As far as I know, the wlags49_h2_cs driver (Agere Hermes 2 chipsets) is included in current kernel (for a long time). For Hermes 1 chipsets, the orinoco driver should be used. So I think the wl_lkm package [1] can be safely removed.
[1]: https://aur.archlinux.org/packages/wl_lkm/
pgpOnbjk0vXRB.pgp
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