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Date:   Thu, 5 Apr 2018 08:07:48 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Vadim Lomovtsev <Vadim.Lomovtsev@...iumnetworks.com>
Cc:     sgoutham@...ium.com, sunil.kovvuri@...il.com,
        robert.richter@...nel.org, linux-arm-kernel@...ts.infradead.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        davem@...emloft.net, dnelson@...hat.com, gustavo@...eddedor.com,
        Vadim Lomovtsev <Vadim.Lomovtsev@...ium.com>
Subject: Re: [PATCH] net: thunderx: rework mac addresses list to u64 array

>  struct xcast_addr_list {
> -	struct list_head list;
>  	int              count;
> +	u64              mc[0];

Please use the standard C99 syntax here:

	u64              mc[];

> +				mc_list = kmalloc(sizeof(*mc_list) +
> +						  sizeof(u64) * netdev_mc_count(netdev),
> +						  GFP_ATOMIC);

kmalloc_array(), please.

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