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Commit 91457eaa authored by Cathy Luo's avatar Cathy Luo Committed by Kalle Valo
Browse files

mwifiex: reduce spinlock usage in main process 



We will reset more_task_flag at the end of main process
routine. This optimization will help to remove spinlock
operations at couple of places in the code.

Signed-off-by: default avatarCathy Luo <cluo@marvell.com>
Signed-off-by: default avatarAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent f022ea52

drivers/net/wireless/mwifiex/main.c

+5 −6
Original line number Diff line number Diff line
@@ -231,11 +231,10 @@ int mwifiex_main_process(struct mwifiex_adapter *adapter) 
		goto exit_main_proc;

	} else {

		adapter->mwifiex_processing = true;

		spin_unlock_irqrestore(&adapter->main_proc_lock, flags);

	}

process_start:

	do {

		adapter->more_task_flag = false;

		spin_unlock_irqrestore(&adapter->main_proc_lock, flags);

		if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) ||

		    (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY))

			break;
@@ -275,7 +274,6 @@ int mwifiex_main_process(struct mwifiex_adapter *adapter) 
			adapter->pm_wakeup_fw_try = true;

			mod_timer(&adapter->wakeup_timer, jiffies + (HZ*3));

			adapter->if_ops.wakeup(adapter);

			spin_lock_irqsave(&adapter->main_proc_lock, flags);

			continue;

		}
@@ -335,7 +333,6 @@ int mwifiex_main_process(struct mwifiex_adapter *adapter) 
		    (adapter->ps_state == PS_STATE_PRE_SLEEP) ||

		    (adapter->ps_state == PS_STATE_SLEEP_CFM) ||

		    adapter->tx_lock_flag){

			spin_lock_irqsave(&adapter->main_proc_lock, flags);

			continue;

		}
@@ -386,12 +383,14 @@ int mwifiex_main_process(struct mwifiex_adapter *adapter) 
			}

			break;

		}

		spin_lock_irqsave(&adapter->main_proc_lock, flags);

	} while (true);



	spin_lock_irqsave(&adapter->main_proc_lock, flags);

	if (adapter->more_task_flag)

	if (adapter->more_task_flag) {

		adapter->more_task_flag = false;

		spin_unlock_irqrestore(&adapter->main_proc_lock, flags);

		goto process_start;

	}

	adapter->mwifiex_processing = false;

	spin_unlock_irqrestore(&adapter->main_proc_lock, flags);