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?
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