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Commit fe6a2804 authored by Ram Pai's avatar Ram Pai Committed by Michael Ellerman
Browse files

powerpc/pkeys: Fix calculation of total pkeys. 



Total number of pkeys calculation is off by 1. Fix it.

Fixes: 4fb158f6 ("powerpc: track allocation status of all pkeys")
Cc: stable@vger.kernel.org # v4.16+
Signed-off-by: default avatarRam Pai <linuxram@us.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent c76662e8

arch/powerpc/mm/pkeys.c

+1 −1
Original line number Diff line number Diff line
@@ -92,7 +92,7 @@ int pkey_initialize(void) 
	 * arch-neutral code.

	 */

	pkeys_total = min_t(int, pkeys_total,

			(ARCH_VM_PKEY_FLAGS >> VM_PKEY_SHIFT));

			((ARCH_VM_PKEY_FLAGS >> VM_PKEY_SHIFT)+1));



	if (!pkey_mmu_enabled() || radix_enabled() || !pkeys_total)

		static_branch_enable(&pkey_disabled);