On Fri, 11 Dec 2020 13:43:39 +0000 Chris Down <chris@xxxxxxxxxxxxxx> wrote: > Hi folks, > > Andrew Morton writes: > >@@ -188,6 +190,10 @@ void quarantine_put(struct kasan_free_me > > local_irq_save(flags); > > > > q = this_cpu_ptr(&cpu_quarantine); > >+ if (q->offline) { > >+ local_irq_restore(flags); > >+ return; > >+ } > > qlist_put(q, &info->quarantine_link, cache->size); > > if (unlikely(q->bytes > QUARANTINE_PERCPU_SIZE)) { > > qlist_move_all(q, &temp); > > I'm afraid as well as the issues already identified, this also fails, because > `quarantine_put` now returns a bool after "kasan: sanitize objects when > metadata doesn't fit": > > mm/kasan/quarantine.c: In function ‘quarantine_put’: > mm/kasan/quarantine.c:198:3: error: ‘return’ with no value, in function returning non-void [-Werror=return-type] > 198 | return; > | ^~~~~~ > mm/kasan/quarantine.c:171:6: note: declared here > 171 | bool quarantine_put(struct kmem_cache *cache, void *object) Yup, thanks. I think I have this all fixed now, using the old apply-one-patch-compile-everything-repeat approach.