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ath10k: fix rx_channel during hw reconfigure

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commit 1ce8c1484e upstream.

Upon firmware assert, restart work will be triggered so that mac80211
will reconfigure the driver. An issue is reported that after restart
work, survey dump data do not contain in-use (SURVEY_INFO_IN_USE) info
for operating channel. During reconfigure, since mac80211 already has
valid channel context for given radio, channel context iteration return
num_chanctx > 0. Hence rx_channel is always NULL. Fix this by assigning
channel context to rx_channel when driver restart is in progress.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rajkumar Manoharan
2016-04-07 12:11:54 +05:30
committed by Greg Kroah-Hartman
parent 86834a9133
commit 117d1b454b
1 changed files with 7 additions and 1 deletions
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8
drivers/net/wireless/ath/ath10k/mac.c
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@@ -6419,7 +6419,13 @@ ath10k_mac_update_rx_channel(struct ath10k *ar,
def = &vifs[0].new_ctx->def;
ar->rx_channel = def->chan;
} else if (ctx && ath10k_mac_num_chanctxs(ar) == 0) {
} else if ((ctx && ath10k_mac_num_chanctxs(ar) == 0) ||
(ctx && (ar->state == ATH10K_STATE_RESTARTED))) {
/* During driver restart due to firmware assert, since mac80211
* already has valid channel context for given radio, channel
* context iteration return num_chanctx > 0. So fix rx_channel
* when restart is in progress.
*/
ar->rx_channel = ctx->def.chan;
} else {
ar->rx_channel = NULL;