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

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
...@@ -92,7 +92,7 @@ int pkey_initialize(void) ...@@ -92,7 +92,7 @@ int pkey_initialize(void)
* arch-neutral code. * arch-neutral code.
*/ */
pkeys_total = min_t(int, pkeys_total, 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) if (!pkey_mmu_enabled() || radix_enabled() || !pkeys_total)
static_branch_enable(&pkey_disabled); static_branch_enable(&pkey_disabled);
......
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