This is a note to let you know that I've just added the patch titled
wifi: iwlwifi: mvm: set siso/mimo chains to 1 in FW SMPS request
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-iwlwifi-mvm-set-siso-mimo-chains-to-1-in-fw-smp.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 466b3dccf4d662462558b5ee17e61578778cdc9f
Author: Johannes Berg <johannes.berg@xxxxxxxxx>
Date: Tue Dec 19 21:58:49 2023 +0200
wifi: iwlwifi: mvm: set siso/mimo chains to 1 in FW SMPS request
[ Upstream commit b1a2e5c310e063560760806d2cc5d2233c596067 ]
The firmware changed their mind, don't set the chains to zero,
instead set them to 1 as we normally would for connections to
APs that don't use MIMO.
Fixes: 2a7ce54ccc23 ("iwlwifi: mvm: honour firmware SMPS requests")
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Reviewed-by: Luciano Coelho <luciano.coelho@xxxxxxxxx>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@xxxxxxxxx>
Link: https://msgid.link/20231219215605.7f031f1a127f.Idc816e0f604b07d22a9d5352bc23c445512fad14@changeid
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c
index 6d82725cb87d..32ed8227d985 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c
@@ -99,17 +99,6 @@ static void iwl_mvm_phy_ctxt_set_rxchain(struct iwl_mvm *mvm,
active_cnt = 2;
}
- /*
- * If the firmware requested it, then we know that it supports
- * getting zero for the values to indicate "use one, but pick
- * which one yourself", which means it can dynamically pick one
- * that e.g. has better RSSI.
- */
- if (mvm->fw_static_smps_request && active_cnt == 1 && idle_cnt == 1) {
- idle_cnt = 0;
- active_cnt = 0;
- }
-
*rxchain_info = cpu_to_le32(iwl_mvm_get_valid_rx_ant(mvm) <<
PHY_RX_CHAIN_VALID_POS);
*rxchain_info |= cpu_to_le32(idle_cnt << PHY_RX_CHAIN_CNT_POS);
