Hi,
I am trying experiment with ath9k.

I have built OpenWRT Chaos Calmer. I see that there are two paths for files for ath9k driver. For example, for file xmit.c, the two paths are:

~home/openwrt/build_dir/toolchain-mips_34kc_gcc-4.8-linaro_uClibc-0.9.33.2/linux-3.18.45/drivers/net/wireless/ath/ath9k/xmit.c

and

~home/openwrt/build_dir/target-mips_34kc_uClibc-0.9.33.2/linux-ar71xx_mikrotik/linux-3.18.45/drivers/net/wireless/ath/ath9k/xmit.c

Which of the two files should I take for modifications if I want to work with xmit.c?

Any help is greatly appreciated.

Regards.