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 <[email protected]> Cc: [email protected] # 2.6.35+ Signed-off-by: Stanislaw Gruszka <[email protected]> --- v1 -> v2 Instead of tuning threshold remove the check completely This is minimal fix, without any additional code removal (what introduce one compile warning). I will remove dead code after Intel push they current driver split work, to do not create merge problems now. Patch also does not apply cleanly on 2.6.35, I will provide additional -stable patch when this one hit mainline. diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index 58213e7..5b6932c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -2734,7 +2734,6 @@ static struct iwl_lib_ops iwl3945_lib = { .isr_ops = { .isr = iwl_isr_legacy, }, - .check_plcp_health = iwl3945_good_plcp_health, .debugfs_ops = { .rx_stats_read = iwl3945_ucode_rx_stats_read, _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
