tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 06a81c1c7db9bd5de0bd38cd5acc44bb22b99150 commit: 2dc53d0047458e28ed05b4548844ba78199857bf crypto: sa2ul - add sha1/sha256/sha512 support date: 2 weeks ago config: m68k-randconfig-r002-20200809 (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 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 checkout 2dc53d0047458e28ed05b4548844ba78199857bf # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 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 >>): In file included from include/linux/err.h:5, from include/linux/clk.h:12, from drivers/crypto/sa2ul.c:11: include/linux/scatterlist.h: In function 'sg_set_buf': arch/m68k/include/asm/page_no.h:33:50: warning: ordered comparison of pointer with null pointer [-Wextra] 33 | #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ | ^~ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~ include/linux/scatterlist.h:143:10: note: in expansion of macro 'virt_addr_valid' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~~~~~~~~~~ In file included from include/linux/device.h:15, from include/linux/dmaengine.h:8, from drivers/crypto/sa2ul.c:12: drivers/crypto/sa2ul.c: In function 'sa_sha_init': 1349 | crypto_ahash_digestsize(tfm), (u64)rctx); | ^ include/linux/dev_printk.h:123:47: note: in definition of macro 'dev_dbg' 123 | dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \ | ^~~~~~~~~~~ vim +1349 drivers/crypto/sa2ul.c 1341 1342 static int sa_sha_init(struct ahash_request *req) 1343 { 1344 struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); 1345 struct sa_sha_req_ctx *rctx = ahash_request_ctx(req); 1346 struct sa_tfm_ctx *ctx = crypto_ahash_ctx(tfm); 1347 1348 dev_dbg(sa_k3_dev, "init: digest size: %d, rctx=%llx\n", 1350 1351 ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback.ahash); 1352 rctx->fallback_req.base.flags = 1353 req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; 1354 1355 return crypto_ahash_init(&rctx->fallback_req); 1356 } 1357 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org