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selftests/bpf: Mute expected invalid map creation error msg

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Previously, the newly introduced test case in test_map_in_map(), which
checks whether the inner map is destroyed after unsuccessful creation of
the outer map, logged the following harmless and expected error:

    libbpf: map 'mim': failed to create: Invalid argument(-22) libbpf:
    failed to load object './test_map_in_map_invalid.o'

To avoid any possible confusion, mute the logging during loading of the
prog.

Fixes: 08f71a1e39 ("selftests/bpf: Check inner map deletion")
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Martynas Pumputis <m@lambda.lt>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210721140941.563175-1-m@lambda.lt
This commit is contained in:
Martynas Pumputis 2021-07-21 16:09:41 +02:00 committed by Andrii Nakryiko
parent 724f17b7d4
commit 9907442fcd
1 changed files with 5 additions and 0 deletions
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5
tools/testing/selftests/bpf/test_maps.c
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@ -1163,6 +1163,7 @@ static void test_map_in_map(void)
struct bpf_map_info info = {};
__u32 len = sizeof(info);
__u32 id = 0;
libbpf_print_fn_t old_print_fn;
obj = bpf_object__open(MAPINMAP_PROG);
@ -1250,12 +1251,16 @@ static void test_map_in_map(void)
goto out_map_in_map;
}
old_print_fn = libbpf_set_print(NULL);
err = bpf_object__load(obj);
if (!err) {
printf("Loading obj supposed to fail\n");
goto out_map_in_map;
}
libbpf_set_print(old_print_fn);
/* Iterate over all maps to check whether the internal map
* ("mim.internal") has been destroyed.
*/