Re: [PATCH 2/2] backports: update backport/backport-include/net/netlink.h

Right, I'll submit v2 soon.

Hauke Mehrtens <[email protected]> 於 2019年3月20日 週三 上午5:50寫道：
>
> On 3/19/19 7:09 AM, AceLan Kao wrote:
> > Add new macros introduced from
> >    23323289b154 netlink: reduce NLA_POLICY_NESTED{,_ARRAY} arguments
> >
> > Signed-off-by: AceLan Kao <[email protected]>
> > ---
> >  backport/backport-include/net/netlink.h | 8 ++++++--
> >  1 file changed, 6 insertions(+), 2 deletions(-)
> >
> > diff --git a/backport/backport-include/net/netlink.h b/backport/backport-include/net/netlink.h
> > index 4af73631..6f6630ae 100644
> > --- a/backport/backport-include/net/netlink.h
> > +++ b/backport/backport-include/net/netlink.h
> > @@ -59,10 +59,14 @@ struct backport_nla_policy {
> >  #define NLA_POLICY_ETH_ADDR          NLA_POLICY_EXACT_LEN(ETH_ALEN)
> >  #define NLA_POLICY_ETH_ADDR_COMPAT   NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN)
> >
> > -#define NLA_POLICY_NESTED(maxattr, policy) \
> > +#define _NLA_POLICY_NESTED(maxattr, policy) \
> >       { .type = NLA_NESTED, .validation_data = policy, .len = maxattr }
> > -#define NLA_POLICY_NESTED_ARRAY(maxattr, policy) \
> > +#define _NLA_POLICY_NESTED_ARRAY(maxattr, policy) \
> >       { .type = NLA_NESTED_ARRAY, .validation_data = policy, .len = maxattr }
> > +#define NLA_POLICY_NESTED(policy) \
> > +     _NLA_POLICY_NESTED(ARRAY_SIZE(policy) - 1, policy)
> > +#define NLA_POLICY_NESTED_ARRAY(policy) \
> > +     _NLA_POLICY_NESTED_ARRAY(ARRAY_SIZE(policy) - 1, policy)
> >
> >  #define __NLA_ENSURE(condition) (sizeof(char[1 - 2*!(condition)]) - 1)
> >  #define NLA_ENSURE_INT_TYPE(tp)                              \
> >
>
> This is only added for kernel < 4.20, there is a ifdef around, there is
> also a backport needed for kernel 4.20 till 5.0.
>
> Hauke
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