netdev - Re: [PATCH net-next 3/5] net: hns3: add byte order conversion for PF to VF mailbox message

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Date:   Fri, 6 May 2022 20:10:40 +0800
From:   "huangguangbin (A)" <huangguangbin2@...wei.com>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     <davem@...emloft.net>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <lipeng321@...wei.com>,
        <chenhao288@...ilicon.com>
Subject: Re: [PATCH net-next 3/5] net: hns3: add byte order conversion for PF
 to VF mailbox message



On 2022/5/6 9:47, Jakub Kicinski wrote:
> On Thu, 5 May 2022 20:44:42 +0800 Guangbin Huang wrote:
>> From: Jie Wang <wangjie125@...wei.com>
>>
>> Currently, hns3 mailbox processing between PF and VF missed to convert
>> message byte order and use data type u16 instead of __le16 for mailbox
>> data process. These processes may cause problems between different
>> architectures.
>>
>> So this patch uses __le16/__le32 data type to define mailbox data
>> structures. To be compatible with old hns3 driver, these structures use
>> one-byte alignment. Then byte order conversions are added to mailbox
>> messages from PF to VF.
> 
> This adds a few sparse [1] warnings, you must have missed a few
> conversions.
> 
> Please wait at least 24h for additional feedback before reposting.
> 
> [1] https://www.kernel.org/doc/html/latest/dev-tools/sparse.html
> 
> .
> 
Ok, thanks