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wifi: mac80211: update TIM for S1G specification changes

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Updates to the TIM information element to match changes made in the
IEEE Std 802.11ah-2020.

Signed-off-by: Kieran Frewen <kieran.frewen@morsemicro.com>
Co-developed-by: Gilad Itzkovitch <gilad.itzkovitch@morsemicro.com>
Signed-off-by: Gilad Itzkovitch <gilad.itzkovitch@morsemicro.com>
Link: https://lore.kernel.org/r/20221106221602.25714-1-gilad.itzkovitch@morsemicro.com
[use skb_put_data/skb_put_u8]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Kieran Frewen 2022-11-07 11:16:02 +13:00 • committed by Johannes Berg
parent 8950b5988a
commit 209d70d34a
1 changed files with 9 additions and 5 deletions
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14
net/mac80211/tx.c
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@ -4774,9 +4774,9 @@ static void __ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,
ps->dtim_count--;
}
tim = pos = skb_put(skb, 6);
tim = pos = skb_put(skb, 5);
*pos++ = WLAN_EID_TIM;
*pos++ = 4;
*pos++ = 3;
*pos++ = ps->dtim_count;
*pos++ = link_conf->dtim_period;
@ -4807,13 +4807,17 @@ static void __ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,
/* Bitmap control */
*pos++ = n1 | aid0;
/* Part Virt Bitmap */
skb_put(skb, n2 - n1);
memcpy(pos, ps->tim + n1, n2 - n1 + 1);
skb_put_data(skb, ps->tim + n1, n2 - n1 + 1);
tim[1] = n2 - n1 + 4;
} else {
*pos++ = aid0; /* Bitmap control */
*pos++ = 0; /* Part Virt Bitmap */
if (ieee80211_get_link_sband(link)->band != NL80211_BAND_S1GHZ) {
tim[1] = 4;
/* Part Virt Bitmap */
skb_put_u8(skb, 0);
}
}
}