Re: [PATCH] staging: rtl8712: remove unused variables

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On Sun, Oct 26, 2014 at 06:03:33PM +0530, Sudip Mukherjee wrote:
> @@ -262,7 +257,7 @@ static u8 rtl8712_dl_fw(struct _adapter *padapter)
>  		if (tmp8_a != (tmp8|BIT(2)))
>  			goto exit_fail;
>  
> -		tmp32 = r8712_read32(padapter, TCR);
> +		r8712_read32(padapter, TCR);

I wonder if we actually need to call r8712_read32() here?  It's not
clear.  The changelog should say one way or the other.  Maybe something
like "I left a call to r8712_read32(padapter, TCR) because I didn't know
if it had side effects".  When you note down questions you have in the
changelog that helps reviewers.

> --- a/drivers/staging/rtl8712/rtl871x_pwrctrl.c
> +++ b/drivers/staging/rtl8712/rtl871x_pwrctrl.c
> @@ -156,11 +156,9 @@ static void rpwm_workitem_callback(struct work_struct *work)
>  				       struct pwrctrl_priv, rpwm_workitem);
>  	struct _adapter *padapter = container_of(pwrpriv,
>  				    struct _adapter, pwrctrlpriv);
> -	u8 cpwm = pwrpriv->cpwm;
> -
>  	if (pwrpriv->cpwm != pwrpriv->rpwm) {
>  		_enter_pwrlock(&pwrpriv->lock);
> -		cpwm = r8712_read8(padapter, SDIO_HCPWM);
> +		r8712_read8(padapter, SDIO_HCPWM);

Same here.

>  		pwrpriv->rpwm_retry = 1;
>  		r8712_set_rpwm(padapter, pwrpriv->rpwm);
>  		up(&pwrpriv->lock);

regards,
dan carpenter
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