reproduce (this is a W=1 build): git checkout 70ec81c2e2b4005465ad0d042e90b36087c36104 b4 shazam https://lore.kernel.org/r/20240528-hid_bpf_struct_ops-v1-3-8c6663df27d8@kernel.org # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 olddefconfig make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/hid/bpf/