Re: [PATCH 1/3] libtracefs utest: Silence string-plus-int warnings

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On Fri, Apr 23, 2021 at 6:54 AM Ian Rogers <irogers@xxxxxxxxxx> wrote:
>
> Fix warnings of the form:
>
> utest/tracefs-utest.c:476:35: error: adding 'int' to a string does not append to the string [-Werror,-Wstring-plus-int]
>         CU_TEST(strstr(kprobes, KPROBE_1 + 2) != NULL);
>         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
>

Hi Ian,
Thanks for testing and sending this patch. What
compiler/version/options you are using to get these warnings ?
The whole patchset looks good to me.

Acked-by: Tzvetomir Stoyanov <tz.stoyanov@xxxxxxxxx>



> Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
> ---
>  utest/tracefs-utest.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/utest/tracefs-utest.c b/utest/tracefs-utest.c
> index edb3a3d..c5efd5f 100644
> --- a/utest/tracefs-utest.c
> +++ b/utest/tracefs-utest.c
> @@ -453,21 +453,21 @@ static void test_instance_file(void)
>         CU_TEST(ret == strlen(KPROBE_1));
>         kprobes = tracefs_instance_file_read(NULL, KPROB_EVTS, &size);
>         CU_TEST(kprobes != NULL);
> -       CU_TEST(strstr(kprobes, KPROBE_1 + 2) != NULL);
> +       CU_TEST(strstr(kprobes, &KPROBE_1[2]) != NULL);
>         free(kprobes);
>
>         ret = tracefs_instance_file_append(NULL, KPROB_EVTS, KPROBE_2);
>         CU_TEST(ret == strlen(KPROBE_2));
>         kprobes = tracefs_instance_file_read(NULL, KPROB_EVTS, &size);
>         CU_TEST(kprobes != NULL);
> -       CU_TEST(strstr(kprobes, KPROBE_2 + 2) != NULL);
> +       CU_TEST(strstr(kprobes, &KPROBE_2[2]) != NULL);
>         free(kprobes);
>
>         ret = tracefs_instance_file_append(NULL, KPROB_EVTS, KPROBE_1_RM);
>         CU_TEST(ret == strlen(KPROBE_1_RM));
>         kprobes = tracefs_instance_file_read(NULL, KPROB_EVTS, &size);
>         CU_TEST(kprobes != NULL);
> -       CU_TEST(strstr(kprobes, KPROBE_1 + 2) == NULL);
> +       CU_TEST(strstr(kprobes, &KPROBE_1[2]) == NULL);
>         free(kprobes);
>
>         ret = tracefs_instance_file_clear(NULL, KPROB_EVTS);
> --
> 2.31.1.498.g6c1eba8ee3d-goog
>


--
Tzvetomir (Ceco) Stoyanov
VMware Open Source Technology Center



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