Re: [PATCH 1/3] kunit: remove va_format from kunit_assert

From: Brendan Higgins
Date: Thu Jan 27 2022 - 16:22:22 EST


On Tue, Jan 25, 2022 at 4:00 PM Daniel Latypov <dlatypov@xxxxxxxxxx> wrote:
>
> The concern is that having a lot of redundant fields in kunit_assert can
> blow up stack usage if the compiler doesn't optimize them away [1].
>
> The comment on this field implies that it was meant to be initialized
> when the expect/assert was declared, but this only happens when we run
> kunit_do_failed_assertion().
>
> We don't need to access it outside of that function, so move it out of
> the struct and make it a local variable there.
>
> This change also takes the chance to reduce the number of macros by
> inlining the now simplified KUNIT_INIT_ASSERT_STRUCT() macro.
>
> [1] https://groups.google.com/g/kunit-dev/c/i3fZXgvBrfA/m/VULQg1z6BAAJ
>
> Signed-off-by: Daniel Latypov <dlatypov@xxxxxxxxxx>

Reviewed-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx>