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Subject[PATCH] security/keys: add CONFIG_KEYS_COMPAT to Kconfig
Date
CONFIG_KEYS_COMPAT is defined in arch-specific Kconfigs and is missing for
several 64-bit architectures : arm64, mips, parisc, tile.

At the moment and for those architectures, calling in 32-bit userspace the
keyctl syscall would return an ENOSYS error.

This patch moves the CONFIG_KEYS_COMPAT option to security/keys/Kconfig, to
make sure the compatibility wrapper is registered by default for any 64-bit
architecture as long as it is configured with CONFIG_COMPAT.

Signed-off-by: Bilal Amarni <bilal.amarni@gmail.com>
---
arch/powerpc/Kconfig | 5 -----
arch/s390/Kconfig | 3 ---
arch/sparc/Kconfig | 3 ---
arch/x86/Kconfig | 5 -----
security/keys/Kconfig | 4 ++++
5 files changed, 4 insertions(+), 16 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a8ee573..5947ea2 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -1128,11 +1128,6 @@ source "arch/powerpc/Kconfig.debug"

source "security/Kconfig"

-config KEYS_COMPAT
- bool
- depends on COMPAT && KEYS
- default y
-
source "crypto/Kconfig"

config PPC_LIB_RHEAP
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c6722112..633f553 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -362,9 +362,6 @@ config COMPAT
config SYSVIPC_COMPAT
def_bool y if COMPAT && SYSVIPC

-config KEYS_COMPAT
- def_bool y if COMPAT && KEYS
-
config SMP
def_bool y
prompt "Symmetric multi-processing support"
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index cf4034c..2b07f0a 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -571,9 +571,6 @@ config SYSVIPC_COMPAT
depends on COMPAT && SYSVIPC
default y

-config KEYS_COMPAT
- def_bool y if COMPAT && KEYS
-
endmenu

source "net/Kconfig"
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e487493..e92b62b 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2769,11 +2769,6 @@ config SYSVIPC_COMPAT
def_bool y
depends on SYSVIPC

-config KEYS_COMPAT
- def_bool y
- depends on KEYS
-endif
-
endmenu


diff --git a/security/keys/Kconfig b/security/keys/Kconfig
index d942c7c..f44d8be 100644
--- a/security/keys/Kconfig
+++ b/security/keys/Kconfig
@@ -20,6 +20,10 @@ config KEYS

If you are unsure as to whether this is required, answer N.

+config KEYS_COMPAT
+ def_bool y
+ depends on COMPAT && KEYS
+
config PERSISTENT_KEYRINGS
bool "Enable register of persistent per-UID keyrings"
depends on KEYS
--
2.7.2
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