Hi Jason, [auto build test ERROR on cryptodev/master] [also build test ERROR on v4.9-rc4 next-20161111] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Jason-A-Donenfeld/poly1305-generic-C-can-be-faster-on-chips-with-slow-unaligned-access/20161108-053912 base: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master config: openrisc-allmodconfig (attached as .config) compiler: or32-linux-gcc (GCC) 4.5.1-or32-1.0rc1 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=openrisc All errors (new ones prefixed by >>): crypto/poly1305_generic.c: In function 'poly1305_setrkey': >> crypto/poly1305_generic.c:63:2: error: implicit declaration of function 'get_unaligned_le32' vim +/get_unaligned_le32 +63 crypto/poly1305_generic.c 57 } 58 EXPORT_SYMBOL_GPL(crypto_poly1305_setkey); 59 60 static void poly1305_setrkey(struct poly1305_desc_ctx *dctx, const u8 *key) 61 { 62 /* r &= 0xffffffc0ffffffc0ffffffc0fffffff */ > 63 dctx->r[0] = (get_unaligned_le32(key + 0) >> 0) & 0x3ffffff; 64 dctx->r[1] = (get_unaligned_le32(key + 3) >> 2) & 0x3ffff03; 65 dctx->r[2] = (get_unaligned_le32(key + 6) >> 4) & 0x3ffc0ff; 66 dctx->r[3] = (get_unaligned_le32(key + 9) >> 6) & 0x3f03fff; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation