linux-kernel - Re: [PATCH] staging: r8188eu: remove redundant variable hoffset

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Date:   Tue, 7 Sep 2021 23:10:02 +0100
From:   Phillip Potter <phil@...lpotter.co.uk>
To:     Colin King <colin.king@...onical.com>
Cc:     Larry Finger <Larry.Finger@...inger.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: r8188eu: remove redundant variable hoffset

On Tue, Sep 07, 2021 at 09:53:02AM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> Variable hoffset is being assigned values but it is never being
> used. The variable is redundant and can be removed.
> 
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  drivers/staging/r8188eu/hal/rtl8188e_hal_init.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/staging/r8188eu/hal/rtl8188e_hal_init.c b/drivers/staging/r8188eu/hal/rtl8188e_hal_init.c
> index 14758361960c..7c12ca548c47 100644
> --- a/drivers/staging/r8188eu/hal/rtl8188e_hal_init.c
> +++ b/drivers/staging/r8188eu/hal/rtl8188e_hal_init.c
> @@ -1143,7 +1143,7 @@ static u16 hal_EfuseGetCurrentSize_8188e(struct adapter *pAdapter, bool bPseudoT
>  {
>  	int	bContinual = true;
>  	u16	efuse_addr = 0;
> -	u8 hoffset = 0, hworden = 0;
> +	u8 hworden = 0;
>  	u8 efuse_data, word_cnts = 0;
>  
>  	if (bPseudoTest)
> @@ -1156,18 +1156,15 @@ static u16 hal_EfuseGetCurrentSize_8188e(struct adapter *pAdapter, bool bPseudoT
>  	       AVAILABLE_EFUSE_ADDR(efuse_addr)) {
>  		if (efuse_data != 0xFF) {
>  			if ((efuse_data & 0x1F) == 0x0F) {		/* extended header */
> -				hoffset = efuse_data;
>  				efuse_addr++;
>  				efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data, bPseudoTest);
>  				if ((efuse_data & 0x0F) == 0x0F) {
>  					efuse_addr++;
>  					continue;
>  				} else {
> -					hoffset = ((hoffset & 0xE0) >> 5) | ((efuse_data & 0xF0) >> 1);
>  					hworden = efuse_data & 0x0F;
>  				}
>  			} else {
> -				hoffset = (efuse_data >> 4) & 0x0F;
>  				hworden =  efuse_data & 0x0F;
>  			}
>  			word_cnts = Efuse_CalculateWordCnts(hworden);
> -- 
> 2.32.0
> 

Many thanks Colin, looks good to me.

Acked-by: Phillip Potter <phil@...lpotter.co.uk>

Regards,
Phil