reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/ec9256c9e620f5fb54a559661a9f714e40157b48 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review UPDATE-20260924-184557/Nicol-s-Antinori/dt-bindings-display-add-Chipwealth-CH1115-OLED-Controller/20260923-193513 git checkout ec9256c9e620f5fb54a559661a9f714e40157b48 git clone https://github.com/intel/lkp-tests.git ~/lkp-tests # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-16.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-16.1.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash