netdev - Re: [PATCH net-next] bridge: remove unnecessary check for vtbegin in br_fill_vlan_tinfo

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Message-Id: <20170207.141430.837924902975646212.davem@davemloft.net>
Date:   Tue, 07 Feb 2017 14:14:30 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     roopa@...ulusnetworks.com
Cc:     netdev@...r.kernel.org, dan.carpenter@...cle.com,
        nikolay@...ulusnetworks.com, stephen@...workplumber.org,
        bridge@...ts.linux-foundation.org
Subject: Re: [PATCH net-next] bridge: remove unnecessary check for vtbegin
 in br_fill_vlan_tinfo_range

From: Roopa Prabhu <roopa@...ulusnetworks.com>
Date: Tue,  7 Feb 2017 06:43:23 -0800

> From: Roopa Prabhu <roopa@...ulusnetworks.com>
> 
> vtbegin should not be NULL in this function, Its already checked by the
> caller.
> 
> this should silence the below smatch complaint:
>   net/bridge/br_netlink_tunnel.c:144 br_fill_vlan_tinfo_range()
>     error: we previously assumed 'vtbegin' could be null (see line 130)
> 
> net/bridge/br_netlink_tunnel.c
>    129
>    130      if (vtbegin && vtend && (vtend->vid - vtbegin->vid) > 0) {
>                     ^^^^^^^
> Check for NULL.
> 
> Fixes: efa5356b0d97 ("bridge: per vlan dst_metadata netlink support")
> Reported-By: Dan Carpenter <dan.carpenter@...cle.com>
> Signed-off-by: Roopa Prabhu <roopa@...ulusnetworks.com>

Applied.