Andrea Righi andrea.righi at
Tue Jun 28 10:19:11 UTC 2022

On Tue, Jun 28, 2022 at 10:00:14AM +0200, Emil Renner Berthing wrote:
> [Impact]
>  * The 5.19 kernel adds RISC-V support for running 32bit binaries on
>    64bit systems, but only with hardware support.
>    So far no chips have been released that support it and it's not even
>    implemented in upstream Qemu. Also neither Ubuntu nor any other
>    mainstream Linux distro ships 32bit binaries, so this enables a
>    bunch of code that will most likely never be used.
> [Test Plan]
>  * Setting CONFIG_COMPAT=n just disables a feature that was added in
>    5.19, so should have no impact on userspace compared to earlier
>    kernels.
> [Where problems could occur]
>  * This was implemented by T-Head (Alibaba) so will most likely be
>    supported by one of their future designs. If it turns out to be
>    useful on these cores we can always enable it later.

Applied to kinetic:linux, thanks!


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