2.6.38-stable review patch. If anyone has any objections, please let us know. ------------------ From: Stanislaw Gruszka <sgruszka@xxxxxxxxxx> commit b7977ffaab5187ad75edaf04ac854615cea93828 upstream. Add module ack_check, and plcp_check parameters. Ack_check is disabled by default since is proved that check ack health can cause troubles. Plcp_check is enabled by default. This prevent connection hangs with "low ack count detected" messages. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=666646 Signed-off-by: Stanislaw Gruszka <sgruszka@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx> --- drivers/net/wireless/iwlwifi/iwl-agn-lib.c | 1 + drivers/net/wireless/iwlwifi/iwl-agn.c | 6 ++++++ drivers/net/wireless/iwlwifi/iwl-core.h | 2 ++ drivers/net/wireless/iwlwifi/iwl-rx.c | 8 ++++++-- 4 files changed, 15 insertions(+), 2 deletions(-) --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -604,6 +604,7 @@ const u8 *iwlagn_eeprom_query_addr(const struct iwl_mod_params iwlagn_mod_params = { .amsdu_size_8K = 1, .restart_fw = 1, + .plcp_check = true, /* the rest are 0 by default */ }; --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -4586,3 +4586,9 @@ MODULE_PARM_DESC(antenna_coupling, module_param_named(bt_ch_inhibition, iwlagn_bt_ch_announce, bool, S_IRUGO); MODULE_PARM_DESC(bt_ch_inhibition, "Disable BT channel inhibition (default: enable)"); + +module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO); +MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])"); + +module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO); +MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])"); --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -263,6 +263,8 @@ struct iwl_mod_params { int amsdu_size_8K; /* def: 1 = enable 8K amsdu size */ int antenna; /* def: 0 = both antennas (use diversity) */ int restart_fw; /* def: 1 = restart firmware */ + bool plcp_check; /* def: true = enable plcp health check */ + bool ack_check; /* def: false = disable ack health check */ }; /* --- a/drivers/net/wireless/iwlwifi/iwl-rx.c +++ b/drivers/net/wireless/iwlwifi/iwl-rx.c @@ -234,10 +234,13 @@ EXPORT_SYMBOL(iwl_rx_spectrum_measure_no void iwl_recover_from_statistics(struct iwl_priv *priv, struct iwl_rx_packet *pkt) { + const struct iwl_mod_params *mod_params = priv->cfg->mod_params; + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return; if (iwl_is_any_associated(priv)) { - if (priv->cfg->ops->lib->check_ack_health) { + if (mod_params->ack_check && + priv->cfg->ops->lib->check_ack_health) { if (!priv->cfg->ops->lib->check_ack_health( priv, pkt)) { /* @@ -250,7 +253,8 @@ void iwl_recover_from_statistics(struct return; } } - if (priv->cfg->ops->lib->check_plcp_health) { + if (mod_params->plcp_check && + priv->cfg->ops->lib->check_plcp_health) { if (!priv->cfg->ops->lib->check_plcp_health( priv, pkt)) { /* _______________________________________________ kernel mailing list kernel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/kernel
