Re: [PATCH for-4.22(?) 0/2] tools: Use the system liblz4 package

[Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>]

On 6/3/26 11:16 AM, Jan Beulich wrote:
> On 03.06.2026 10:53, Andrew Cooper wrote:
> > Switch to using the system liblz4.
> >
> > This brings libxenguest's lz4 decompression in line all the others, rather
> > than using the unsafe decompressor from Xen (itself a port of Linux's unsafe
> > decompressor).
Generally, the patch series looks straightforward and low risk, so I am 
comfortable taking it for this release. Considering that...
> As stated in 84f04d8f0dbf ("libxc: add LZ4 decompression support"), there was
> no shared library available at the time (and on the SLES versions I worked
> with). Later a shared library appeared, but the -devel package still wasn't
> there. On my main dev system (intentionally a relatively old SLES version) I
> therefore wouldn't be able to build/test LZ4 anymore if we went this route.
> (FTAOD this isn't an outright objection, as the goal of the series is
> certainly good. It is mainly a data point to consider.)
...does not consider this an outright objection. While this may become 
an issue sooner or later on older dev systems, if the change is accepted 
into staging, we could switch to the shared library approach in 4.22.
We should also consider adding a note to CHANGELOG.md.

Thanks.

~ Oleksii