Re: [PATCH 2/5] staging: rtl8723bs: replace FIELD_OFFSET usage with offsetof

Dan Carpenter
2025-11-24T09:45:52Z

On Mon, Nov 24, 2025 at 09:17:54AM +0000, david laight wrote:
> On Mon, 24 Nov 2025 11:08:35 +0300
> Dan Carpenter <dan.carpenter@linaro.org> wrote:
>
> > On Sat, Nov 22, 2025 at 05:45:52PM +0000, Navaneeth K wrote:
> > > Replace usage of the custom FIELD_OFFSET macro with the standard
> > > offsetof() macro in drv_types.h. This improves code readability and
> > > standardization.
> > >
> > > Signed-off-by: Navaneeth K <knavaneeth786@gmail.com>
> > > ---
> > > drivers/staging/rtl8723bs/include/drv_types.h | 4 ++--
> > > 1 file changed, 2 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/drivers/staging/rtl8723bs/include/drv_types.h b/drivers/staging/rtl8723bs/include/drv_types.h
> > > index dd9018aa4ee5..47cabf8707f6 100644
> > > --- a/drivers/staging/rtl8723bs/include/drv_types.h
> > > +++ b/drivers/staging/rtl8723bs/include/drv_types.h
> > > @@ -173,9 +173,9 @@ struct registry_priv {
> > >
> > >
> > > /* For registry parameters */
> > > -#define RGTRY_OFT(field) ((u32)FIELD_OFFSET(struct registry_priv, field))
> > > +#define RGTRY_OFT(field) ((u32)offsetof(struct registry_priv, field))
> >
> > These casts to u32 are bogus garbage. Delete them.
>
> Dunno - they might be needed (or have been needed) to stop min()
> complaining about type mismatch.
> They can also stop expressions being evaluated as 64bit (on 64bit)
> which may reduce code size.
> But that is a bit subtle...

Actually the macros are unused. Just delete them entirely.

regards,
dan carpenter