reproduce (this is a W=1 build): git remote add bluetooth-next https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git git fetch bluetooth-next master git checkout bluetooth-next/master b4 shazam https://lore.kernel.org/r/20240704060116.16600-9-chris.lu@mediatek.com # 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