qemu-xilinx-helper-native: Clean up preferred provider message

Due to this recipe being added there are two providers for
qemu-helper-native, but by default one is never selected. This generates
a message during the build that informs the user to select a provider.
This is unnecessary as the only machines that care about setting the
provider is currently zcu102-zynqmp due to its requirement for
qemu-xilinx all other qemu machines should be using the
qemu-helper-native recipe and non-qemu machines don't use the recipe.

To prevent the message, only make the qemu-xilinx-helper-native recipe
available when it is selected as the preferred provider otherwise skip
it.

Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Acked-by: Alistair Francis <alistair.francis@xilinx.com>

1 files changed, 9 insertions, 4 deletions

diff --git a/recipes-devtools/qemu/qemu-xilinx-helper-native_1.0.bb b/recipes-devtools/qemu/qemu-xilinx-helper-native_1.0.bb
index f04be960..f48a8d40 100644
--- a/recipes-devtools/qemu/qemu-xilinx-helper-native_1.0.bb
+++ b/recipes-devtools/qemu/qemu-xilinx-helper-native_1.0.bb
@@ -1,9 +1,14 @@
 
+python () {
+    if d.getVar("PREFERRED_PROVIDER_qemu-helper-native") != d.getVar("PN"):
+        raise bb.parse.SkipRecipe("Set qemu-helper-native provider to use this recipe")
+}
+
 def get_filespath_extra(d, subpath):
-        metaroot = next((p for p in d.getVar('BBPATH').split(':') if os.path.basename(p) == 'meta'), None)
-        if metaroot:
-                return os.path.join(metaroot, subpath) + ":"
-        return ""
+    metaroot = next((p for p in d.getVar('BBPATH').split(':') if os.path.basename(p) == 'meta'), None)
+    if metaroot:
+        return os.path.join(metaroot, subpath) + ":"
+    return ""
 
 # TODO: improve this, since it is very hacky that this recipe need to build tunctl.
 # include the existing qemu-helper-native