[Qemu-devel] [PATCH 40/52] scsi: express dependencies with Kconfig

[Paolo Bonzini]

This automatically removes the SCSI subsystem from the
binary altogether if no controllers are selected.

Signed-off-by: Paolo Bonzini <address@hidden>
Signed-off-by: Yang Zhong <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
 hw/scsi/Kconfig       | 11 ++++++++++-
 hw/scsi/Makefile.objs |  2 +-
 hw/usb/Kconfig        |  2 ++
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/hw/scsi/Kconfig b/hw/scsi/Kconfig
index c02d880..b9cf269 100644
--- a/hw/scsi/Kconfig
+++ b/hw/scsi/Kconfig
@@ -5,24 +5,29 @@ config LSI_SCSI_PCI
     bool
     default y if PCI_DEVICES
     depends on PCI
+    select SCSI
 
 config MPTSAS_SCSI_PCI
     bool
     default y if PCI_DEVICES
     depends on PCI
+    select SCSI
 
 config MEGASAS_SCSI_PCI
     bool
     default y if PCI_DEVICES
     depends on PCI
+    select SCSI
 
 config VMW_PVSCSI_SCSI_PCI
     bool
     default y if PCI_DEVICES
     depends on PCI
+    select SCSI
 
 config ESP
     bool
+    select SCSI
 
 config ESP_PCI
     bool
@@ -34,10 +39,14 @@ config SPAPR_VSCSI
     bool
     default y
     depends on PSERIES
+    select SCSI
 
 config VIRTIO_SCSI
     bool
+    select SCSI
 
 config VHOST_USER_SCSI
     bool
-    default y if VHOST_USER && LINUX
+    # Only PCI devices are provided for now
+    default y if VIRTIO_PCI
+    depends on VHOST_USER && LINUX
diff --git a/hw/scsi/Makefile.objs b/hw/scsi/Makefile.objs
index 45167ba..54b36ed 100644
--- a/hw/scsi/Makefile.objs
+++ b/hw/scsi/Makefile.objs
@@ -6,7 +6,7 @@ common-obj-$(CONFIG_MEGASAS_SCSI_PCI) += megasas.o
 common-obj-$(CONFIG_VMW_PVSCSI_SCSI_PCI) += vmw_pvscsi.o
 common-obj-$(CONFIG_ESP) += esp.o
 common-obj-$(CONFIG_ESP_PCI) += esp-pci.o
-obj-$(CONFIG_PSERIES) += spapr_vscsi.o
+obj-$(CONFIG_SPAPR_VSCSI) += spapr_vscsi.o
 
 ifeq ($(CONFIG_VIRTIO_SCSI),y)
 obj-y += virtio-scsi.o virtio-scsi-dataplane.o
diff --git a/hw/usb/Kconfig b/hw/usb/Kconfig
index e20670a..a1b7acb 100644
--- a/hw/usb/Kconfig
+++ b/hw/usb/Kconfig
@@ -52,11 +52,13 @@ config USB_STORAGE_BOT
     bool
     default y
     depends on USB
+    select SCSI
 
 config USB_STORAGE_UAS
     bool
     default y
     depends on USB
+    select SCSI
 
 config USB_AUDIO
     bool
-- 
1.8.3.1