ARC: Add implicit compiler barrier to raw_local_irq* functions

[firefly-linux-kernel-4.4.55.git] / arch / arc / include / asm / irqflags.h

diff --git a/arch/arc/include/asm/irqflags.h b/arch/arc/include/asm/irqflags.h
index ccd84806b62fe9635472e6bbc00e0dc5643683ff..eac071668201a143bf0e93367cd277441b520fb8 100644 (file)
--- a/arch/arc/include/asm/irqflags.h
+++ b/arch/arc/include/asm/irqflags.h
@@ -39,7 +39,7 @@ static inline long arch_local_irq_save(void)
        "       flag.nz %0              \n"
        : "=r"(temp), "=r"(flags)
        : "n"((STATUS_E1_MASK | STATUS_E2_MASK))
-       : "cc");
+       : "memory", "cc");
 
        return flags;
 }
@@ -53,7 +53,8 @@ static inline void arch_local_irq_restore(unsigned long flags)
        __asm__ __volatile__(
        "       flag %0                 \n"
        :
-       : "r"(flags));
+       : "r"(flags)
+       : "memory");
 }
 
 /*
@@ -73,7 +74,8 @@ static inline void arch_local_irq_disable(void)
        "       and %0, %0, %1          \n"
        "       flag %0                 \n"
        : "=&r"(temp)
-       : "n"(~(STATUS_E1_MASK | STATUS_E2_MASK)));
+       : "n"(~(STATUS_E1_MASK | STATUS_E2_MASK))
+       : "memory");
 }
 
 /*
@@ -85,7 +87,9 @@ static inline long arch_local_save_flags(void)
 
        __asm__ __volatile__(
        "       lr  %0, [status32]      \n"
-       : "=&r"(temp));
+       : "=&r"(temp)
+       :
+       : "memory");
 
        return temp;
 }