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wifi: mac80211: update the rx_chains after set_antenna()

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rx_chains was set only upon registration and it we rely on it for the
active chains upon SMPS configuration after association.

When we use the set_antenna() API to limit the rx_chains from 2 to 1,
this caused issues with iwlwifi since we still had 2 active_chains
requested.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230920211508.2dde4da246b2.I904223c868c77cf2ba132a3088fe6506fcbb443b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Emmanuel Grumbach 2023-09-20 21:25:13 +03:00 committed by Johannes Berg
parent b323949835
commit 2bf57b00ab
1 changed files with 7 additions and 1 deletions
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8
net/mac80211/cfg.c
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@ -4044,11 +4044,17 @@ ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
int ret;
if (local->started)
return -EOPNOTSUPP;
return drv_set_antenna(local, tx_ant, rx_ant);
ret = drv_set_antenna(local, tx_ant, rx_ant);
if (ret)
return ret;
local->rx_chains = hweight8(rx_ant);
return 0;
}
static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)