arm64: support keyctl() system call in 32-bit mode

[ Upstream commit 5c2a625937ba49bc691089370638223d310cda9a ]

As is the case for a number of other architectures that have a 32-bit
compat mode, enable KEYS_COMPAT if both COMPAT and KEYS are enabled.
This allows AArch32 programs to use the keyctl() system call when
running on an AArch64 kernel.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 00c4917..f18b8c2 100644 (file)
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -818,6 +818,10 @@ config SYSVIPC_COMPAT
        def_bool y
        depends on COMPAT && SYSVIPC
 
+config KEYS_COMPAT
+       def_bool y
+       depends on COMPAT && KEYS
+
 endmenu
 
 menu "Power management options"