linux/drivers/android/Kconfig
Tiffany Yang f6544dcdd0 binder: Convert binder_alloc selftests to KUnit
Convert the existing binder_alloc_selftest tests into KUnit tests. These
tests allocate and free an exhaustive combination of buffers with
various sizes and alignments. This change allows them to be run without
blocking or otherwise interfering with other processes in binder.

This test is refactored into more meaningful cases in the subsequent
patch.

Signed-off-by: Tiffany Yang <ynaffit@google.com>
Acked-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20250714185321.2417234-6-ynaffit@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-16 14:11:59 +02:00

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# SPDX-License-Identifier: GPL-2.0
menu "Android"
config ANDROID_BINDER_IPC
bool "Android Binder IPC Driver"
depends on MMU
default n
help
Binder is used in Android for both communication between processes,
and remote method invocation.
This means one Android process can call a method/routine in another
Android process, using Binder to identify, invoke and pass arguments
between said processes.
config ANDROID_BINDERFS
bool "Android Binderfs filesystem"
depends on ANDROID_BINDER_IPC
default n
help
Binderfs is a pseudo-filesystem for the Android Binder IPC driver
which can be mounted per-ipc namespace allowing to run multiple
instances of Android.
Each binderfs mount initially only contains a binder-control device.
It can be used to dynamically allocate new binder IPC devices via
ioctls.
config ANDROID_BINDER_DEVICES
string "Android Binder devices"
depends on ANDROID_BINDER_IPC
default "binder,hwbinder,vndbinder"
help
Default value for the binder.devices parameter.
The binder.devices parameter is a comma-separated list of strings
that specifies the names of the binder device nodes that will be
created. Each binder device has its own context manager, and is
therefore logically separated from the other devices.
config ANDROID_BINDER_ALLOC_KUNIT_TEST
tristate "KUnit Tests for Android Binder Alloc" if !KUNIT_ALL_TESTS
depends on ANDROID_BINDER_IPC && KUNIT
default KUNIT_ALL_TESTS
help
This feature builds the binder alloc KUnit tests.
Each test case runs using a pared-down binder_alloc struct and
test-specific freelist, which allows this KUnit module to be loaded
for testing without interfering with a running system.
endmenu