linux-kernel - Re: [PATCH] net: netdevsim: fix byte order on ipsec debugfs file

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Message-ID: <8e6684df-7b6e-ccb5-b123-2dc8337442bd@canonical.com>
Date:   Wed, 9 Mar 2022 10:13:32 +0100
From:   Kleber Souza <kleber.souza@...onical.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     davem@...emloft.net, shuah@...nel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH] net: netdevsim: fix byte order on ipsec debugfs file

On 09.03.22 06:58, Jakub Kicinski wrote:
> On Tue,  8 Mar 2022 14:51:06 +0100 Kleber Sacilotto de Souza wrote:
>> When adding a new xfrm state, the data provided via struct xfrm_state
>> is stored in network byte order. This needs to be taken into
>> consideration when exporting the SAs data to userspace via debugfs,
>> otherwise the content will depend on the system endianness. Fix this by
>> converting all multi-byte fields from network to host order.
>>
>> Also fix the selftest script which was expecting the data as exported by
>> a little-endian system, which was inverted.
>>
>> Fixes: 7699353da875 ("netdevsim: add ipsec offload testing")
>> Fixes: 2766a11161cc ("selftests: rtnetlink: add ipsec offload API test")
>> Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@...onical.com>
> 
> Then the struct members need to have the correct types,
> as is this patch adds sparse warnings (build with C=1).

Hi Jakub,

Thank you for the review. I'll fix it and send a v2 shortly.

Kleber