[Qemu-devel] [PULL 02/28] hw/ide/ahci: Add a Kconfig switch for the AHCI-ICH9 device

[Thomas Huth <thuth@redhat.com>]

Some of our machines (like the ARM cubieboard) use CONFIG_AHCI for an AHCI
sysbus device, but do not use CONFIG_PCI since they do not feature a PCI
bus. With CONFIG_AHCI but without CONFIG_PCI, currently linking fails:

    ../hw/ide/ich.o: In function `pci_ich9_ahci_realize':
    hw/ide/ich.c:124: undefined reference to `pci_allocate_irq'
    hw/ide/ich.c:126: undefined reference to `pci_register_bar'
    hw/ide/ich.c:128: undefined reference to `pci_register_bar'
    hw/ide/ich.c:131: undefined reference to `pci_add_capability'
    hw/ide/ich.c:147: undefined reference to `msi_init'
    ../hw/ide/ich.o: In function `pci_ich9_uninit':
    hw/ide/ich.c:158: undefined reference to `msi_uninit'
    ../hw/ide/ich.o:(.data.rel+0x50): undefined reference to `vmstate_pci_device'

We must only compile ich.c if CONFIG_PCI is available, too, so introduce a
new config switch for this device.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: John Snow <jsnow@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 hw/ide/Kconfig       | 6 +++++-
 hw/ide/Makefile.objs | 2 +-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/hw/ide/Kconfig b/hw/ide/Kconfig
index ab47b6a7a3..5d9106b1ac 100644
--- a/hw/ide/Kconfig
+++ b/hw/ide/Kconfig
@@ -43,10 +43,14 @@ config MICRODRIVE
     select IDE_QDEV
 
 config AHCI
+    bool
+    select IDE_QDEV
+
+config AHCI_ICH9
     bool
     default y if PCI_DEVICES
     depends on PCI
-    select IDE_QDEV
+    select AHCI
 
 config IDE_SII3112
     bool
diff --git a/hw/ide/Makefile.objs b/hw/ide/Makefile.objs
index a142add90e..faf04e0209 100644
--- a/hw/ide/Makefile.objs
+++ b/hw/ide/Makefile.objs
@@ -9,6 +9,6 @@ common-obj-$(CONFIG_IDE_MMIO) += mmio.o
 common-obj-$(CONFIG_IDE_VIA) += via.o
 common-obj-$(CONFIG_MICRODRIVE) += microdrive.o
 common-obj-$(CONFIG_AHCI) += ahci.o
-common-obj-$(CONFIG_AHCI) += ich.o
+common-obj-$(CONFIG_AHCI_ICH9) += ich.o
 common-obj-$(CONFIG_ALLWINNER_A10) += ahci-allwinner.o
 common-obj-$(CONFIG_IDE_SII3112) += sii3112.o
-- 
2.21.0