Re: [PATCH wpan-next v2 2/2] net: ieee802154: Move the address structure earlier and provide a kdoc

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Hi,

On Mon, Jan 31, 2022 at 9:09 AM Miquel Raynal <miquel.raynal@xxxxxxxxxxx> wrote:
>
> Hi Miquel,
>
> miquel.raynal@xxxxxxxxxxx wrote on Mon, 31 Jan 2022 11:46:45 +0100:
>
> > Hi Alexander,
> >
> > alex.aring@xxxxxxxxx wrote on Sun, 30 Jan 2022 16:09:00 -0500:
> >
> > > Hi,
> > >
> > > On Fri, Jan 28, 2022 at 6:20 AM Miquel Raynal <miquel.raynal@xxxxxxxxxxx> wrote:
> > > >
> > > > From: David Girault <david.girault@xxxxxxxxx>
> > > >
> > > > Move the address structure earlier in the cfg802154.h header in order to
> > > > use it in subsequent additions. Give this structure a header to better
> > > > explain its content.
> > > >
> > > > Signed-off-by: David Girault <david.girault@xxxxxxxxx>
> > > > [miquel.raynal@xxxxxxxxxxx: Isolate this change from a bigger commit and
> > > >                             reword the comment]
> > > > Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
> > > > ---
> > > >  include/net/cfg802154.h | 28 +++++++++++++++++++---------
> > > >  1 file changed, 19 insertions(+), 9 deletions(-)
> > > >
> > > > diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
> > > > index 4491e2724ff2..0b8b1812cea1 100644
> > > > --- a/include/net/cfg802154.h
> > > > +++ b/include/net/cfg802154.h
> > > > @@ -29,6 +29,25 @@ struct ieee802154_llsec_key_id;
> > > >  struct ieee802154_llsec_key;
> > > >  #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
> > > >
> > > > +/**
> > > > + * struct ieee802154_addr - IEEE802.15.4 device address
> > > > + * @mode: Address mode from frame header. Can be one of:
> > > > + *        - @IEEE802154_ADDR_NONE
> > > > + *        - @IEEE802154_ADDR_SHORT
> > > > + *        - @IEEE802154_ADDR_LONG
> > > > + * @pan_id: The PAN ID this address belongs to
> > > > + * @short_addr: address if @mode is @IEEE802154_ADDR_SHORT
> > > > + * @extended_addr: address if @mode is @IEEE802154_ADDR_LONG
> > > > + */
> > > > +struct ieee802154_addr {
> > > > +       u8 mode;
> > > > +       __le16 pan_id;
> > > > +       union {
> > > > +               __le16 short_addr;
> > > > +               __le64 extended_addr;
> > > > +       };
> > > > +};
> > > > +
> > > >  struct cfg802154_ops {
> > > >         struct net_device * (*add_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
> > > >                                                            const char *name,
> > > > @@ -277,15 +296,6 @@ static inline void wpan_phy_net_set(struct wpan_phy *wpan_phy, struct net *net)
> > > >         write_pnet(&wpan_phy->_net, net);
> > > >  }
> > > >
> > > > -struct ieee802154_addr {
> > > > -       u8 mode;
> > > > -       __le16 pan_id;
> > > > -       union {
> > > > -               __le16 short_addr;
> > > > -               __le64 extended_addr;
> > > > -       };
> > > > -};
> > > > -
> > >
> > > I don't see the sense of moving this around? Is there a compilation
> > > warning/error?
> >
> > Not yet but we will need to move this structure around soon. This
> > commit is like a 'preparation' step for the changes coming later.
> >
> > I can move this later if you prefer.
>
> Actually there is not actual need for moving this structure anymore.
> The number of changes applied on top of the original series have turned
> that move unnecessary. I still believe however that structures should,
> as far as possible, be defined at the top of headers files, instead of
> be defined right before where they will be immediately used when
> introduced. I'll cancel the move but I'll keep the addition of the kdoc
> which I think is useful.
>
ok.

- Alex



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