[tip:perf/core] perf tools: Fix build on gcc 4.4.7

[tip-bot for Arnaldo Carvalho de Melo]

Commit-ID:  0524798cc3d74546e83ebd795e9a5ed44481eaa6
Gitweb:     http://git.kernel.org/tip/0524798cc3d74546e83ebd795e9a5ed44481eaa6
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Wed, 23 Jul 2014 18:15:09 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 23 Jul 2014 18:15:09 -0300

perf tools: Fix build on gcc 4.4.7

[acme@sandy linux]$ gcc --version
gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-3)
Copyright (C) 2010 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[acme@sandy linux]$ make O=/tmp/build/perf -C tools/perf install-bin
<SNIP>
  CC       /tmp/build/perf/builtin-trace.o
builtin-trace.c: In function âperf_evlist__add_pgfaultâ:
builtin-trace.c:1997: error: unknown field âsample_periodâ specified in initializer
make[1]: *** [/tmp/build/perf/builtin-trace.o] Error 1
make: *** [install-bin] Error 2
make: Leaving directory `/home/acme/git/linux/tools/perf'
[acme@sandy linux]$ make O=/tmp/build/perf -C tools/perf install-bin
make O=/tmp/build/perf -C tools/perf install-bin
make: Entering directory `/home/acme/git/linux/tools/perf'

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Don Zickus <dzickus@xxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-qt7h2g5fcf42qiw5hv7mgpjk@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/builtin-trace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index c4a5a7d..a6c3752 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1994,10 +1994,10 @@ static int perf_evlist__add_pgfault(struct perf_evlist *evlist,
 	struct perf_event_attr attr = {
 		.type = PERF_TYPE_SOFTWARE,
 		.mmap_data = 1,
-		.sample_period = 1,
 	};
 
 	attr.config = config;
+	attr.sample_period = 1;
 
 	event_attr_init(&attr);
 
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