netdev - Re: [PATCHv2 net-next 3/6] bridge: simplify the stp_state_store by calling store_bridge

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Date:	Tue, 5 Apr 2016 14:08:13 +0900
From:	Toshiaki Makita <makita.toshiaki@....ntt.co.jp>
To:	Xin Long <lucien.xin@...il.com>,
	network dev <netdev@...r.kernel.org>,
	bridge@...ts.linux-foundation.org
Cc:	davem@...emloft.net,
	Stephen Hemminger <stephen@...workplumber.org>,
	Hannes Frederic Sowa <hannes@...essinduktion.org>,
	nikolay@...ulusnetworks.com
Subject: Re: [PATCHv2 net-next 3/6] bridge: simplify the stp_state_store by
 calling store_bridge_parm

On 2016/04/05 12:32, Xin Long wrote:
> There are some repetitive codes in stp_state_store, we can remove
> them by calling store_bridge_parm.
> 
> Signed-off-by: Xin Long <lucien.xin@...il.com>
> ---
>  net/bridge/br_sysfs_br.c | 24 +++++++-----------------
>  1 file changed, 7 insertions(+), 17 deletions(-)
> 
> diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
> index 137cd3b..9918763 100644
> --- a/net/bridge/br_sysfs_br.c
> +++ b/net/bridge/br_sysfs_br.c
> @@ -128,27 +128,17 @@ static ssize_t stp_state_show(struct device *d,
>  }
>  
>  
> +static int set_stp_state(struct net_bridge *br, unsigned long val)
> +{

You forgot to add rtnl lock here?
The missing lock is restored in patch 4, but at this point bisect could
break..

> +	br_stp_set_enabled(br, val);
> +	return 0;
> +}

Toshiaki Makita