irq_entry, irq_exit, timer_interrupt_entry and timer_interrupt_exit
all do the same thing so use DECLARE_EVENT_CLASS to avoid duplicating
everything 4 times.
This saves quite a lot of space in both instruction text and data:
text data bss dec hex filename
9265 19622 16 28903 70e7 arch/powerpc/kernel/irq.o
6817 19019 16 25852 64fc arch/powerpc/kernel/irq.o
Signed-off-by: Anton Blanchard <an...@samba.org>
---
Index: linux-build/arch/powerpc/include/asm/trace.h
===================================================================
--- linux-build.orig/arch/powerpc/include/asm/trace.h 2012-05-23
13:30:51.235534219 +1000
+++ linux-build/arch/powerpc/include/asm/trace.h 2012-05-23
14:10:44.406639628 +1000
@@ -8,7 +8,7 @@
struct pt_regs;
-TRACE_EVENT(irq_entry,
+DECLARE_EVENT_CLASS(ppc64_interrupt_class,
TP_PROTO(struct pt_regs *regs),
@@ -25,55 +25,32 @@ TRACE_EVENT(irq_entry,
TP_printk("pt_regs=%p", __entry->regs)
);
-TRACE_EVENT(irq_exit,
+DEFINE_EVENT(ppc64_interrupt_class, irq_entry,
TP_PROTO(struct pt_regs *regs),
- TP_ARGS(regs),
-
- TP_STRUCT__entry(
- __field(struct pt_regs *, regs)
- ),
-
- TP_fast_assign(
- __entry->regs = regs;
- ),
-
- TP_printk("pt_regs=%p", __entry->regs)
+ TP_ARGS(regs)
);
-TRACE_EVENT(timer_interrupt_entry,
+DEFINE_EVENT(ppc64_interrupt_class, irq_exit,
TP_PROTO(struct pt_regs *regs),
- TP_ARGS(regs),
-
- TP_STRUCT__entry(
- __field(struct pt_regs *, regs)
- ),
-
- TP_fast_assign(
- __entry->regs = regs;
- ),
-
- TP_printk("pt_regs=%p", __entry->regs)
+ TP_ARGS(regs)
);
-TRACE_EVENT(timer_interrupt_exit,
+DEFINE_EVENT(ppc64_interrupt_class, timer_interrupt_entry,
TP_PROTO(struct pt_regs *regs),
- TP_ARGS(regs),
+ TP_ARGS(regs)
+);
- TP_STRUCT__entry(
- __field(struct pt_regs *, regs)
- ),
+DEFINE_EVENT(ppc64_interrupt_class, timer_interrupt_exit,
- TP_fast_assign(
- __entry->regs = regs;
- ),
+ TP_PROTO(struct pt_regs *regs),
- TP_printk("pt_regs=%p", __entry->regs)
+ TP_ARGS(regs)
);
#ifdef CONFIG_PPC_PSERIES
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