Re: [PATCH net 5/6] net: mvneta: The mvneta_percpu_elect function should be atomic

From: Gregory CLEMENT
Date: Mon Feb 01 2016 - 05:23:12 EST


Hi David,

On sam., janv. 30 2016, David Miller <davem@xxxxxxxxxxxxx> wrote:

> From: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
> Date: Fri, 29 Jan 2016 17:26:06 +0100
>
>> @@ -370,6 +370,8 @@ struct mvneta_port {
>> struct net_device *dev;
>> struct notifier_block cpu_notifier;
>> int rxq_def;
>> + /* protect */
>> + spinlock_t lock;
>>
>> /* Core clock */
>> struct clk *clk;
>
> Protect what? This comment needs a lot of improvement.

Sorry about it, this was a left-over.

>
> Everyone knows a spinlock "protects" things, so if you aren't going
> to actually describe what this lock protects, and in what contexts
> the lock is used, you might as well not say anything at all.

I can only agree with you, I will fix it for next version.

Thanks,

Gregory


--
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com