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p54: Support boottime in scan results

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This patch fixes an issue with wpa_supplicant dropping all scan
results because their where considered to be "too old" (e.g.:
"skip - scan result not recent enough (121056.086325 seconds too old)")
which is very weird because this looks like that the scan results have
been received before a scan started. This is due to the inaccuracy of
the default timing mechanism for calculating the BSS entry age.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Christian Lamparter 2019-05-24 23:33:08 +02:00 committed by Kalle Valo
parent 1645ab9319
commit c11c75ec78
1 changed files with 6 additions and 0 deletions
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6
drivers/net/wireless/intersil/p54/txrx.c
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@ -334,6 +334,7 @@ static int p54_rx_data(struct p54_common *priv, struct sk_buff *skb)
u16 freq = le16_to_cpu(hdr->freq);
size_t header_len = sizeof(*hdr);
u32 tsf32;
__le16 fc;
u8 rate = hdr->rate & 0xf;
/*
@ -382,6 +383,11 @@ static int p54_rx_data(struct p54_common *priv, struct sk_buff *skb)
skb_pull(skb, header_len);
skb_trim(skb, le16_to_cpu(hdr->len));
fc = ((struct ieee80211_hdr *)skb->data)->frame_control;
if (ieee80211_is_probe_resp(fc) || ieee80211_is_beacon(fc))
rx_status->boottime_ns = ktime_get_boot_ns();
if (unlikely(priv->hw->conf.flags & IEEE80211_CONF_PS))
p54_pspoll_workaround(priv, skb);