acpica/achware.h   | 9 +++++++++
 include/acpi/platform/aclinux.h | 4 ++++
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index b14621da5413..59700433a96e 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -77,13 +77,13 @@ acpi-y +=           \
        hwacpi.o        \
        hwesleep.o      \
        hwgpe.o         \
-       hwpci.o         \
        hwregs.o        \
        hwsleep.o       \
        hwvalid.o       \
        hwxface.o       \
        hwxfsleep.o
 
+acpi-$(CONFIG_PCI) += hwpci.o
 acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o
 
 acpi-y +=              \
diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h
index 43ce67a9da1f..ef99e2fc37f8 100644
--- a/drivers/acpi/acpica/achware.h
+++ b/drivers/acpi/acpica/achware.h
@@ -106,11 +106,20 @@ acpi_hw_enable_runtime_gpe_block(struct 
acpi_gpe_xrupt_info *gpe_xrupt_info,
                                 struct acpi_gpe_block_info *gpe_block,
                                 void *context);
 
+#ifdef ACPI_PCI_CONFIGURED
 /*
  * hwpci - PCI configuration support
  */
 acpi_status
 acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id,
                      acpi_handle root_pci_device, acpi_handle pci_region);
+#else
+static inline acpi_status
+acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id, acpi_handle root_pci_device,
+                     acpi_handle pci_region)
+{
+       return AE_SUPPORT;
+}
+#endif
 
 #endif                         /* __ACHWARE_H__ */
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 7451b3bca83a..e3d21d014fcc 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -33,6 +33,10 @@
 
 /* Kernel specific ACPICA configuration */
 
+#ifdef CONFIG_PCI
+#define ACPI_PCI_CONFIGURED
+#endif
+
 #ifdef CONFIG_ACPI_REDUCED_HARDWARE_ONLY
 #define ACPI_REDUCED_HARDWARE 1
 #endif
-- 
2.19.0

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