zram-swap: default to lzo instead of lzo-rle compression

[Rui Salvaterra]

On Thu, 17 Sep 2020 at 10:38, e9hack <e9hack at gmail.com> wrote:
>
> Hi,
>
> I think commit 419f149e482641ddc520f80a7ab2038f7e2ebc8a is not the proper fix for the described issue.
>
> The kernel module lzo-rle is still missing. To solve this, it must be installed on the root-fs:
>
> diff --git a/package/kernel/linux/modules/lib.mk b/package/kernel/linux/modules/lib.mk
> index 1289cc1f25..fade8a5cfd 100644
> --- a/package/kernel/linux/modules/lib.mk
> +++ b/package/kernel/linux/modules/lib.mk
> @@ -109,9 +109,10 @@ define KernelPackage/lib-lzo
>    HIDDEN:=1
>    FILES:= \
>         $(LINUX_DIR)/crypto/lzo.ko \
> +       $(LINUX_DIR)/crypto/lzo-rle.ko at ge5.1 \
>         $(LINUX_DIR)/lib/lzo/lzo_compress.ko \
>         $(LINUX_DIR)/lib/lzo/lzo_decompress.ko
> -  AUTOLOAD:=$(call AutoProbe,lzo lzo_compress lzo_decompress)
> +  AUTOLOAD:=$(call AutoProbe,lzo lzo-rle lzo_compress lzo_decompress)
>  endef
>
>  define KernelPackage/lib-lzo/description
>
>
> Since kernel 4.19 isn't longer used, @ge5.1 isn't necessary.
>
> Regards,
> Hartmut

Good catch. You're absolutely right, the lzo-rle is a separate module.
Now, what I don't understand is why the crypto layer advertises
lzo-rle support without the module being present. Sounds like an
upstream bug to me…

Thanks,
Rui