[PATCH 24/25] perf c2c: Fix report with offline cpus

[Arnaldo Carvalho de Melo]

From: Ravi Bangoria <ravi.bangoria@xxxxxxxxxxxxx>

If c2c is recorded on a machine where any cpus are offline, 'perf c2c
report' throws an error "node/cpu topology bugFailed setup nodes".

It fails because while preparing node-cpu mapping we don't consider
offline cpus.

Reported-by: Nageswara R Sastry <nasastry@xxxxxxxxxx>
Signed-off-by: Ravi Bangoria <ravi.bangoria@xxxxxxxxxxxxx>
Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Fixes: 1e181b92a2da ("perf c2c report: Add 'node' sort key")
Link: http://lkml.kernel.org/r/20190822085045.25108-1-ravi.bangoria@xxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/builtin-c2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 01629f5b6d1f..211143720078 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -2027,7 +2027,7 @@ static int setup_nodes(struct perf_session *session)
 		c2c.node_info = 2;
 
 	c2c.nodes_cnt = session->header.env.nr_numa_nodes;
-	c2c.cpus_cnt  = session->header.env.nr_cpus_online;
+	c2c.cpus_cnt  = session->header.env.nr_cpus_avail;
 
 	n = session->header.env.numa_nodes;
 	if (!n)
-- 
2.21.0