Hello,

I disagree for reasons that I pointed out in the cover letter.

Xz is probably doing a fine job here.

If other people think we have enough space, I obviously don’t have a problem at all with Zstandard.

> On 26 Dec 2022, at 20:29, Peter Müller <peter.mueller(a)ipfire.org> wrote:
> 
> Zstandard is an ideal compression algorithm with great performance for
> this purpose. The kernel is still able to load firmware compressed using
> XZ and ramdisks compressed with various other algorirthms.
> 
> Backported from IPFire 3.x as a3776d8aee67369dcff8ea091bc8b785dc2d6647.
> 
> Signed-off-by: Peter Müller <peter.mueller(a)ipfire.org>
> ---
> config/kernel/kernel.config.x86_64-ipfire | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel.config.x86_64-ipfire
> index 085005dbc..763c7c842 100644
> --- a/config/kernel/kernel.config.x86_64-ipfire
> +++ b/config/kernel/kernel.config.x86_64-ipfire
> @@ -41,10 +41,10 @@ CONFIG_HAVE_KERNEL_ZSTD=y
> # CONFIG_KERNEL_GZIP is not set
> # CONFIG_KERNEL_BZIP2 is not set
> # CONFIG_KERNEL_LZMA is not set
> -CONFIG_KERNEL_XZ=y
> +# CONFIG_KERNEL_XZ is not set
> # CONFIG_KERNEL_LZO is not set
> # CONFIG_KERNEL_LZ4 is not set
> -# CONFIG_KERNEL_ZSTD is not set
> +CONFIG_KERNEL_ZSTD=y
> CONFIG_DEFAULT_INIT=""
> CONFIG_DEFAULT_HOSTNAME="(none)"
> CONFIG_SWAP=y
> @@ -807,8 +807,8 @@ CONFIG_MODULE_SIG_SHA512=y
> CONFIG_MODULE_SIG_HASH="sha512"
> # CONFIG_MODULE_COMPRESS_NONE is not set
> # CONFIG_MODULE_COMPRESS_GZIP is not set
> -CONFIG_MODULE_COMPRESS_XZ=y
> -# CONFIG_MODULE_COMPRESS_ZSTD is not set
> +# CONFIG_MODULE_COMPRESS_XZ is not set
> +CONFIG_MODULE_COMPRESS_ZSTD=y
> # CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
> CONFIG_MODPROBE_PATH="/sbin/modprobe"
> # CONFIG_TRIM_UNUSED_KSYMS is not set
> -- 
> 2.35.3