linux-kernel - Re: [Outreachy kernel] [PATCH 4/4] staging: rtl8723bs: Change the type and use of a variable

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Date:   Sat, 10 Apr 2021 12:03:14 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...ia.fr>
To:     Julia Lawall <julia.lawall@...ia.fr>
cc:     Greg KH <gregkh@...uxfoundation.org>,
        "Fabio M. De Francesco" <fmdefrancesco@...il.com>,
        outreachy-kernel@...glegroups.com, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [Outreachy kernel] [PATCH 4/4] staging: rtl8723bs: Change the
 type and use of a variable



On Sat, 10 Apr 2021, Julia Lawall wrote:

>
>
> On Sat, 10 Apr 2021, Greg KH wrote:
>
> > On Sat, Apr 10, 2021 at 11:22:32AM +0200, Fabio M. De Francesco wrote:
> > > Change the type of fw_current_in_ps_mode from u8 to bool, because
> > > it is used everywhere as a bool and, accordingly, it should be
> > > declared as a bool. Shorten the controlling
> > > expression of an 'if' statement.
> > >
> > > Signed-off-by: Fabio M. De Francesco <fmdefrancesco@...il.com>
> > > ---
> > >  drivers/staging/rtl8723bs/hal/hal_intf.c        | 2 +-
> > >  drivers/staging/rtl8723bs/include/rtw_pwrctrl.h | 2 +-
> > >  2 files changed, 2 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/drivers/staging/rtl8723bs/hal/hal_intf.c b/drivers/staging/rtl8723bs/hal/hal_intf.c
> > > index 96fe172ced8d..8dc4dd8c6d4c 100644
> > > --- a/drivers/staging/rtl8723bs/hal/hal_intf.c
> > > +++ b/drivers/staging/rtl8723bs/hal/hal_intf.c
> > > @@ -348,7 +348,7 @@ void rtw_hal_dm_watchdog(struct adapter *padapter)
> > >
> > >  void rtw_hal_dm_watchdog_in_lps(struct adapter *padapter)
> > >  {
> > > -	if (adapter_to_pwrctl(padapter)->fw_current_in_ps_mode == true) {
> > > +	if (adapter_to_pwrctl(padapter)->fw_current_in_ps_mode) {
> > >  		if (padapter->HalFunc.hal_dm_watchdog_in_lps)
> > >  			padapter->HalFunc.hal_dm_watchdog_in_lps(padapter); /* this function caller is in interrupt context */
> > >  	}
> > > diff --git a/drivers/staging/rtl8723bs/include/rtw_pwrctrl.h b/drivers/staging/rtl8723bs/include/rtw_pwrctrl.h
> > > index 0a48f1653be5..0767dbb84199 100644
> > > --- a/drivers/staging/rtl8723bs/include/rtw_pwrctrl.h
> > > +++ b/drivers/staging/rtl8723bs/include/rtw_pwrctrl.h
> > > @@ -203,7 +203,7 @@ struct pwrctrl_priv {
> > >  	u8 LpsIdleCount;
> > >  	u8 power_mgnt;
> > >  	u8 org_power_mgnt;
> > > -	u8 fw_current_in_ps_mode;
> > > +	bool fw_current_in_ps_mode;
> > >  	unsigned long	DelayLPSLastTimeStamp;
> > >  	s32		pnp_current_pwr_state;
> > >  	u8 pnp_bstop_trx;
> >
> > If this is only checked, how can it ever be true?  Who ever sets this
> > value?
>
> I think it's already updated everywhere with true and false, so there is
> nothing to change.  But it would be good to make that clear in the log
> message.

Oops, I was thinking of the field, not the local variable.
If the field is never set, that seems like a big problem...

julia

>
> julia
>
> >
> > thanks,
> >
> > greg k-h
> >
> > --
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> >
>