[PATCH v2] ath10k: handle cycle count wrap around

[Kalle Valo]

Srinivasa Duvvuri <sduvvuri at chromium.org> writes:

> This patch addresses
>  couple of issues related to survey data that results   in a random/large
>  values in the out put of iw dev wlan0 surevey dump.
>
>   These are the 2 changes that address the issue.
>
>   1) Handle Cycle count wrap around.
>      When the cycle counts part of wmi_ch_info_ev_arg reach max value of
>      0xffffffff. The HW/FW right shifts all the counteirs by 1 . The cycle
>      count will be reset to 0x7fffffff and starts counting from 0x7fffffff and
>      the other counters will have their value right shifted by 1 (divided by 2).
>      There is no way to handle this odd wrap around. Detect and ignore the wrap
>      around case.
>
>   2) Handle Back to back channel info events from FW with
>      WMI_CHAN_INFO_FLAG_COMPLETE.
>      Between 2 scans FW sends back to back events with
>      WMI_CHAN_INFO_FLAG_COMPLETE flag set. One at the end of first scan
>      and the second at the beginning of scan. Depending on the time
>      between 2 scans , the cycle counts could have wrapped around several
>      timesi. Fix is detect and to ignore such events.
>
> Signed-off-by: Srinivasa Duvvuri <sduvvuri at chromium.org>

Please CC linux-wireless when sending ath10k patches.

Did you use git-send-email? There seems to be some kind of corruption:

patch -p1 < srini-1.mbox 
patching file drivers/net/wireless/ath/ath10k/core.h
Hunk #1 FAILED at 688.
1 out of 1 hunk FAILED -- saving rejects to file drivers/net/wireless/ath/ath10k/core.h.rej
patching file drivers/net/wireless/ath/ath10k/wmi.c
patch: **** malformed patch at line 131: *ar, struct sk_buff *skb)

-- 
Kalle Valo