On Thu, Jan 14, 2021 at 8:36 PM Andrey Konovalov <andreyknvl@xxxxxxxxxx> wrote: > > It might not be obvious to the compiler that the expression must be > executed between writing and reading to fail_data. In this case, the > compiler might reorder or optimize away some of the accesses, and > the tests will fail. > > Add compiler barriers around the expression in KUNIT_EXPECT_KASAN_FAIL > and use READ/WRITE_ONCE() for accessing fail_data fields. > > Link: https://linux-review.googlesource.com/id/I046079f48641a1d36fe627fc8827a9249102fd50 > Reviewed-by: Marco Elver <elver@xxxxxxxxxx> > Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx> Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx>
