linux-kernel - Re: [PATCH bpf-next] net: remove duplicate INDIRECT_CALLABLE_DECLARE of udp[6]

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Message-ID: <20230731185627.11008-1-kuniyu@amazon.com>
Date:   Mon, 31 Jul 2023 11:56:27 -0700
From:   Kuniyuki Iwashima <kuniyu@...zon.com>
To:     <lmb@...valent.com>
CC:     <andrii@...nel.org>, <ast@...nel.org>, <bpf@...r.kernel.org>,
        <daniel@...earbox.net>, <kuniyu@...zon.com>,
        <linux-kernel@...r.kernel.org>, <martin.lau@...nel.org>,
        <martin.lau@...ux.dev>
Subject: Re: [PATCH bpf-next] net: remove duplicate INDIRECT_CALLABLE_DECLARE of udp[6]_ehashfn

From: Lorenz Bauer <lmb@...valent.com>
Date: Mon, 31 Jul 2023 11:42:53 +0200
> There are already INDIRECT_CALLABLE_DECLARE in the hashtable
> headers, no need to declare them again.
> 
> Fixes: 0f495f761722 ("net: remove duplicate reuseport_lookup functions")
> Suggested-by: Martin Lau <martin.lau@...ux.dev>
> Signed-off-by: Lorenz Bauer <lmb@...valent.com>

Reviewed-by: Kuniyuki Iwashima <kuniyu@...zon.com>


> ---
> As pointed out by Martin there are some duplicate macro invocations
> in my recent SO_REUSEPORT support for sk_assign patchset.
> 
> Remove the declarations in the .c files.
> ---
>  net/ipv4/inet_hashtables.c  | 2 --
>  net/ipv6/inet6_hashtables.c | 2 --
>  2 files changed, 4 deletions(-)
> 
> diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
> index 6a872b8fb0d3..7876b7d703cb 100644
> --- a/net/ipv4/inet_hashtables.c
> +++ b/net/ipv4/inet_hashtables.c
> @@ -333,8 +333,6 @@ static inline int compute_score(struct sock *sk, struct net *net,
>  	return score;
>  }
>  
> -INDIRECT_CALLABLE_DECLARE(inet_ehashfn_t udp_ehashfn);
> -
>  /**
>   * inet_lookup_reuseport() - execute reuseport logic on AF_INET socket if necessary.
>   * @net: network namespace.
> diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
> index 7c9700c7c9c8..b0e8d278e8a9 100644
> --- a/net/ipv6/inet6_hashtables.c
> +++ b/net/ipv6/inet6_hashtables.c
> @@ -112,8 +112,6 @@ static inline int compute_score(struct sock *sk, struct net *net,
>  	return score;
>  }
>  
> -INDIRECT_CALLABLE_DECLARE(inet6_ehashfn_t udp6_ehashfn);
> -
>  /**
>   * inet6_lookup_reuseport() - execute reuseport logic on AF_INET6 socket if necessary.
>   * @net: network namespace.
> 
> ---
> base-commit: fb213ecbb8ac56b2d5569737f59126e91f87829a
> change-id: 20230731-indir-call-f1474e314184
> 
> Best regards,
> -- 
> Lorenz Bauer <lmb@...valent.com>