prometheus-node-exporter-lua-uci_dhcp_host: 'upper' (string expected, got table)

[juniorfga]

Package Name

prometheus-node-exporter-lua-uci_dhcp_host

Maintainer

@aparcar

OpenWrt Version

24.10.4

OpenWrt Target/Subtarget

mediatek/filogic

Steps to Reproduce

1. Configure a static lease as

config host
	option name 'Laptop'
	option ip '192.168.X.XX'
	list mac 'XX:XX:XX:XX:XX:XX'
	list mac 'XX:XX:XX:XX:XX:XY'

2. Install the package
3. Error appear in log

Sat Nov 29 07:33:48 2025 daemon.err uhttpd[2697]: /usr/lib/lua/prometheus-collectors/uci_dhcp_host.lua:9: bad argument #1 to 'upper' (string expected, got table)
Sat Nov 29 07:34:03 2025 daemon.err uhttpd[2697]: /usr/lib/lua/prometheus-collectors/uci_dhcp_host.lua:9: bad argument #1 to 'upper' (string expected, got table)

Actual Behaviour

An error appear in logs very frecuently when you add a static lease with two Mac Addresses. Example when you want to assign an especific IP Address to your laptop via Wireless or Ethernet.
I'm sorry to have assigned this to @aparcar, unfortunately the original creator account(Gérondal Thibault contact@tycale.be) is no longer in Github

Confirmation Checklist

• The package is maintained in this repository.
• I understand that issues related to the base OpenWrt repository or LuCI repository will be closed.
• I am reporting an issue for OpenWrt, not an unsupported fork.