I got this message: * Messages for package dev-libs/roct-thunk-interface-5.3.3: * CONFIG_ZONE_DEVICE: is not set when it should be. * Please check to make sure these options are set correctly. * Failure to do so may cause unexpected problems. and stated searching for ZONE_DEVICE in my kernel config, but can't find it: $ grep ZONE_DEVICE /usr/src/linux/.config $ $ grep ZONE /usr/src/linux/.config CONFIG_BLK_DEV_ZONED=y CONFIG_BLK_DEBUG_FS_ZONED=y CONFIG_ZONE_DMA=y CONFIG_ZONE_DMA32=y # CONFIG_NF_CONNTRACK_ZONES is not set # CONFIG_DM_ZONED is not set # CONFIG_ZONEFS_FS is not set $ Any idea where it might be hiding?