From: Emmanuel Grumbach Date: Wed, 17 Apr 2013 06:47:00 +0000 (+0300) Subject: iwlwifi: dvm: don't send zeroed LQ cmd X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=63b77bf489881747c5118476918cc8c29378ee63;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git iwlwifi: dvm: don't send zeroed LQ cmd When the stations are being restored because of unassoc RXON, the LQ cmd may not have been initialized because it is initialized only after association. Sending zeroed LQ_CMD makes the fw unhappy: it raises SYSASSERT_2078. Cc: stable@vger.kernel.org Signed-off-by: Emmanuel Grumbach Reviewed-by: Johannes Berg [move zero_lq and make static const] Signed-off-by: Johannes Berg --- diff --git a/drivers/net/wireless/iwlwifi/dvm/sta.c b/drivers/net/wireless/iwlwifi/dvm/sta.c index b775769f8322..db183b44e038 100644 --- a/drivers/net/wireless/iwlwifi/dvm/sta.c +++ b/drivers/net/wireless/iwlwifi/dvm/sta.c @@ -695,6 +695,7 @@ void iwl_clear_ucode_stations(struct iwl_priv *priv, void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { struct iwl_addsta_cmd sta_cmd; + static const struct iwl_link_quality_cmd zero_lq = {}; struct iwl_link_quality_cmd lq; int i; bool found = false; @@ -733,7 +734,9 @@ void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx) else memcpy(&lq, priv->stations[i].lq, sizeof(struct iwl_link_quality_cmd)); - send_lq = true; + + if (!memcmp(&lq, &zero_lq, sizeof(lq))) + send_lq = true; } spin_unlock_bh(&priv->sta_lock); ret = iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC);