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-rw-r--r--arch/s390/include/asm/system.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index afb849e..d73cc6b 100644
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -212,8 +212,10 @@ __set_psw_mask(unsigned long mask)
__load_psw_mask(mask | (arch_local_save_flags() & ~(-1UL >> 8)));
}
-#define local_mcck_enable() __set_psw_mask(psw_kernel_bits)
-#define local_mcck_disable() __set_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK)
+#define local_mcck_enable() \
+ __set_psw_mask(psw_kernel_bits | PSW_MASK_DAT | PSW_MASK_MCHECK)
+#define local_mcck_disable() \
+ __set_psw_mask(psw_kernel_bits | PSW_MASK_DAT)
#ifdef CONFIG_SMP
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