54 lines
1.8 KiB
Diff
54 lines
1.8 KiB
Diff
From: Ben Hutchings <ben@decadent.org.uk>
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Date: Tue, 08 Jul 2025 13:30:55 +0200
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Subject: android: Enable building binder as module
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Bug-Debian: https://bugs.debian.org/901492
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We want to enable use of the Android binder driver to support
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Waydroid, but it should not be built-in as that would waste resources
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and increase security attack surface on systems that don't need it.
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- Change the Makefiles to build the driver as an object with the
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"_linux" suffix (which is what Waydroid expects)
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- Change config symbol types to tristate
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---
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drivers/android/Kconfig | 2 +-
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drivers/android/Makefile | 7 ++++---
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drivers/android/binder_alloc.c | 2 +-
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3 files changed, 6 insertions(+), 5 deletions(-)
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--- a/drivers/android/Kconfig
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+++ b/drivers/android/Kconfig
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@@ -2,7 +2,7 @@
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menu "Android"
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config ANDROID_BINDER_IPC
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- bool "Android Binder IPC Driver"
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+ tristate "Android Binder IPC Driver"
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depends on MMU
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default n
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help
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--- a/drivers/android/Makefile
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+++ b/drivers/android/Makefile
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@@ -1,6 +1,7 @@
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# SPDX-License-Identifier: GPL-2.0-only
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ccflags-y += -I$(src) # needed for trace events
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-obj-$(CONFIG_ANDROID_BINDERFS) += binderfs.o
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-obj-$(CONFIG_ANDROID_BINDER_IPC) += binder.o binder_alloc.o
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-obj-$(CONFIG_ANDROID_BINDER_IPC_SELFTEST) += binder_alloc_selftest.o
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+obj-$(CONFIG_ANDROID_BINDER_IPC) += binder_linux.o
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+binder_linux-y := binder.o binder_alloc.o
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+binder_linux-$(CONFIG_ANDROID_BINDERFS) += binderfs.o
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+binder_linux-$(CONFIG_ANDROID_BINDER_IPC_SELFTEST) += binder_alloc_selftest.o
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--- a/drivers/android/binder_alloc.c
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+++ b/drivers/android/binder_alloc.c
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@@ -38,7 +38,7 @@ enum {
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};
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static uint32_t binder_alloc_debug_mask = BINDER_DEBUG_USER_ERROR;
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-module_param_named(debug_mask, binder_alloc_debug_mask,
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+module_param_named(alloc_debug_mask, binder_alloc_debug_mask,
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uint, 0644);
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#define binder_alloc_debug(mask, x...) \
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