netdev - Re: [net 11/15] net/mlx5e: kTLS, Save a copy of the crypto info

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Message-ID: <9f2465b6-9bec-326b-8939-ff9d2a6d5bb4@mellanox.com>
Date:   Sun, 20 Oct 2019 07:46:00 +0000
From:   Tariq Toukan <tariqt@...lanox.com>
To:     Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Saeed Mahameed <saeedm@...lanox.com>
CC:     "David S. Miller" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Tariq Toukan <tariqt@...lanox.com>,
        Eran Ben Elisha <eranbe@...lanox.com>
Subject: Re: [net 11/15] net/mlx5e: kTLS, Save a copy of the crypto info



On 10/19/2019 2:16 AM, Jakub Kicinski wrote:
> On Fri, 18 Oct 2019 19:38:22 +0000, Saeed Mahameed wrote:
>> From: Tariq Toukan <tariqt@...lanox.com>
>>
>> Do not assume the crypto info is accessible during the
>> connection lifetime. Save a copy of it in the private
>> TX context.
> 
> It should be around as long as the driver knows about the socket, no?
> 

The crypto info instance passed to the driver (as parameter in 
connection creation callback) might be modified/zeroed/reused, so the 
driver is expected to save its own copy, not just the pointer.