tree: http://git.linaro.org/people/jens.wiklander/linux-tee testing/tuxbuild head: 9ea0d125d4c9a4144b8641c454e97406b483722d commit: 5b552e1bc3780894781030500c0216a9e0bef3f8 [5/13] tee: simplify shm pool handling config: hexagon-randconfig-r041-20220113 (https://download.01.org/0day-ci/archive/20220114/202201141423.k7Z21dOm-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 82c8aca93488730ce8f66101e0f3538f14b551dd) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add jens-wiklander-tee http://git.linaro.org/people/jens.wiklander/linux-tee git fetch --no-tags jens-wiklander-tee testing/tuxbuild git checkout 5b552e1bc3780894781030500c0216a9e0bef3f8 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/tee/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): size_t a = max(align, BIT(genpool->min_alloc_order)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:52:19: note: expanded from macro 'max' #define max(x, y) __careful_cmp(x, y, >) ^~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:36:24: note: expanded from macro '__careful_cmp' __builtin_choose_expr(__safe_cmp(x, y), \ ^~~~~~~~~~~~~~~~ include/linux/minmax.h:26:4: note: expanded from macro '__safe_cmp' (__typecheck(x, y) && __no_side_effects(x, y)) ^~~~~~~~~~~~~~~~~ include/linux/minmax.h:20:28: note: expanded from macro '__typecheck' (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1))) ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~ 1 warning generated. vim +17 drivers/tee/tee_shm_pool.c 11 12 static int pool_op_gen_alloc(struct tee_shm_pool *pool, struct tee_shm *shm, 13 size_t size, size_t align) 14 { 15 unsigned long va; 16 struct gen_pool *genpool = pool->private_data; 18 struct genpool_data_align data = { .align = a }; 19 size_t s = roundup(size, a); 20 21 va = gen_pool_alloc_algo(genpool, s, gen_pool_first_fit_align, &data); 22 if (!va) 23 return -ENOMEM; 24 25 memset((void *)va, 0, s); 26 shm->kaddr = (void *)va; 27 shm->paddr = gen_pool_virt_to_phys(genpool, va); 28 shm->size = s; 29 /* 30 * This is from a static shared memory pool so no need to register 31 * each chunk, and no need to unregister later either. 32 */ 33 shm->flags &= ~TEE_SHM_REGISTER; 34 return 0; 35 } 36 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org