[FS#335] mac80211 : Warning prints in RX_NAPI

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - Koen Vandeputte (xback) 

Attached to Project - LEDE Project
Summary - mac80211 : Warning prints in RX_NAPI
Task Type - Bug Report
Category - Kernel
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Hardware:
- Multiple cns3xxx Gateworks Laguna boards in IBSS config
- 4x UBNT SR-71 per device (802.11n 2x2)
- LEDE r2114

No idea how to repro it properly ...


During a check of a device in the field, I noticed lots of these warnings:

[38467.750000] WARNING: CPU: 0 PID: 0 at compat-wireless-2016-10-08/net/mac80211/rx.c:4180 ieee80211_rx_napi+0xe4/0x934 [mac80211]()
[38467.760000] Rate marked as an HT rate but passed status->rate_idx is not an MCS index [0-76]: 126 (0x7e)


Full log:

http://pastebin.com/raw/rzF0XKyy

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=335