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

[Navaneeth K]

Hi Dan, Hi David,

Thanks for the clarification.

I’ll remove the unused macro entirely in v2 instead of adjusting the cast.

Regards,
Navaneeth K

On 24-11-2025 17:43, david laight wrote:
> On Mon, 24 Nov 2025 12:45:46 +0300
> Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
>
> > 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@xxxxxxxxxx> 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@xxxxxxxxx>
> > > > > ---
> > > > >   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.
> Sounds good to me :-)
>
> > regards,
> > dan carpenter