Re: string.h: Mark 34 functions with __must_check

[Markus Elfring]

> I'm curious. How many warnings showed up when you applied this patch?

I suggest to take another look at six places in a specific source file
(for example).
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/lib/test_kasan.c?id=b92a953cb7f727c42a15ac2ea59bf3cf9c39370d#n595
https://elixir.bootlin.com/linux/v5.4-rc2/source/lib/test_kasan.c#L595

Regards,
Markus