linux-kernel - Re: [PATCH] staging: r8188eu: replace ternary operator with min, max, abs macros

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Date:   Mon, 31 Oct 2022 22:59:01 +0100
From:   Philipp Hortmann <philipp.g.hortmann@...il.com>
To:     Michael Straube <straube.linux@...il.com>,
        gregkh@...uxfoundation.org
Cc:     Larry.Finger@...inger.net, phil@...lpotter.co.uk,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: r8188eu: replace ternary operator with min, max,
 abs macros

On 10/31/22 16:37, Michael Straube wrote:
> Replace some ternary operators with the min(), max() or abs() macros
> to improve readability.
> 
> Signed-off-by: Michael Straube <straube.linux@...il.com>
> ---
>   drivers/staging/r8188eu/core/rtw_xmit.c      | 3 +--
>   drivers/staging/r8188eu/hal/HalPhyRf_8188e.c | 2 +-
>   drivers/staging/r8188eu/hal/odm_RTL8188E.c   | 4 ++--
>   3 files changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/staging/r8188eu/core/rtw_xmit.c b/drivers/staging/r8188eu/core/rtw_xmit.c
> index 4f8220428328..bd6c1a401c59 100644
> --- a/drivers/staging/r8188eu/core/rtw_xmit.c
> +++ b/drivers/staging/r8188eu/core/rtw_xmit.c
> @@ -476,8 +476,7 @@ static uint rtw_pktfile_read(struct pkt_file *pfile, u8 *rmem, uint rlen)
>   {
>   	uint len;
>   
> -	len = rtw_remainder_len(pfile);
> -	len = (rlen > len) ? len : rlen;
> +	len = min(rtw_remainder_len(pfile), rlen);
>   
>   	if (rmem)
>   		skb_copy_bits(pfile->pkt, pfile->buf_len - pfile->pkt_len, rmem, len);
> diff --git a/drivers/staging/r8188eu/hal/HalPhyRf_8188e.c b/drivers/staging/r8188eu/hal/HalPhyRf_8188e.c
> index 60cdfcf80daa..622f95d3f2ed 100644
> --- a/drivers/staging/r8188eu/hal/HalPhyRf_8188e.c
> +++ b/drivers/staging/r8188eu/hal/HalPhyRf_8188e.c
> @@ -583,7 +583,7 @@ static bool phy_SimularityCompare_8188E(
>   			tmp2 = resulta[c2][i];
>   		}
>   
> -		diff = (tmp1 > tmp2) ? (tmp1 - tmp2) : (tmp2 - tmp1);
> +		diff = abs(tmp1 - tmp2);
>   
>   		if (diff > MAX_TOLERANCE) {
>   			if ((i == 2 || i == 6) && !sim_bitmap) {
> diff --git a/drivers/staging/r8188eu/hal/odm_RTL8188E.c b/drivers/staging/r8188eu/hal/odm_RTL8188E.c
> index dd9c8291f025..f3f4074d4316 100644
> --- a/drivers/staging/r8188eu/hal/odm_RTL8188E.c
> +++ b/drivers/staging/r8188eu/hal/odm_RTL8188E.c
> @@ -199,7 +199,7 @@ static void odm_HWAntDiv(struct odm_dm_struct *dm_odm)
>   			Aux_RSSI = (dm_fat_tbl->AuxAnt_Cnt[i] != 0) ? (dm_fat_tbl->AuxAnt_Sum[i] / dm_fat_tbl->AuxAnt_Cnt[i]) : 0;
>   			TargetAnt = (Main_RSSI >= Aux_RSSI) ? MAIN_ANT : AUX_ANT;
>   			/* 2 Select MaxRSSI for DIG */
> -			LocalMaxRSSI = (Main_RSSI > Aux_RSSI) ? Main_RSSI : Aux_RSSI;
> +			LocalMaxRSSI = max(Main_RSSI, Aux_RSSI);
>   			if ((LocalMaxRSSI > AntDivMaxRSSI) && (LocalMaxRSSI < 40))
>   				AntDivMaxRSSI = LocalMaxRSSI;
>   			if (LocalMaxRSSI > MaxRSSI)
> @@ -211,7 +211,7 @@ static void odm_HWAntDiv(struct odm_dm_struct *dm_odm)
>   			else if ((dm_fat_tbl->RxIdleAnt == AUX_ANT) && (Aux_RSSI == 0))
>   				Aux_RSSI = Main_RSSI;
>   
> -			LocalMinRSSI = (Main_RSSI > Aux_RSSI) ? Aux_RSSI : Main_RSSI;
> +			LocalMinRSSI = min(Main_RSSI, Aux_RSSI);
>   			if (LocalMinRSSI < MinRSSI) {
>   				MinRSSI = LocalMinRSSI;
>   				RxIdleAnt = TargetAnt;

Tested-by: Philipp Hortmann <philipp.g.hortmann@...il.com> # Edimax N150