On Wed, Nov 15, 2023 at 9:35 PM Ilya Leoshkevich <i...@linux.ibm.com> wrote: > > The unwind code can read uninitialized frames. Furthermore, even in > the good case, KMSAN does not emit shadow for backchains. Therefore > disable it for the unwinding functions. > > Signed-off-by: Ilya Leoshkevich <i...@linux.ibm.com> > --- > arch/s390/kernel/unwind_bc.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/s390/kernel/unwind_bc.c b/arch/s390/kernel/unwind_bc.c > index 0ece156fdd7c..7ecaab24783f 100644 > --- a/arch/s390/kernel/unwind_bc.c > +++ b/arch/s390/kernel/unwind_bc.c > @@ -49,6 +49,7 @@ static inline bool is_final_pt_regs(struct unwind_state > *state, > READ_ONCE_NOCHECK(regs->psw.mask) & PSW_MASK_PSTATE; > } > > +__no_kmsan_checks
Please add some comments to the source file to back this annotation, so that the intent is not lost in git history.
