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Subject[PATCH] perf c2c: Fix c2c report for empty numa node
Date
perf c2c report fails if system has empty numa node(0 cpus):

$ lscpu
NUMA node0 CPU(s):
NUMA node1 CPU(s): 0-4

$ sudo ./perf c2c report
node/cpu topology bugFailed setup nodes

Fix this.

Reported-by: Nageswara R Sastry <nasastry@in.ibm.com>
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
---
tools/perf/util/cpumap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index 383674f448fc..517c3f37c613 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -261,7 +261,7 @@ struct cpu_map *cpu_map__dummy_new(void)
struct cpu_map *cpus = malloc(sizeof(*cpus) + sizeof(int));

if (cpus != NULL) {
- cpus->nr = 1;
+ cpus->nr = 0;
cpus->map[0] = -1;
refcount_set(&cpus->refcnt, 1);
}
--
2.17.1
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