Hi Florian, I love your patch! Yet something to improve: [auto build test ERROR on net/master] url: https://github.com/0day-ci/linux/commits/Florian-Fainelli/net-phy-broadco... base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git 8515455720c52a0841bd1c9c5f457c9616900110 config: arm-randconfig-r023-20210310 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project cd9a69289c7825d54450cb6829fef2c8e0f1963a) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/0day-ci/linux/commit/06734c5da3238dad0a1ec26dac3d46987... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Florian-Fainelli/net-phy-broadcom-Suspend-fixes/20210311-044539 git checkout 06734c5da3238dad0a1ec26dac3d4698724157ac # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): usleep(40); ^ 1 error generated. vim +/usleep +405 drivers/net/phy/broadcom.c 390 391 static int bcm54xx_resume(struct phy_device *phydev) 392 { 393 int ret; 394 395 /* Writes to register other than BMCR would be ignored 396 * unless we clear the PDOWN bit first 397 */ 398 ret = genphy_resume(phydev); 399 if (ret < 0) 400 return ret; 401 402 /* Upon exiting power down, the PHY remains in an internal reset state 403 * for 40us 404 */ 406 407 return bcm54xx_config_init(phydev); 408 } 409 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org