From: Michael Tremer <michael.tremer@ipfire.org>
Date: Tue, 13 Dec 2022 17:32:37 +0000 (+0000)
Subject: kernel: Compress the kernel, modules and firmware using Zstandard
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a3776d8aee67369dcff8ea091bc8b785dc2d6647;p=ipfire-3.x.git

kernel: Compress the kernel, modules and firmware using Zstandard

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.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/kernel/config-generic b/kernel/config-generic
index 48efc7c8b..dc4841703 100644
--- a/kernel/config-generic
+++ b/kernel/config-generic
@@ -539,9 +539,8 @@ 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_DECOMPRESS 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=y
@@ -1514,7 +1513,7 @@ CONFIG_FW_LOADER_USER_HELPER=y
 # CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
 CONFIG_FW_LOADER_COMPRESS=y
 CONFIG_FW_LOADER_COMPRESS_XZ=y
-# CONFIG_FW_LOADER_COMPRESS_ZSTD is not set
+CONFIG_FW_LOADER_COMPRESS_ZSTD=y
 # CONFIG_FW_UPLOAD is not set
 # end of Firmware loader
 
diff --git a/kernel/config-x86_64-generic b/kernel/config-x86_64-generic
index a936bd85e..5f8b38def 100644
--- a/kernel/config-x86_64-generic
+++ b/kernel/config-x86_64-generic
@@ -5,10 +5,10 @@
 # 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
 
 #
 # IRQ subsystem
diff --git a/kernel/kernel.nm b/kernel/kernel.nm
index f2516e6a9..bf5708468 100644
--- a/kernel/kernel.nm
+++ b/kernel/kernel.nm
@@ -5,7 +5,7 @@
 
 name       = kernel
 version    = 6.0.6
-release    = 0.6
+release    = 0.7
 thisapp    = linux-%{version}
 
 maintainer = Arne Fitzenreiter <arne.fitzenreiter@ipfire.org>
@@ -57,6 +57,7 @@ build
 		slang-devel
 		xmlto
 		xz
+		zstd
 
 		/sbin/depmod
 		%{kernel_logo}