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staging: wfx: fix value of scan timeout

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Before to start the scan request, the firmware signals (with a null
frame) to the AP it won't be able to receive data. This frame can be
long to send: up to 512TU. The current calculus of the scan timeout does
not take into account this delay.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200515083325.378539-5-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jérôme Pouiller 2020-05-15 10:33:10 +02:00 committed by Greg Kroah-Hartman
parent 201451cfe4
commit 6598b12d66
1 changed files with 1 additions and 1 deletions
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drivers/staging/wfx/hif_tx.c
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@ -288,7 +288,7 @@ int hif_scan(struct wfx_vif *wvif, struct cfg80211_scan_request *req,
tmo_chan_bg = le32_to_cpu(body->max_channel_time) * USEC_PER_TU;
tmo_chan_fg = 512 * USEC_PER_TU + body->probe_delay;
tmo_chan_fg *= body->num_of_probe_requests;
tmo = chan_num * max(tmo_chan_bg, tmo_chan_fg);
tmo = chan_num * max(tmo_chan_bg, tmo_chan_fg) + 512 * USEC_PER_TU;
wfx_fill_header(hif, wvif->id, HIF_REQ_ID_START_SCAN, buf_len);
ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);