On Tue, Sep 6, 2022 at 12:53 AM Vlastimil Babka <vbabka@xxxxxxx> wrote: > > On 9/6/22 08:51, Stephen Rothwell wrote: > > Hi all, > > Hi, > > > After merging the slab tree, today's linux-next build (powerpc > > ppc64_defconfig) failed like this: > > > > kernel/bpf/memalloc.c: In function 'bpf_mem_free': > > kernel/bpf/memalloc.c:613:33: error: implicit declaration of function '__ksize'; did you mean 'ksize'? [-Werror=implicit-function-declaration] > > 613 | idx = bpf_mem_cache_idx(__ksize(ptr - LLIST_NODE_SZ)); > > | ^~~~~~~ > > | ksize > > Could you use ksize() here? I'm guessing you picked __ksize() because > kasan_unpoison_element() in mm/mempool.c did, but that's to avoid > kasan_unpoison_range() in ksize() as this caller does it differently. > AFAICS your function doesn't handle kasan differently, so ksize() should > be fine. Ok. Will change to use ksize().
