iwl3945: remove plcp check

commit c91d01556f52255a31575be0cb1981c92a2a5028 upstream.

Patch fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=654599

Many users report very low speed problem on 3945 devices,
this patch fixes problem, but only for some of them.

For unknown reason, sometimes after hw scanning, device is not able
to receive frames at high rate. Since plcp health check may request
hw scan to "reset radio", performance problem start to be observable
after update kernel to .35, where plcp check was introduced.

Bug reporter confirmed that removing plcp check fixed problem for him.

Reported-and-tested-by: SilvioTO <silviotoya@yahoo.it>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 2a9480dab2d51ade161ff614e4f5ea4103890a3f..7b4fc94fee0a74e0ba676fafea2815fa5a50bbae 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -2837,7 +2837,6 @@ static struct iwl_lib_ops iwl3945_lib = {
        .config_ap = iwl3945_config_ap,
        .manage_ibss_station = iwl3945_manage_ibss_station,
        .recover_from_tx_stall = iwl_bg_monitor_recover,
-       .check_plcp_health = iwl3945_good_plcp_health,
 
        .debugfs_ops = {
                .rx_stats_read = iwl3945_ucode_rx_stats_read,