提交 fe6a2804 编写于 作者: R Ram Pai 提交者: 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: NRam Pai <linuxram@us.ibm.com>
Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
上级 c76662e8
......@@ -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);
......
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