Add installable to prebuilt_kernel_modules

Some kernel prebuilt modules are only meant to be included in
android_filesystem module, not to be installed to the device. To support
such use case, adding installable property.

Bug: 305118971
Test: build
Change-Id: Ie945fe1f8a20a2a1fea9a44bc36f94dc73fa2a40

1 files changed, 10 insertions, 0 deletions

diff --git a/kernel/prebuilt_kernel_modules.go b/kernel/prebuilt_kernel_modules.go
index 5bcca047e..e200ee2c1 100644
--- a/kernel/prebuilt_kernel_modules.go
+++ b/kernel/prebuilt_kernel_modules.go
@@ -50,6 +50,9 @@ type prebuiltKernelModulesProperties struct {
 	// Kernel version that these modules are for. Kernel modules are installed to
 	// /lib/modules/<kernel_version> directory in the corresponding partition. Default is "".
 	Kernel_version *string
+
+	// Whether this module is directly installable to one of the partitions. Default is true
+	Installable *bool
 }
 
 // prebuilt_kernel_modules installs a set of prebuilt kernel module files to the correct directory.
@@ -62,6 +65,10 @@ func prebuiltKernelModulesFactory() android.Module {
 	return module
 }
 
+func (pkm *prebuiltKernelModules) installable() bool {
+	return proptools.BoolDefault(pkm.properties.Installable, true)
+}
+
 func (pkm *prebuiltKernelModules) KernelVersion() string {
 	return proptools.StringDefault(pkm.properties.Kernel_version, "")
 }
@@ -71,6 +78,9 @@ func (pkm *prebuiltKernelModules) DepsMutator(ctx android.BottomUpMutatorContext
 }
 
 func (pkm *prebuiltKernelModules) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	if !pkm.installable() {
+		pkm.SkipInstall()
+	}
 	modules := android.PathsForModuleSrc(ctx, pkm.properties.Srcs)
 
 	depmodOut := runDepmod(ctx, modules)