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[Qemu-devel] [PULL 09/36] 9p: simplify source file selection


From: Paolo Bonzini
Subject: [Qemu-devel] [PULL 09/36] 9p: simplify source file selection
Date: Tue, 20 Aug 2019 08:59:28 +0200

Express the complex conditions in Kconfig rather than Makefiles, since Kconfig
is better suited at expressing dependencies and detecting contradictions.

Cc: Marc-André Lureau <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
 Kconfig.host        | 1 +
 fsdev/Makefile.objs | 2 +-
 hw/9pfs/Kconfig     | 5 +++++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/Kconfig.host b/Kconfig.host
index aec9536..bb6e116 100644
--- a/Kconfig.host
+++ b/Kconfig.host
@@ -28,6 +28,7 @@ config VHOST_USER
 
 config XEN
     bool
+    select FSDEV_9P if VIRTFS
 
 config VIRTFS
     bool
diff --git a/fsdev/Makefile.objs b/fsdev/Makefile.objs
index 24bbb3e..42cd70c 100644
--- a/fsdev/Makefile.objs
+++ b/fsdev/Makefile.objs
@@ -1,6 +1,6 @@
 # Lots of the fsdev/9pcode is pulled in by vl.c via qemu_fsdev_add.
 # only pull in the actual 9p backend if we also enabled virtio or xen.
-ifeq ($(call land,$(CONFIG_VIRTFS),$(call 
lor,$(CONFIG_VIRTIO_9P),$(CONFIG_XEN))),y)
+ifeq ($(CONFIG_FSDEV_9P),y)
 common-obj-y = qemu-fsdev.o 9p-marshal.o 9p-iov-marshal.o
 else
 common-obj-y = qemu-fsdev-dummy.o
diff --git a/hw/9pfs/Kconfig b/hw/9pfs/Kconfig
index 8c5032c..3ae5749 100644
--- a/hw/9pfs/Kconfig
+++ b/hw/9pfs/Kconfig
@@ -1,4 +1,9 @@
+config FSDEV_9P
+    bool
+    depends on VIRTFS
+
 config VIRTIO_9P
     bool
     default y
     depends on VIRTFS && VIRTIO
+    select FSDEV_9P
-- 
1.8.3.1





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