From: Piotr Gorski <lucjan.lucjanov@xxxxxxxxx>
kmod 28 supports modules compressed in zstd format so let's add this possibility to kernel.
Signed-off-by: Piotr Gorski <lucjan.lucjanov@xxxxxxxxx>
---
Makefile | 7 +++++--
init/Kconfig | 9 ++++++---
2 files changed, 11 insertions(+), 5 deletions(-)
diff --git a/Makefile b/Makefile
index cf54d33ba863..90986a3f5897 100644
--- a/Makefile
+++ b/Makefile
@@ -1049,8 +1049,8 @@ endif # INSTALL_MOD_STRIP
export mod_strip_cmd
# CONFIG_MODULE_COMPRESS, if defined, will cause module to be compressed
-# after they are installed in agreement with CONFIG_MODULE_COMPRESS_GZIP
-# or CONFIG_MODULE_COMPRESS_XZ.
+# after they are installed in agreement with CONFIG_MODULE_COMPRESS_GZIP,
+# CONFIG_MODULE_COMPRESS_XZ, or CONFIG_MODULE_COMPRESS_ZSTD.
mod_compress_cmd = true
ifdef CONFIG_MODULE_COMPRESS
@@ -1060,6 +1060,9 @@ ifdef CONFIG_MODULE_COMPRESS
ifdef CONFIG_MODULE_COMPRESS_XZ
mod_compress_cmd = $(XZ) --lzma2=dict=2MiB -f
endif # CONFIG_MODULE_COMPRESS_XZ
+ ifdef CONFIG_MODULE_COMPRESS_ZSTD
+ mod_compress_cmd = $(ZSTD) -T0 -9 --rm -f
+ endif # CONFIG_MODULE_COMPRESS_ZSTD
endif # CONFIG_MODULE_COMPRESS
export mod_compress_cmd
diff --git a/init/Kconfig b/init/Kconfig
index b77c60f8b963..11d7dfea98b6 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -2216,8 +2216,8 @@ config MODULE_COMPRESS
bool "Compress modules on installation"
help
- Compresses kernel modules when 'make modules_install' is run; gzip or
- xz depending on "Compression algorithm" below.
+ Compresses kernel modules when 'make modules_install' is run; gzip,
+ xz, or zstd depending on "Compression algorithm" below.
module-init-tools MAY support gzip, and kmod MAY support gzip and xz.
@@ -2239,7 +2239,7 @@ choice
This determines which sort of compression will be used during
'make modules_install'.
- GZIP (default) and XZ are supported.
+ GZIP (default), XZ, and ZSTD are supported.
config MODULE_COMPRESS_GZIP
bool "GZIP"
@@ -2247,6 +2247,9 @@ config MODULE_COMPRESS_GZIP
config MODULE_COMPRESS_XZ
bool "XZ"
+config MODULE_COMPRESS_ZSTD
+ bool "ZSTD"
+
endchoice
config MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS
--
2.30.0.81.g72c4083ddf
