linux-kernel - Re: [Outreachy kernel] [PATCH] staging: rtl8723bs: core: Remove true and false comparison

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Date:   Tue, 19 Oct 2021 20:57:59 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...ia.fr>
To:     Kushal Kothari <kushalkothari285@...il.com>
cc:     gregkh@...uxfoundation.org, fabioaiuto83@...il.com,
        marcocesati@...il.com, dan.carpenter@...cle.com,
        ross.schm.dev@...il.com, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org, outreachy-kernel@...glegroups.com,
        mike.rapoport@...il.com
Subject: Re: [Outreachy kernel] [PATCH] staging: rtl8723bs: core:  Remove
 true and false comparison



On Tue, 19 Oct 2021, Kushal Kothari wrote:

> Remove comparison to true and false in if statement.
> Issue found with checkpatch.pl.
> CHECK: Using comparison to true is error prone
> CHECK: Using comparison to false is error prone
>
> Signed-off-by: Kushal Kothari <kushalkothari285@...il.com>
> ---
>  drivers/staging/rtl8723bs/core/rtw_cmd.c | 16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/staging/rtl8723bs/core/rtw_cmd.c b/drivers/staging/rtl8723bs/core/rtw_cmd.c
> index efc9b1974e38..b473f1d1ce08 100644
> --- a/drivers/staging/rtl8723bs/core/rtw_cmd.c
> +++ b/drivers/staging/rtl8723bs/core/rtw_cmd.c
> @@ -309,8 +309,8 @@ int rtw_cmd_filter(struct cmd_priv *pcmdpriv, struct cmd_obj *cmd_obj)
>  	if (cmd_obj->cmdcode == GEN_CMD_CODE(_SetChannelPlan))
>  		bAllow = true;
>
> -	if ((pcmdpriv->padapter->hw_init_completed == false && bAllow == false)
> -		|| atomic_read(&(pcmdpriv->cmdthd_running)) == false	/* com_thread not running */
> +	if ((!pcmdpriv->padapter->hw_init_completed && !bAllow)
> +		|| !atomic_read(&(pcmdpriv->cmdthd_running))	/* com_thread not running */
>  	)
>  		return _FAIL;
>
> @@ -407,7 +407,7 @@ int rtw_cmd_thread(void *context)
>  			break;
>  		}
>
> -		if ((padapter->bDriverStopped == true) || (padapter->bSurpriseRemoved == true)) {
> +		if ((padapter->bDriverStopped) || (padapter->bSurpriseRemoved)) {

The parentheses are pretty useless once you have removed the comparison.

julia

>  			netdev_dbg(padapter->pnetdev,
>  				   "%s: DriverStopped(%d) SurpriseRemoved(%d) break at line %d\n",
>  				   __func__, padapter->bDriverStopped,
> @@ -430,7 +430,7 @@ int rtw_cmd_thread(void *context)
>  			continue;
>
>  _next:
> -		if ((padapter->bDriverStopped == true) || (padapter->bSurpriseRemoved == true)) {
> +		if ((padapter->bDriverStopped) || (padapter->bSurpriseRemoved)) {
>  			netdev_dbg(padapter->pnetdev,
>  				   "%s: DriverStopped(%d) SurpriseRemoved(%d) break at line %d\n",
>  				   __func__, padapter->bDriverStopped,
> @@ -927,7 +927,7 @@ u8 rtw_setstakey_cmd(struct adapter *padapter, struct sta_info *sta, u8 unicast_
>  	else
>  		GET_ENCRY_ALGO(psecuritypriv, sta, psetstakey_para->algorithm, false);
>
> -	if (unicast_key == true)
> +	if (unicast_key)
>  		memcpy(&psetstakey_para->key, &sta->dot118021x_UncstKey, 16);
>  	else
>  		memcpy(&psetstakey_para->key, &psecuritypriv->dot118021XGrpKey[psecuritypriv->dot118021XGrpKeyid].skey, 16);
> @@ -1283,7 +1283,7 @@ u8 traffic_status_watchdog(struct adapter *padapter, u8 from_timer)
>  			(pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod > 2)) {
>  			bEnterPS = false;
>
> -			if (bBusyTraffic == true) {
> +			if (bBusyTraffic) {
>  				if (pmlmepriv->LinkDetectInfo.TrafficTransitionCount <= 4)
>  					pmlmepriv->LinkDetectInfo.TrafficTransitionCount = 4;
>
> @@ -1619,7 +1619,7 @@ static void rtw_chk_hi_queue_hdl(struct adapter *padapter)
>
>  	rtw_hal_get_hwreg(padapter, HW_VAR_CHK_HI_QUEUE_EMPTY, &empty);
>
> -	while (false == empty && jiffies_to_msecs(jiffies - start) < g_wait_hiq_empty) {
> +	while (!empty && jiffies_to_msecs(jiffies - start) < g_wait_hiq_empty) {
>  		msleep(100);
>  		rtw_hal_get_hwreg(padapter, HW_VAR_CHK_HI_QUEUE_EMPTY, &empty);
>  	}
> @@ -2054,7 +2054,7 @@ void rtw_setassocsta_cmdrsp_callback(struct adapter *padapter,  struct cmd_obj *
>
>  	spin_lock_bh(&pmlmepriv->lock);
>
> -	if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) && (check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true))
> +	if ((check_fwstate(pmlmepriv, WIFI_MP_STATE)) && (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)))
>  		_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
>
>  	set_fwstate(pmlmepriv, _FW_LINKED);
> --
> 2.25.1
>
> --
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>