linux-kernel - Re: [PATCH net v2] tipc: check minimum bearer MTU

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Message-ID: <1480608678.16599.94.camel@decadent.org.uk>
Date:   Thu, 01 Dec 2016 16:11:18 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     Michal Kubecek <mkubecek@...e.cz>,
        Jon Maloy <jon.maloy@...csson.com>,
        Ying Xue <ying.xue@...driver.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        tipc-discussion@...ts.sourceforge.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Qian Zhang <zhangqian-c@....cn>
Subject: Re: [PATCH net v2] tipc: check minimum bearer MTU

On Thu, 2016-12-01 at 12:02 +0100, Michal Kubecek wrote:
[...] 
> +/* check if device MTU is sufficient for tipc headers */
> +static inline bool tipc_check_mtu(struct net_device *dev, unsigned int reserve)
> +{
> +	if (dev->mtu >= TIPC_MIN_BEARER_MTU + reserve)
> +		return false;
> +	netdev_warn(dev, "MTU too low for tipc bearer\n");
> +	return true;
> +}
[...]

The comment says "check if ... sufficient" but the return value
indicates the opposite.  Could you make these consistent?

Other than that, this looks OK to me.  I haven't tested any version as
I don't know how to use TIPC.

Ben.

-- 
Ben Hutchings
A free society is one where it is safe to be unpopular. - Adlai
Stevenson


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