I set a single goal: build an OpenWRT eBPF toolchain end to end—compile, flash, and verify on real hardware with no guesswork. I explain the steps I use: enable CONFIG_BPF, CONFIG_BPF_SYSCALL, CONFIG_NET_CLS_BPF, and CONFIG_NET_ACT_BPF in the kernel via make menuconfig. Then I install build deps on my Linux host, clone the official repo, and run […]