netdev - Re: [PATCH v2 net-next 2/5] exthdrs: Registration of TLV handlers and parameters

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Message-Id: <20190201.144002.415857971883033607.davem@davemloft.net>
Date:   Fri, 01 Feb 2019 14:40:02 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     tom@...bertland.com
Cc:     netdev@...r.kernel.org, tom@...ntonium.net
Subject: Re: [PATCH v2 net-next 2/5] exthdrs: Registration of TLV handlers
 and parameters

From: Tom Herbert <tom@...bertland.com>
Date: Mon, 28 Jan 2019 10:22:52 -0800

> +	tpt = vmalloc(tlv_param_table_size(old->count - 1));
> +	if (!tpt)
> +		return -ENOMEM;
 ...
> +	tsize = tlv_param_table_size(ARRAY_SIZE(tlv_init_params) + 1);
> +
> +	tpt = vmalloc(tsize);
> +	if (!tpt)
> +		return -ENOMEM;

Most of the time this is going to be well within range for a quick, more
efficient, linearly mapped kmalloc allocation.

So please use kvzalloc() or similar for this table.