reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/b58a906ae381ef91f4e88afd4862bee58a0c7bf2 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Zhiping-Zhang/vfio-add-dma-buf-get_tph-callback-and-DMA_BUF_TPH-feature/20260505-063643 git checkout b58a906ae381ef91f4e88afd4862bee58a0c7bf2 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=$HOME/0day COMPILER=clang-20 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-20 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/infiniband/hw/mlx5/