linux-kernel - [tip:perf/core] perf header: Remove attr_offset from perf

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Message-ID: <tip-944d62ba4c8e1c9bb2962a70e3d495106fae8cd9@git.kernel.org>
Date:	Fri, 19 Jul 2013 00:54:31 -0700
From:	tip-bot for Jiri Olsa <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, paulus@...ba.org,
	hpa@...or.com, mingo@...nel.org, a.p.zijlstra@...llo.nl,
	namhyung@...nel.org, jolsa@...hat.com, fweisbec@...il.com,
	ak@...ux.intel.com, dsahern@...il.com, tglx@...utronix.de,
	cjashfor@...ux.vnet.ibm.com, mingo@...e.hu
Subject: [tip:perf/core] perf header: Remove attr_offset from perf_header

Commit-ID:  944d62ba4c8e1c9bb2962a70e3d495106fae8cd9
Gitweb:     http://git.kernel.org/tip/944d62ba4c8e1c9bb2962a70e3d495106fae8cd9
Author:     Jiri Olsa <jolsa@...hat.com>
AuthorDate: Wed, 17 Jul 2013 19:49:43 +0200
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 17 Jul 2013 16:46:25 -0300

perf header: Remove attr_offset from perf_header

Removing attr_offset from perf_header as it's possible to use it as a
local variable.

Signed-off-by: Jiri Olsa <jolsa@...hat.com>
Cc: Andi Kleen <ak@...ux.intel.com>
Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1374083403-14591-4-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/header.c | 5 +++--
 tools/perf/util/header.h | 1 -
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 035efe7..dcba56a 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2272,6 +2272,7 @@ int perf_session__write_header(struct perf_session *session,
 	struct perf_file_attr   f_attr;
 	struct perf_header *header = &session->header;
 	struct perf_evsel *evsel;
+	u64 attr_offset;
 	int err;
 
 	lseek(fd, sizeof(f_header), SEEK_SET);
@@ -2285,7 +2286,7 @@ int perf_session__write_header(struct perf_session *session,
 		}
 	}
 
-	header->attr_offset = lseek(fd, 0, SEEK_CUR);
+	attr_offset = lseek(fd, 0, SEEK_CUR);
 
 	list_for_each_entry(evsel, &evlist->entries, node) {
 		f_attr = (struct perf_file_attr){
@@ -2315,7 +2316,7 @@ int perf_session__write_header(struct perf_session *session,
 		.size	   = sizeof(f_header),
 		.attr_size = sizeof(f_attr),
 		.attrs = {
-			.offset = header->attr_offset,
+			.offset = attr_offset,
 			.size   = evlist->nr_entries * sizeof(f_attr),
 		},
 		.data = {
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index 0bacb2d..6fa80f9 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -86,7 +86,6 @@ struct perf_session_env {
 
 struct perf_header {
 	bool			needs_swap;
-	s64			attr_offset;
 	u64			data_offset;
 	u64			data_size;
 	DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
--
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