linux-kernel - [PATCH] perf: Remove pointless union that wraps the hw breakpoint fields

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Message-Id: <1259878830-8552-1-git-send-regression-fweisbec@gmail.com>
Date:	Thu,  3 Dec 2009 23:20:30 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	Prasad <prasad@...ux.vnet.ibm.com>
Subject: [PATCH] perf: Remove pointless union that wraps the hw breakpoint fields

It stands to anonymize a structure, but structure can already anonimize
by themselves.

Reported-by: Peter Zijlstra <peterz@...radead.org>
Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Prasad <prasad@...ux.vnet.ibm.com>
---
 include/linux/perf_event.h |   16 +++++++---------
 1 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 89832cc..d045e6e 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -215,15 +215,13 @@ struct perf_event_attr {
 		__u32		wakeup_watermark; /* bytes before wakeup   */
 	};
 
-	union {
-		struct { /* Hardware breakpoint info */
-			__u64		bp_start;
-			__u64		bp_end;
-			__u32		bp_type;
-			__u32		bp_len;
-			__u64		__bp_reserved_1;
-			__u64		__bp_reserved_2;
-		};
+	struct { /* Hardware breakpoint info */
+		__u64		bp_start;
+		__u64		bp_end;
+		__u32		bp_type;
+		__u32		bp_len;
+		__u64		__bp_reserved_1;
+		__u64		__bp_reserved_2;
 	};
 
 	__u32			__reserved_2;
-- 
1.6.2.3

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