patch-2.1.80 linux/include/asm-i386/hardirq.h

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diff -u --recursive --new-file v2.1.79/linux/include/asm-i386/hardirq.h linux/include/asm-i386/hardirq.h
@@ -15,6 +15,7 @@
 #define hardirq_exit(cpu)	(local_irq_count[cpu]--)
 
 #define synchronize_irq()	do { } while (0)
+#define synchronize_one_irq(x)	do { } while (0)
 
 #else
 
@@ -69,6 +70,7 @@
 }
 
 extern void synchronize_irq(void);
+extern void synchronize_one_irq(unsigned int irq);
 
 #endif /* __SMP__ */
 

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