reproduce (this is a W=1 build): git remote add andi-shyti https://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git git fetch andi-shyti i2c/i2c-host git checkout andi-shyti/i2c/i2c-host b4 shazam https://lore.kernel.org/r/20241007023900.3924763-2-aryan.srivastava@alliedtelesis.co.nz # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/i2c/busses/