netdev - Re: [PATCH net v2 1/2] genetlink: add function genl_has

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Message-ID: <CALnjE+rwpFtfd5PsX+Ohzohvst7xuEndS6tfTdMTbgdTjGntsw@mail.gmail.com>
Date:	Thu, 18 Sep 2014 10:11:38 -0700
From:	Pravin Shelar <pshelar@...ira.com>
To:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
Cc:	David Miller <davem@...emloft.net>,
	"dev@...nvswitch.org" <dev@...nvswitch.org>,
	netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net v2 1/2] genetlink: add function genl_has_listeners()

On Thu, Sep 18, 2014 at 1:31 AM, Nicolas Dichtel
<nicolas.dichtel@...nd.com> wrote:
> This function is the counterpart of the function netlink_has_listeners().
>
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>

Looks good.
Acked-by: Pravin B Shelar <pshelar@...ira.com>

> ---
>
> v2: add patch 1/2
>
>  include/net/genetlink.h | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/include/net/genetlink.h b/include/net/genetlink.h
> index 93695f0e22a5..af10c2cf8a1d 100644
> --- a/include/net/genetlink.h
> +++ b/include/net/genetlink.h
> @@ -394,4 +394,12 @@ static inline int genl_set_err(struct genl_family *family, struct net *net,
>         return netlink_set_err(net->genl_sock, portid, group, code);
>  }
>
> +static inline int genl_has_listeners(struct genl_family *family,
> +                                    struct sock *sk, unsigned int group)
> +{
> +       if (WARN_ON_ONCE(group >= family->n_mcgrps))
> +               return -EINVAL;
> +       group = family->mcgrp_offset + group;
> +       return netlink_has_listeners(sk, group);
> +}
>  #endif /* __NET_GENERIC_NETLINK_H */
> --
> 2.1.0
>
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