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Message-ID: <20230314221633.1e6c9bef@kernel.org>
Date:   Tue, 14 Mar 2023 22:16:33 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Anjali Kulkarni <anjali.k.kulkarni@...cle.com>
Cc:     davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
        zbr@...emap.net, brauner@...nel.org, johannes@...solutions.net,
        ecree.xilinx@...il.com, leon@...nel.org, keescook@...omium.org,
        socketcan@...tkopp.net, petrm@...dia.com,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v2 2/5] connector/cn_proc: Add filtering to fix some
 bugs

On Tue, 14 Mar 2023 19:18:47 -0700 Anjali Kulkarni wrote:
> diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
> index 003c7e6ec9be..ad8ec18152cd 100644
> --- a/net/netlink/af_netlink.c
> +++ b/net/netlink/af_netlink.c
> @@ -63,6 +63,7 @@
>  #include <linux/net_namespace.h>
>  #include <linux/nospec.h>
>  #include <linux/btf_ids.h>
> +#include <linux/connector.h>

Not needed any more.

>  	/* must not acquire netlink_table_lock in any way again before unbind
>  	 * and notifying genetlink is done as otherwise it might deadlock
>  	 */
> -	if (nlk->netlink_unbind) {
> +	if (nlk->netlink_unbind && nlk->groups) {

Why?

>  		int i;
> -
>  		for (i = 0; i < nlk->ngroups; i++)
>  			if (test_bit(i, nlk->groups))
>  				nlk->netlink_unbind(sock_net(sk), i + 1);

Please separate the netlink core changes from the connector
changes.

Please slow down with new versions, we have 300 patches in the queue,
replying to one version just to notice you posted a new one is
frustrating. Give reviewers 24h to reply.

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