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perf bench numa: Fix type of loop iterator in do_work, it should be 'long'

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'j' is of type int and start/end are of type 'long'. Thus 'j' might become
negative and cause segfault in access_data(). Fix it by using 'long' for
'j' as well.

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Andreas Herrmann <aherrmann@suse.de>
Link: https://lore.kernel.org/r/20230330074202.14052-1-aherrmann@suse.de
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Andreas Herrmann 2023-03-30 09:42:02 +02:00 committed by Arnaldo Carvalho de Melo
parent 5a892c3da3
commit 337fa2db04
1 changed files with 1 additions and 1 deletions
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tools/perf/bench/numa.c
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@ -847,7 +847,7 @@ static u64 do_work(u8 *__data, long bytes, int nr, int nr_max, int loop, u64 val
if (g->p.data_rand_walk) {
u32 lfsr = nr + loop + val;
int j;
long j;
for (i = 0; i < words/1024; i++) {
long start, end;