linux-kernel - RE: [ipw3945-devel] [PATCH 2/5] iwlwifi: iwl3945 synchronize interruptand tasklet for down iwlwifi

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Message-ID: <D936D925018D154694D8A362EEB08920035CCD70@orsmsx416.amr.corp.intel.com>
Date:	Thu, 10 Jan 2008 11:10:35 -0800
From:	"Chatre, Reinette" <reinette.chatre@...el.com>
To:	"Joonwoo Park" <joonwpark81@...il.com>,
	"Zhu, Yi" <yi.zhu@...el.com>, <netdev@...r.kernel.org>
Cc:	<linux-wireless@...r.kernel.org>,
	"lkml" <linux-kernel@...r.kernel.org>,
	<ipw3945-devel@...ts.sourceforge.net>
Subject: RE: [ipw3945-devel] [PATCH 2/5] iwlwifi: iwl3945 synchronize interruptand tasklet for down iwlwifi

On , Joonwoo Park  wrote:

> --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
> +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
> @@ -6262,6 +6262,10 @@ static void __iwl_down(struct iwl_priv *priv)
> 	/* tell the device to stop sending interrupts */
> 	iwl_disable_interrupts(priv);
> 
> +	/* synchronize irq and tasklet */
> +	synchronize_irq(priv->pci_dev->irq);
> +	tasklet_kill(&priv->irq_tasklet);
> +

Could synchronize_irq() be moved into iwl_disable_interrupts() ? I am
also wondering if we cannot call tasklet_kill() before
iwl_disable_interrupts() ... thus preventing it from being scheduled
when we are going down. 

Reinette
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