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Date: Wed, 29 Jun 2022 17:01:02 +0200
From: Christoph Hellwig <hch@....de>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Arve Hjønnevåg <arve@...roid.com>,
Todd Kjos <tkjos@...roid.com>,
Martijn Coenen <maco@...roid.com>,
Joel Fernandes <joel@...lfernandes.org>,
Christian Brauner <brauner@...nel.org>,
Hridya Valsaraju <hridya@...gle.com>,
Suren Baghdasaryan <surenb@...gle.com>,
"Theodore Ts'o" <tytso@....edu>,
"Jason A. Donenfeld" <Jason@...c4.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
"Alex Xu (Hello71)" <alex_y_xu@...oo.ca>,
Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh@...nel.org>,
"Paul E. McKenney" <paulmck@...nel.org>,
Frederic Weisbecker <frederic@...nel.org>,
Neeraj Upadhyay <quic_neeraju@...cinc.com>,
Josh Triplett <josh@...htriplett.org>,
Steven Rostedt <rostedt@...dmis.org>,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
Lai Jiangshan <jiangshanlai@...il.com>,
Shuah Khan <shuah@...nel.org>, linux-kernel@...r.kernel.org,
wireguard@...ts.zx2c4.com, netdev@...r.kernel.org,
rcu@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: [PATCH] remove CONFIG_ANDROID
The ANDROID config symbol is only used to guard the binder config
symbol and to inject completely random config changes. Remove it
as it is obviously a bad idea.
Signed-off-by: Christoph Hellwig <hch@....de>
---
drivers/Makefile | 2 +-
drivers/android/Kconfig | 9 ---------
drivers/char/random.c | 3 +--
drivers/net/wireguard/device.c | 2 +-
kernel/configs/android-base.config | 1 -
kernel/rcu/Kconfig.debug | 3 +--
tools/testing/selftests/filesystems/binderfs/config | 1 -
tools/testing/selftests/sync/config | 1 -
8 files changed, 4 insertions(+), 18 deletions(-)
diff --git a/drivers/Makefile b/drivers/Makefile
index 9a30842b22c54..123dce2867583 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -176,7 +176,7 @@ obj-$(CONFIG_USB4) += thunderbolt/
obj-$(CONFIG_CORESIGHT) += hwtracing/coresight/
obj-y += hwtracing/intel_th/
obj-$(CONFIG_STM) += hwtracing/stm/
-obj-$(CONFIG_ANDROID) += android/
+obj-y += android/
obj-$(CONFIG_NVMEM) += nvmem/
obj-$(CONFIG_FPGA) += fpga/
obj-$(CONFIG_FSI) += fsi/
diff --git a/drivers/android/Kconfig b/drivers/android/Kconfig
index 53b22e26266c3..07aa8ae0a058c 100644
--- a/drivers/android/Kconfig
+++ b/drivers/android/Kconfig
@@ -1,13 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
menu "Android"
-config ANDROID
- bool "Android Drivers"
- help
- Enable support for various drivers needed on the Android platform
-
-if ANDROID
-
config ANDROID_BINDER_IPC
bool "Android Binder IPC Driver"
depends on MMU
@@ -54,6 +47,4 @@ config ANDROID_BINDER_IPC_SELFTEST
exhaustively with combinations of various buffer sizes and
alignments.
-endif # if ANDROID
-
endmenu
diff --git a/drivers/char/random.c b/drivers/char/random.c
index e3dd1dd3dd226..f35ad1a9dff3e 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -755,8 +755,7 @@ static int random_pm_notification(struct notifier_block *nb, unsigned long actio
spin_unlock_irqrestore(&input_pool.lock, flags);
if (crng_ready() && (action == PM_RESTORE_PREPARE ||
- (action == PM_POST_SUSPEND &&
- !IS_ENABLED(CONFIG_PM_AUTOSLEEP) && !IS_ENABLED(CONFIG_ANDROID)))) {
+ (action == PM_POST_SUSPEND && !IS_ENABLED(CONFIG_PM_AUTOSLEEP)))) {
crng_reseed();
pr_notice("crng reseeded on system resumption\n");
}
diff --git a/drivers/net/wireguard/device.c b/drivers/net/wireguard/device.c
index aa9a7a5970fda..de1cc03f7ee86 100644
--- a/drivers/net/wireguard/device.c
+++ b/drivers/net/wireguard/device.c
@@ -69,7 +69,7 @@ static int wg_pm_notification(struct notifier_block *nb, unsigned long action, v
* its normal operation rather than as a somewhat rare event, then we
* don't actually want to clear keys.
*/
- if (IS_ENABLED(CONFIG_PM_AUTOSLEEP) || IS_ENABLED(CONFIG_ANDROID))
+ if (IS_ENABLED(CONFIG_PM_AUTOSLEEP))
return 0;
if (action != PM_HIBERNATION_PREPARE && action != PM_SUSPEND_PREPARE)
diff --git a/kernel/configs/android-base.config b/kernel/configs/android-base.config
index eb701b2ac72ff..44b0f0146a3fc 100644
--- a/kernel/configs/android-base.config
+++ b/kernel/configs/android-base.config
@@ -7,7 +7,6 @@
# CONFIG_OABI_COMPAT is not set
# CONFIG_SYSVIPC is not set
# CONFIG_USELIB is not set
-CONFIG_ANDROID=y
CONFIG_ANDROID_BINDER_IPC=y
CONFIG_ANDROID_BINDER_DEVICES=binder,hwbinder,vndbinder
CONFIG_ANDROID_LOW_MEMORY_KILLER=y
diff --git a/kernel/rcu/Kconfig.debug b/kernel/rcu/Kconfig.debug
index 9b64e55d4f615..e875f4f889656 100644
--- a/kernel/rcu/Kconfig.debug
+++ b/kernel/rcu/Kconfig.debug
@@ -86,8 +86,7 @@ config RCU_EXP_CPU_STALL_TIMEOUT
int "Expedited RCU CPU stall timeout in milliseconds"
depends on RCU_STALL_COMMON
range 0 21000
- default 20 if ANDROID
- default 0 if !ANDROID
+ default 0
help
If a given expedited RCU grace period extends more than the
specified number of milliseconds, a CPU stall warning is printed.
diff --git a/tools/testing/selftests/filesystems/binderfs/config b/tools/testing/selftests/filesystems/binderfs/config
index 02dd6cc9cf992..7b4fc6ee62057 100644
--- a/tools/testing/selftests/filesystems/binderfs/config
+++ b/tools/testing/selftests/filesystems/binderfs/config
@@ -1,3 +1,2 @@
-CONFIG_ANDROID=y
CONFIG_ANDROID_BINDERFS=y
CONFIG_ANDROID_BINDER_IPC=y
diff --git a/tools/testing/selftests/sync/config b/tools/testing/selftests/sync/config
index 47ff5afc37271..64c60f38b4464 100644
--- a/tools/testing/selftests/sync/config
+++ b/tools/testing/selftests/sync/config
@@ -1,3 +1,2 @@
CONFIG_STAGING=y
-CONFIG_ANDROID=y
CONFIG_SW_SYNC=y
--
2.30.2
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