On Mon, Mar 3, 2025 at 12:55 AM kernel test robot <lkp@xxxxxxxxx> wrote: > > Hi Peilin, > > kernel test robot noticed the following build errors: > > [auto build test ERROR on bpf-next/master] > > url: https://github.com/intel-lab-lkp/linux/commits/Peilin-Ye/bpf-verifier-Factor-out-atomic_ptr_type_ok/20250303-134110 > base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master > patch link: https://lore.kernel.org/r/2c82b29f3530b961b41f94a4942e490ab35a31c8.1740978603.git.yepeilin%40google.com > patch subject: [PATCH bpf-next v4 04/10] bpf: Introduce load-acquire and store-release instructions > config: arc-randconfig-002-20250303 (https://download.01.org/0day-ci/archive/20250303/202503031631.OeUhVRHz-lkp@xxxxxxxxx/config) > compiler: arc-elf-gcc (GCC) 13.2.0 ... > kernel/bpf/core.c:2228:25: note: in expansion of macro 'LOAD_ACQUIRE' > 2228 | LOAD_ACQUIRE(DW, u64) > | ^~~~~~~~~~~~ Peilin, how do you plan on fixing this? So far I could only think of making compilation conditional for CONFIG_64BIT and let the verifier reject these insns on 32-bit arches. Other ideas?
