linux-kernel - Re: [PATCH] staging: rtl8723bs: remove unused pHalData variable

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Message-ID: <ZCBGjp7bJBWWztOG@kroah.com>
Date:   Sun, 26 Mar 2023 15:20:14 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Tom Rix <trix@...hat.com>
Cc:     Nam Cao <namcaov@...il.com>, nathan@...nel.org,
        ndesaulniers@...gle.com, artur.bujdoso@...il.com,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: Re: [PATCH] staging: rtl8723bs: remove unused pHalData variable

On Sun, Mar 26, 2023 at 06:13:16AM -0700, Tom Rix wrote:
> 
> On 3/26/23 5:55 AM, Greg KH wrote:
> > On Sun, Mar 26, 2023 at 02:46:52PM +0200, Nam Cao wrote:
> > > On Sun, Mar 26, 2023 at 08:23:21AM -0400, Tom Rix wrote:
> > > > clang with W=1 reports
> > > > drivers/staging/rtl8723bs/hal/hal_btcoex.c:1182:23: error: variable
> > > >    'pHalData' set but not used [-Werror,-Wunused-but-set-variable]
> > > >          struct hal_com_data *pHalData;
> > > >                               ^
> > > > This variable is not used so remove it.
> > > > 
> > > > Signed-off-by: Tom Rix <trix@...hat.com>
> > > > ---
> > > >   drivers/staging/rtl8723bs/hal/hal_btcoex.c | 4 ----
> > > >   1 file changed, 4 deletions(-)
> > > > 
> > > > diff --git a/drivers/staging/rtl8723bs/hal/hal_btcoex.c b/drivers/staging/rtl8723bs/hal/hal_btcoex.c
> > > > index e36f8c369a04..0cb2adcc1f78 100644
> > > > --- a/drivers/staging/rtl8723bs/hal/hal_btcoex.c
> > > > +++ b/drivers/staging/rtl8723bs/hal/hal_btcoex.c
> > > > @@ -1179,10 +1179,6 @@ bool hal_btcoex_IsBtDisabled(struct adapter *padapter)
> > > >   void hal_btcoex_SetChipType(struct adapter *padapter, u8 chipType)
> > > >   {
> > > > -	struct hal_com_data *pHalData;
> > > > -
> > > > -
> > > > -	pHalData = GET_HAL_DATA(padapter);
> > > >   }
> > > If this function doesn't do anything, does it not make more sense to
> > > just remove this function entirely?
> > This function is already removed in linux-next, so it doesn't matter :)
> 
> My patch is against linux-next from tag next-20230324

Ah, ok, well it will be gone in the next one, as this is already gone in
my tree.

thanks,

greg k-h