reproduce (this is a W=1 build): git remote add mtd https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git git fetch mtd spi-nor/next git checkout mtd/spi-nor/next b4 shazam https://lore.kernel.org/r/20260605005720.1857413-3-linchengming884@gmail.com # 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/mtd/spi-nor/