reproduce (this is a W=1 build): git remote add char-misc https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git git fetch char-misc char-misc-testing git checkout char-misc/char-misc-testing b4 shazam https://lore.kernel.org/r/20240214221847.2066632-16-ross.philipson@oracle.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 drivers/firmware/