linux-kernel - Re: [Outreachy kernel] Re: [PATCH 7/9] staging: rtl8723bs: Fix incorrect type in argument warnings

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Date:   Tue, 12 Nov 2019 20:12:26 -0500
From:   "Javier F. Arias" <jarias.linux@...il.com>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, outreachy-kernel@...glegroups.com
Subject: Re: [Outreachy kernel] Re: [PATCH 7/9] staging: rtl8723bs: Fix
 incorrect type in argument warnings

On Tue, Nov 12, 2019 at 09:33:43PM +0100, Greg KH wrote:
> On Tue, Nov 12, 2019 at 11:55:27AM -0500, Javier F. Arias wrote:
> > Fix incorrect type in declarations to solve the 'incorrect
> > type in argument 3' warnings in the rtw_get_ie function calls.
> > Issue found by Sparse.
> > 
> > Signed-off-by: Javier F. Arias <jarias.linux@...il.com>
> > ---
> >  drivers/staging/rtl8723bs/os_dep/ioctl_linux.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
> > index db6528a01229..bb63295e8d4e 100644
> > --- a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
> > +++ b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
> > @@ -83,7 +83,7 @@ static char *translate_scan(struct adapter *padapter,
> >  {
> >  	struct iw_event iwe;
> >  	u16 cap;
> > -	u32 ht_ielen = 0;
> > +	sint ht_ielen = 0;
> 
> sint?  Ick, try fixing up the function call itself please.
> 
> thanks,
> 
> greg k-h

Hello Greg,

I found that rtw_get_ie is called 62 times and the passed argument
can be declared as sint, uint, u32, u8 and probably a couple more.
I'll drop this patch for now and check more carefully if this fix
would require more changes, as changing the argument type wouldn't
solve the warning described in the commit.

> 
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