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Re: [XEN PATCH] docs/misra: mark the gzip folder as adopted code
- To: Jan Beulich <jbeulich@xxxxxxxx>, Federico Serafini <federico.serafini@xxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Thu, 18 Apr 2024 19:33:05 +0100
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- Cc: consulting@xxxxxxxxxxx, Simone Ballarin <simone.ballarin@xxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, Doug Goldstein <cardoe@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>
- Delivery-date: Thu, 18 Apr 2024 18:33:28 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 18/04/2024 8:39 am, Jan Beulich wrote:
> On 15.04.2024 17:44, Andrew Cooper wrote:
>> On 15/04/2024 10:56 am, Federico Serafini wrote:
>>> Mark the whole gzip folder as adopted code and remove the redundant
>>> deviation of file inflate.
>>>
>>> Signed-off-by: Federico Serafini <federico.serafini@xxxxxxxxxxx>
>> Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
>>
>> I hadn't realised that we had a special case like this. Definitely
>> better to get rid of it.
>>
>> I've pulled this into my `for-next` branch, and will get it committed
>> properly when OSSTest (our non-gitlab CI) is in a happier state.
> Hmm. Considering Daniel's work (which I'll comment on separately), is this
> really going to remain "adopted"? We're about to diverge to a degree where
> simply taking patches from the original source isn't going to work anymore.
> IOW I think we want either Daniel's work (and perhaps follow-on adjustments)
> or marking of that code as adopted.
inflate.c is was from Linux in 2010. There's only one build fix and one
comment change in Linux since 2010, whereas Xen's copy has seen several
bugfixes and cleanups.
gunzip.c has floated around rather more (it was originally some glue
code in bZImage.c) but it was entirely rewritten first, to support other
types of decompression (we did this differently in Xen), and second to
support KASLR.
In both cases, there's not an upstream to usefully track, and we
probably take ownership.
~Andrew
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