Re: [PATCH 1/2] tests/qtest: migration-test: Fix [-Werror=format-overflow=] build warning

[Markus Armbruster <armbru@redhat.com>]

Markus Armbruster <armbru@redhat.com> writes:

> Bin Meng <bmeng.cn@gmail.com> writes:
>
>> From: Bin Meng <bin.meng@windriver.com>
>>
>> When tmpfs is NULL, a build warning is seen with GCC 9.3.0.
>> It's strange that GCC 11.2.0 on Ubuntu 22.04 does not catch this,
>> neither did the QEMU CI.
>>
>> Reported-by: Shengjiang Wu <shengjiang.wu@windriver.com>
>> Fixes: e5553c1b8d28 ("tests/qtest: migration-test: Avoid using hardcoded /tmp")
>> Signed-off-by: Bin Meng <bin.meng@windriver.com>
>> ---
>>
>>  tests/qtest/migration-test.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
>> index ef4427ff4d..83a8998e40 100644
>> --- a/tests/qtest/migration-test.c
>> +++ b/tests/qtest/migration-test.c
>> @@ -2481,7 +2481,7 @@ int main(int argc, char **argv)
>>  
>>      tmpfs = g_dir_make_tmp("migration-test-XXXXXX", &err);
>>      if (!tmpfs) {
>> -        g_test_message("g_dir_make_tmp on path (%s): %s", tmpfs,
>> +        g_test_message("g_dir_make_tmp on path (%s): %s", g_get_tmp_dir(),
>>                         err->message);
>>      }
>>      g_assert(tmpfs);
>
> Thomas posted the same fix as "[PATCH] tests/qtest/migration-test: Do
> not try to print NULL pointer string".  You guys figure out which one
> you like better :)

Correction: not the same.

> Reviewed-by: Markus Armbruster <armbru@redhat.com>