Please backport 0b2c29fb68f8bf3e87a9 efi/zboot: Limit compression options to GZIP and ZSTD to v6.12. Future work on kexec and EFI zboot will only support those compression methods, and currently, only Loongarch on Debian uses this with a different compression method (XZ) and so now is the time to make this change. Thanks, Ard.
