Hi,
On Fri, 21 May 2021 09:12:22 +1000
Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> Hi all,
>
> On Wed, 19 May 2021 14:05:32 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> >
> > On Wed, 19 May 2021 09:56:27 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> > >
> > > Today's linux-next merge of the netfilter-next tree got a conflict in:
> > >
> > > net/netfilter/nft_set_pipapo.c
> > >
> > > between commit:
> > >
> > > f0b3d338064e ("netfilter: nft_set_pipapo_avx2: Add irq_fpu_usable() check, fallback to non-AVX2 version")
> > >
> > > from the net tree and commit:
> > >
> > > b1bc08f6474f ("netfilter: nf_tables: prefer direct calls for set lookups")
> > >
> > > from the netfilter-next tree.
> > >
> > > I fixed it up (I just used the latter) and can carry the fix as necessary. This
> > > is now fixed as far as linux-next is concerned, but any non trivial
> > > conflicts should be mentioned to your upstream maintainer when your tree
> > > is submitted for merging. You may also want to consider cooperating
> > > with the maintainer of the conflicting tree to minimise any particularly
> > > complex conflicts.
> >
> > This merge also needs the following merge resolution patch:
> >
> > From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
> > Date: Wed, 19 May 2021 13:48:22 +1000
> > Subject: [PATCH] fix up for merge involving nft_pipapo_lookup()
> >
> > Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
> > ---
> > net/netfilter/nft_set_pipapo.h | 2 --
> > 1 file changed, 2 deletions(-)
> >
> > diff --git a/net/netfilter/nft_set_pipapo.h b/net/netfilter/nft_set_pipapo.h
> > index d84afb8fa79a..25a75591583e 100644
> > --- a/net/netfilter/nft_set_pipapo.h
> > +++ b/net/netfilter/nft_set_pipapo.h
> > @@ -178,8 +178,6 @@ struct nft_pipapo_elem {
> >
> > int pipapo_refill(unsigned long *map, int len, int rules, unsigned long *dst,
> > union nft_pipapo_map_bucket *mt, bool match_only);
> > -bool nft_pipapo_lookup(const struct net *net, const struct nft_set *set,
> > - const u32 *key, const struct nft_set_ext **ext);
> >
> > /**
> > * pipapo_and_field_buckets_4bit() - Intersect 4-bit buckets
> > --
> > 2.30.2
>
> Actually it appears to also need this:
Thanks for the fix, and sorry for the mess. To retain the effect of
b1bc08f6474f ("netfilter: nf_tables: prefer direct calls for set lookups")
from nf-next, though,
> diff --git a/include/net/netfilter/nf_tables_core.h b/include/net/netfilter/nf_tables_core.h
> index 789e9eadd76d..8652b2514e57 100644
> --- a/include/net/netfilter/nf_tables_core.h
> +++ b/include/net/netfilter/nf_tables_core.h
> @@ -89,6 +89,8 @@ extern const struct nft_set_type nft_set_bitmap_type;
> extern const struct nft_set_type nft_set_pipapo_type;
> extern const struct nft_set_type nft_set_pipapo_avx2_type;
>
> +bool nft_pipapo_lookup(const struct net *net, const struct nft_set *set,
> + const u32 *key, const struct nft_set_ext **ext);
while this looks correct to me (b1bc08f6474f adds the prototype
conditionally for CONFIG_RETPOLINE, f0b3d338064e adds it
unconditionally),
> #ifdef CONFIG_RETPOLINE
> bool nft_rhash_lookup(const struct net *net, const struct nft_set *set,
> const u32 *key, const struct nft_set_ext **ext);
> @@ -101,8 +103,6 @@ bool nft_hash_lookup_fast(const struct net *net,
> const u32 *key, const struct nft_set_ext **ext);
> bool nft_hash_lookup(const struct net *net, const struct nft_set *set,
> const u32 *key, const struct nft_set_ext **ext);
> -bool nft_pipapo_lookup(const struct net *net, const struct nft_set *set,
> - const u32 *key, const struct nft_set_ext **ext);
> bool nft_set_do_lookup(const struct net *net, const struct nft_set *set,
> const u32 *key, const struct nft_set_ext **ext);
> #else
> diff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c
> index 9addc0b447f7..dce866d93fee 100644
> --- a/net/netfilter/nft_set_pipapo.c
> +++ b/net/netfilter/nft_set_pipapo.c
> @@ -408,7 +408,6 @@ int pipapo_refill(unsigned long *map, int len, int rules, unsigned long *dst,
> *
> * Return: true on match, false otherwise.
> */
> -INDIRECT_CALLABLE_SCOPE
this shouldn't be removed.
> bool nft_pipapo_lookup(const struct net *net, const struct nft_set *set,
> const u32 *key, const struct nft_set_ext **ext)
> {
>
>
Let me know if I should rather send a patch for linux-next (but it
might take me a bit).
--
Stefano
