[RFC] Expand byte counters in struct station_info

[Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>]

Hi,

Now wifi drivers reports per-station info using struct station_info;
and currently for the data counters it has:
	u32 rx_bytes;
	u32 tx_bytes;

while for device-wide statistics one can use ndo_get_stats64() to fill
64-bit counters in the struct rtnl_link_stats64, per-station statistics
are 32-bit.

This becomes problematic with gigabit speeds now observed for .11ac and .11ad -
counters overflown every few seconds.

I'd like to extend rx and tx byte counters to 64-bit.

What is better - expand existing fields in struct station_info as:
	u64 rx_bytes;
	u64 tx_bytes;
or add ne ones like:
	u64 rx_bytes64;
	u64 tx_bytes64;


Then, I'll add
	NL80211_STA_INFO_RX_BYTES64,
	NL80211_STA_INFO_TX_BYTES64,
to the enum nl80211_sta_info

Before doing patch, I'd like to hear comments.
Any consideration why is this not to be done or done differently?

Thanks, Vladimir