Hi all, After merging the akpm tree, today's linux-next build (x86_64 allmodconfig) failed like this: 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) | ^~~~~~~~~~~~~~ mm/kasan/quarantine.c:200:16: error: 'info' undeclared (first use in this function) 200 | qlist_put(q, &info->quarantine_link, cache->size); | ^~~~ mm/kasan/quarantine.c:200:16: note: each undeclared identifier is reported only once for each function it appears in Caused by commits d6e0eb793f88 ("kasan: rename get_alloc/free_info") 453989cf05d6 ("kasan: sanitize objects when metadata doesn't fit") interacting with commit 2ac05f7fcf5b ("kasan: fix object remaining in offline per-cpu quarantine") from the akmp-current tree. This goes on and on :-( I have applied the following patch: From: Stephen Rothwell Date: Thu, 10 Dec 2020 20:24:01 +1100 Subject: [PATCH] fixup for "kasan: rename get_alloc/free_info" and "kasan: sanitize objects when metadata doesn't fit" and "kasan: fix object remaining in offline per-cpu quarantine" Signed-off-by: Stephen Rothwell --- mm/kasan/quarantine.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/kasan/quarantine.c b/mm/kasan/quarantine.c index c0331656f112..55783125a767 100644 --- a/mm/kasan/quarantine.c +++ b/mm/kasan/quarantine.c @@ -195,9 +195,9 @@ bool quarantine_put(struct kmem_cache *cache, void *object) q = this_cpu_ptr(&cpu_quarantine); if (q->offline) { local_irq_restore(flags); - return; + return false; } - qlist_put(q, &info->quarantine_link, cache->size); + qlist_put(q, &meta->quarantine_link, cache->size); if (unlikely(q->bytes > QUARANTINE_PERCPU_SIZE)) { qlist_move_all(q, &temp); -- 2.29.2 -- Cheers, Stephen Rothwell