PKEY_REG_BITS      30 arch/powerpc/mm/book3s64/pkeys.c #define PKEY_REG_BITS (sizeof(u64)*8)
PKEY_REG_BITS      37 tools/testing/selftests/powerpc/ptrace/core-pkey.c #define PKEY_REG_BITS (sizeof(u64) * 8)
PKEY_REG_BITS      28 tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c #define PKEY_REG_BITS (sizeof(u64) * 8)