netdev - Re: [PATCH] net:rtlwifi:move spin_lock_bh to spin

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Date:   Wed, 20 Mar 2019 02:31:24 +0000
From:   Pkshih <pkshih@...ltek.com>
To:     "kvalo@...eaurora.org" <kvalo@...eaurora.org>,
        "chongguiguzi@...il.com" <chongguiguzi@...il.com>
CC:     "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] net:rtlwifi:move spin_lock_bh to spin_lock in tasklet

On Tue, 2019-03-19 at 22:31 +0800, Jeff Xie wrote:
> It is unnecessary to call spin_lock_bh in a tasklet.
> 
> Signed-off-by: Jeff Xie <chongguiguzi@...il.com>
> 
> ---
>  drivers/net/wireless/realtek/rtlwifi/pci.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/wireless/realtek/rtlwifi/pci.c
> b/drivers/net/wireless/realtek/rtlwifi/pci.c
> index 48ca521..4055e0a 100644
> --- a/drivers/net/wireless/realtek/rtlwifi/pci.c
> +++ b/drivers/net/wireless/realtek/rtlwifi/pci.c
> @@ -499,16 +499,16 @@ static void _rtl_pci_tx_chk_waitq(struct ieee80211_hw
> *hw)
>  
>  			memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
>  
> -			spin_lock_bh(&rtlpriv->locks.waitq_lock);
> +			spin_lock(&rtlpriv->locks.waitq_lock);
>  			if (!skb_queue_empty(&mac->skb_waitq[tid]) &&
>  			    (ring->entries - skb_queue_len(&ring->queue) >
>  			     rtlhal->max_earlymode_num)) {
>  				skb = skb_dequeue(&mac->skb_waitq[tid]);
>  			} else {
> -				spin_unlock_bh(&rtlpriv->locks.waitq_lock);
> +				spin_unlock(&rtlpriv->locks.waitq_lock);
>  				break;
>  			}
> -			spin_unlock_bh(&rtlpriv->locks.waitq_lock);
> +			spin_unlock(&rtlpriv->locks.waitq_lock);
>  
>  			/* Some macaddr can't do early mode. like
>  			 * multicast/broadcast/no_qos data

The mail subject should be 'rtlwifi: move ....', and the other looks good to me.

Acked-by: Ping-Ke Shih <pkshih@...ltek.com>