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selftests/bpf: Reduce test_xdp_adjust_frags_tail_grow logs

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For selftest xdp_adjust_tail/xdp_adjust_frags_tail_grow, if tested failure,
I see a long list of log output like

    ...
    test_xdp_adjust_frags_tail_grow:PASS:9Kb+10b-untouched 0 nsec
    test_xdp_adjust_frags_tail_grow:PASS:9Kb+10b-untouched 0 nsec
    test_xdp_adjust_frags_tail_grow:PASS:9Kb+10b-untouched 0 nsec
    test_xdp_adjust_frags_tail_grow:PASS:9Kb+10b-untouched 0 nsec
    ...

There are total 7374 lines of the above which is too much. Let us
only issue such logs when it is an assert failure.

Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20250607013610.1551399-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Yonghong Song 2025-06-06 18:36:10 -07:00 committed by Alexei Starovoitov
parent 64a064ce33
commit ae8824037a
1 changed files with 12 additions and 6 deletions
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18
tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c
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@ -246,14 +246,20 @@ static void test_xdp_adjust_frags_tail_grow(void)
ASSERT_EQ(topts.retval, XDP_TX, "9Kb+10b retval");
ASSERT_EQ(topts.data_size_out, exp_size, "9Kb+10b size");
for (i = 0; i < 9000; i++)
ASSERT_EQ(buf[i], 1, "9Kb+10b-old");
for (i = 0; i < 9000; i++) {
if (buf[i] != 1)
ASSERT_EQ(buf[i], 1, "9Kb+10b-old");
}
for (i = 9000; i < 9010; i++)
ASSERT_EQ(buf[i], 0, "9Kb+10b-new");
for (i = 9000; i < 9010; i++) {
if (buf[i] != 0)
ASSERT_EQ(buf[i], 0, "9Kb+10b-new");
}
for (i = 9010; i < 16384; i++)
ASSERT_EQ(buf[i], 1, "9Kb+10b-untouched");
for (i = 9010; i < 16384; i++) {
if (buf[i] != 1)
ASSERT_EQ(buf[i], 1, "9Kb+10b-untouched");
}
/* Test a too large grow */
memset(buf, 1, 16384);