netdev - Re: [EXT] Re: [PATCH net-next 08/17] net: atlantic: A2 driver-firmware interface

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Date:   Sun, 26 Apr 2020 11:50:19 +0300
From:   Igor Russkikh <irusskikh@...vell.com>
To:     David Miller <davem@...emloft.net>, <kuba@...nel.org>
CC:     <netdev@...r.kernel.org>,
        Mark Starovoytov <mstarovoitov@...vell.com>,
        Dmitry Bogdanov <dbogdanov@...vell.com>
Subject: Re: [EXT] Re: [PATCH net-next 08/17] net: atlantic: A2
 driver-firmware interface


> From: Jakub Kicinski <kuba@...nel.org>
> Date: Fri, 24 Apr 2020 17:44:47 -0700
> 
>> On Fri, 24 Apr 2020 10:27:20 +0300 Igor Russkikh wrote:
>>> +/* Start of HW byte packed interface declaration */
>>> +#pragma pack(push, 1)
>>
>> Does any structure here actually require packing?
> 
> Yes, please use the packed attribute as an absolute _last_ resort.

These are HW bit-mapped layout API, without packing compiler may screw up
alignments in some of these structures.

Regards,
  Igor