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security/keys: add CONFIG_KEYS_COMPAT to Kconfig

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CONFIG_KEYS_COMPAT is defined in arch-specific Kconfigs and is missing for
several 64-bit architectures : 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.

[DH: Modified to remove arm64 compat enablement also as requested by Eric
 Biggers]

Signed-off-by: Bilal Amarni <[email protected]>
Signed-off-by: David Howells <[email protected]>
Reviewed-by: Arnd Bergmann <[email protected]>
cc: Eric Biggers <[email protected]>
Signed-off-by: James Morris <[email protected]>
This commit is contained in:
Bilal Amarni 2017-06-08 14:47:26 +01:00 • committed by James Morris
commit 47b2c3fff4
6 changed files with 4 additions and 19 deletions
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5
arch/powerpc/Kconfig
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@ -1215,11 +1215,6 @@ 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