In Message Suppression page of the Viva64 settings you may adjust filters to ignore some warning messages.

You may adjust filters to skip messages with particular codes of errors and messages including names of variables and functions. Let’s study some examples.
On adding V104 as a filter all messages about errors with V104 code will be skipped.
After adding printf line into filters all the error messages in which this function is mentioned will be skipped. Pay attention that messages containing fprintf, wprintf etc will be skipped too. If you want to skip only messages with printf you should enter this name in the same way as it looks in the error message i.e. as 'printf'.