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Message-ID: <20230508061749.GC6195@unreal>
Date: Mon, 8 May 2023 09:17:49 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Patryk Sondej <patryk.sondej@...il.com>
Cc: netdev@...r.kernel.org
Subject: Re: [PATCH net] inet_diag: fix inet_diag_msg_attrs_fill() for
net_cls cgroup
On Mon, May 08, 2023 at 05:32:33AM +0200, Patryk Sondej wrote:
> This commit fixes inet_diag_msg_attrs_fill() function in the ipv4/inet_diag.c file.
> The problem was that the function was using CONFIG_SOCK_CGROUP_DATA to check for the net_cls cgroup.
> However, the net_cls cgroup is defined by CONFIG_CGROUP_NET_CLASSID instead.
>
> Therefore, this commit updates the #ifdef statement to CONFIG_CGROUP_NET_CLASSID,
> and uses the sock_cgroup_classid() function to retrieve the classid from the socket cgroup.
>
> This change ensures that the function correctly retrieves the classid for the net_cls cgroup
> and fixes any issues related to the use of the function in this context.
>
Please add Fixes line here.
> Signed-off-by: Patryk Sondej <patryk.sondej@...il.com>
> ---
> net/ipv4/inet_diag.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
> index b812eb36f0e3..7017f88911a6 100644
> --- a/net/ipv4/inet_diag.c
> +++ b/net/ipv4/inet_diag.c
> @@ -157,7 +157,7 @@ int inet_diag_msg_attrs_fill(struct sock *sk, struct sk_buff *skb,
> ext & (1 << (INET_DIAG_TCLASS - 1))) {
> u32 classid = 0;
>
> -#ifdef CONFIG_SOCK_CGROUP_DATA
> +#ifdef CONFIG_CGROUP_NET_CLASSID
This ifdef should be deleted as sock_cgroup_classid() already has right ifdef.
809 static inline u32 sock_cgroup_classid(const struct sock_cgroup_data *skcd)
810 {
811 #ifdef CONFIG_CGROUP_NET_CLASSID
812 return READ_ONCE(skcd->classid);
813 #else
814 return 0;
815 #endif
816 }
817
> classid = sock_cgroup_classid(&sk->sk_cgrp_data);
> #endif
> /* Fallback to socket priority if class id isn't set.
> --
> 2.37.1 (Apple Git-137.1)
>
>
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