[PATCH v4 01/29] powerpc/mm: add ARCH_PKEY_BITS to Kconfig

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The new config option specifies how many bits are in each PKEY.

Signed-off-by: Joey Gouly <joey.gouly@xxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Nicholas Piggin <npiggin@xxxxxxxxx>
Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxx>
Cc: "Naveen N. Rao" <naveen.n.rao@xxxxxxxxxxxxx>
Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
---
 arch/powerpc/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 1c4be3373686..6e33e4726856 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -1020,6 +1020,10 @@ config PPC_MEM_KEYS
 
 	  If unsure, say y.
 
+config ARCH_PKEY_BITS
+	int
+	default 5
+
 config PPC_SECURE_BOOT
 	prompt "Enable secure boot support"
 	bool
-- 
2.25.1





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