linux-kernel - [PATCH v7 3/7] perf: define EVENT_DEFINE_RANGE_FORMAT

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Message-Id: <1422322990-9030-4-git-send-email-sukadev@linux.vnet.ibm.com>
Date:	Mon, 26 Jan 2015 17:43:06 -0800
From:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
To:	Michael Ellerman <mpe@...erman.id.au>,
	Jiri Olsa <jolsa@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	dev@...yps.com, peterz@...radead.org, hbabu@...ibm.com,
	<linux-kernel@...r.kernel.org>, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v7 3/7] perf: define EVENT_DEFINE_RANGE_FORMAT_LITE helper

Define a lite version of the EVENT_DEFINE_RANGE_FORMAT() that avoids
defining helper functions for the bit-field ranges.

Signed-off-by: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
---
 arch/powerpc/perf/hv-common.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/powerpc/perf/hv-common.h b/arch/powerpc/perf/hv-common.h
index 5d79cec..349aaba 100644
--- a/arch/powerpc/perf/hv-common.h
+++ b/arch/powerpc/perf/hv-common.h
@@ -20,6 +20,16 @@ unsigned long hv_perf_caps_get(struct hv_perf_caps *caps);
 PMU_FORMAT_ATTR(name, #attr_var ":" #bit_start "-" #bit_end);		\
 EVENT_DEFINE_RANGE(name, attr_var, bit_start, bit_end)
 
+/*
+ * The EVENT_DEFINE_RANGE_FORMAT() macro above includes helper functions
+ * for the fields (eg: event_get_starting_index()). For some fields we
+ * need the bit-range definition, but no the helper functions. Define a
+ * lite version of the above macro without the helpers and silence
+ * compiler warnings unused static functions.
+ */
+#define EVENT_DEFINE_RANGE_FORMAT_LITE(name, attr_var, bit_start, bit_end) \
+PMU_FORMAT_ATTR(name, #attr_var ":" #bit_start "-" #bit_end);
+
 #define EVENT_DEFINE_RANGE(name, attr_var, bit_start, bit_end)	\
 static u64 event_get_##name##_max(void)					\
 {									\
-- 
1.8.3.1

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