From 337fa2db04785c60fc3aa736af98ce8358f87d34 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Thu, 30 Mar 2023 09:42:02 +0200 Subject: perf bench numa: Fix type of loop iterator in do_work, it should be 'long' '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 Signed-off-by: Andreas Herrmann Link: https://lore.kernel.org/r/20230330074202.14052-1-aherrmann@suse.de Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/bench/numa.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools/perf/bench') diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c index 9717c6c17433..1fbd7c947abc 100644 --- a/tools/perf/bench/numa.c +++ b/tools/perf/bench/numa.c @@ -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; -- cgit v1.2.3