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Message-ID: <6eb826b6-4279-8cf8-1c27-01aab0f83843@infradead.org>
Date:   Thu, 20 May 2021 18:04:15 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Stephen Rothwell <sfr@...hwell.id.au>
Cc:     akpm@...ux-foundation.org, broonie@...nel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-next@...r.kernel.org, mhocko@...e.cz,
        mm-commits@...r.kernel.org, sfr@...b.auug.org.au,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Stefano Brivio <sbrivio@...hat.com>,
        netfilter-devel@...r.kernel.org, coreteam@...filter.org
Subject: Re: mmotm 2021-05-19-23-58 uploaded
 (net/netfilter/nft_set_pipapo_avx2.c)

On 5/20/21 4:07 PM, Stephen Rothwell wrote:
> Hi Randy,
> 
> On Thu, 20 May 2021 15:40:54 -0700 Randy Dunlap <rdunlap@...radead.org> wrote:
>>
>> on x86_64:
>> (from linux-next, not mmotm)
> 
> Yeah, this is caused by a bad merge resolution by me.
> 
>> ../net/netfilter/nft_set_pipapo_avx2.c: In function ‘nft_pipapo_avx2_lookup’:
>> ../net/netfilter/nft_set_pipapo_avx2.c:1135:10: error: implicit declaration of function ‘nft_pipapo_lookup’; did you mean ‘nft_pipapo_avx2_lookup’? [-Werror=implicit-function-declaration]
>>    return nft_pipapo_lookup(net, set, key, ext);
>>           ^~~~~~~~~~~~~~~~~
> 
> I have added this to the merge resolution today:
> 
> 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);
>  #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
>  bool nft_pipapo_lookup(const struct net *net, const struct nft_set *set,
>  		       const u32 *key, const struct nft_set_ext **ext)
>  {
> 
> It should apply on top of next-20210520 if you want to test it (I
> haven't tested it yet, but will later today).

Yes, that builds. Thanks.

-- 
~Randy
Reported-by: Randy Dunlap <rdunlap@...radead.org>
https://people.kernel.org/tglx/notes-about-netiquette

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