reproduce (this is a W=1 build):
        git checkout f338e77383789c0cae23ca3d48adcc5e9e137e3c
        b4 shazam https://lore.kernel.org/r/20260318-irq-intel-soc-msi-v1-2-0e8cdf844fa8@dev.tdt.de

        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=um olddefconfig
        make W=1 O=build_dir ARCH=um SHELL=/bin/bash drivers/irqchip/