From: Johannes Berg <johannes.berg@xxxxxxxxx>
HE added support for dynamic fragmentation inside aggregation
sessions, but no existing driver ever advertises it. Thus,
remove the code for now, it cannot work as-is in MLO. For it
to properly work in MLO, we'd need to validate that the frag
level is identical across all the link bands/iftypes, which
is a good amount of complex code that's just not worth it as
long as no driver has support for it.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
net/mac80211/agg-rx.c | 19 -------------------
1 file changed, 19 deletions(-)
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index bd41022f4894..c6fa53230450 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -183,34 +183,15 @@ static void ieee80211_add_addbaext(struct ieee80211_sub_if_data *sdata,
const struct ieee80211_addba_ext_ie *req,
u16 buf_size)
{
- struct ieee80211_supported_band *sband;
struct ieee80211_addba_ext_ie *resp;
- const struct ieee80211_sta_he_cap *he_cap;
- u8 frag_level, cap_frag_level;
u8 *pos;
- sband = ieee80211_get_sband(sdata);
- if (!sband)
- return;
- he_cap = ieee80211_get_he_iftype_cap(sband,
- ieee80211_vif_type_p2p(&sdata->vif));
- if (!he_cap)
- return;
-
pos = skb_put_zero(skb, 2 + sizeof(struct ieee80211_addba_ext_ie));
*pos++ = WLAN_EID_ADDBA_EXT;
*pos++ = sizeof(struct ieee80211_addba_ext_ie);
resp = (struct ieee80211_addba_ext_ie *)pos;
resp->data = req->data & IEEE80211_ADDBA_EXT_NO_FRAG;
- frag_level = u32_get_bits(req->data,
- IEEE80211_ADDBA_EXT_FRAG_LEVEL_MASK);
- cap_frag_level = u32_get_bits(he_cap->he_cap_elem.mac_cap_info[0],
- IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_MASK);
- if (frag_level > cap_frag_level)
- frag_level = cap_frag_level;
- resp->data |= u8_encode_bits(frag_level,
- IEEE80211_ADDBA_EXT_FRAG_LEVEL_MASK);
resp->data |= u8_encode_bits(buf_size >> IEEE80211_ADDBA_EXT_BUF_SIZE_SHIFT,
IEEE80211_ADDBA_EXT_BUF_SIZE_MASK);
}
--
2.37.3
