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realtek: Migrate to libdeflate

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Libdeflate is a more advanced gzip compressor, which allows for faster
decompression, higher compression speed (factor 3-4), while being fully
gzip compatible.

Some comparison
gzip    | libdeflate-gzip | delta  | image [openwrt-realtek-rtl839x-*]
--------+-----------------+--------+-----------------------------------------------
6589174 | 6298794         | 290380 | d-link_dgs-1210-52-initramfs-kernel.bin
6291632 | 6029488         | 262144 | d-link_dgs-1210-52-squashfs-factory_image1.bin
6292270 | 6030128         | 262142 | d-link_dgs-1210-52-squashfs-sysupgrade.bin
6589142 | 6298760         | 290382 | zyxel_gs1900-48-initramfs-kernel.bin
6292264 | 6030122         | 262142 | zyxel_gs1900-48-squashfs-sysupgrade.bin

and changing lzma to (libdeflate-)gzip on existing rtl930x target:
gzip    | libdeflate-gzip | delta  | image [openwrt-realtek-rtl930x-*]
--------+-----------------+--------+--------------------------------------
6816230 | 6510382         | 305848 | zyxel_xgs1250-12-initramfs-kernel.bin

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Reviewed-by: Robert Marko <robimarko@gmail.com>
Reviewed-by: Rosen Penev <rosenp@gmail.com>
Reviewed-by: Sander Vanheule <sander@svanheule.net>
This commit is contained in:
Olliver Schinagl 2022-12-14 15:16:33 +01:00 committed by Sander Vanheule
parent a51ca085bf
commit 9260027535
3 changed files with 5 additions and 5 deletions
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4
target/linux/realtek/image/Makefile
View file

@ -90,12 +90,12 @@ define Device/Default
KERNEL := \
kernel-bin | \
append-dtb | \
gzip | \
libdeflate-gzip | \
uImage gzip
KERNEL_INITRAMFS := \
kernel-bin | \
append-dtb | \
gzip | \
libdeflate-gzip | \
uImage gzip
DEVICE_DTS_DIR := ../dts-$(KERNEL_PATCHVER)
DEVICE_DTS = $$(SOC)_$(1)

4
target/linux/realtek/image/common.mk
View file

@ -7,7 +7,7 @@ define Device/d-link_dgs-1210
KERNEL := \
kernel-bin | \
append-dtb | \
gzip | \
libdeflate-gzip | \
uImage gzip | \
dlink-cameo
CAMEO_KERNEL_PART := 2
@ -60,7 +60,7 @@ define Device/zyxel_gs1900
KERNEL_INITRAMFS := \
kernel-bin | \
append-dtb | \
gzip | \
libdeflate-gzip | \
zyxel-vers | \
uImage gzip
endef

2
target/linux/realtek/image/rtl838x.mk
View file

@ -70,7 +70,7 @@ define Device/engenius_ews2910p
KERNEL_INITRAMFS := \
kernel-bin | \
append-dtb | \
gzip | \
libdeflate-gzip | \
uImage gzip -n 'IMG-0.00.00-c0.0.00'
endef
TARGET_DEVICES += engenius_ews2910p