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Subject[PATCH] powerpc/trace: Restrict hash_fault trace event to HASH MMU
Date
'perf list' on powerpc 8xx shows an event named "1:hash_fault".

This event is pointless because trace_hash_fault() is called only
from mm/book3s64/hash_utils.c

Only define it when CONFIG_PPC_64S_HASH_MMU is selected.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
arch/powerpc/include/asm/trace.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/trace.h b/arch/powerpc/include/asm/trace.h
index 82cc2c6704e6..d9ac3a4f46e1 100644
--- a/arch/powerpc/include/asm/trace.h
+++ b/arch/powerpc/include/asm/trace.h
@@ -267,6 +267,7 @@ TRACE_EVENT_FN(opal_exit,
);
#endif

+#ifdef CONFIG_PPC_64S_HASH_MMU
TRACE_EVENT(hash_fault,

TP_PROTO(unsigned long addr, unsigned long access, unsigned long trap),
@@ -286,7 +287,7 @@ TRACE_EVENT(hash_fault,
TP_printk("hash fault with addr 0x%lx and access = 0x%lx trap = 0x%lx",
__entry->addr, __entry->access, __entry->trap)
);
-
+#endif

TRACE_EVENT(tlbie,

--
2.43.0

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