const golang.org/x/sys/unix.XDP_UMEM_TX_METADATA_LEN

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux.go#L3715: 	XDP_UMEM_TX_METADATA_LEN                    = 0x4

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)