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authorMartin Nybo Andersen <tweek@tweek.dk>2023-09-15 12:15:39 +0200
committerMasahiro Yamada <masahiroy@kernel.org>2023-09-25 09:01:05 +0200
commitfbf5892df21a8ccfcb2fda0fd65bc3169c89ed28 (patch)
tree5d68d3b62166c5aa02e4d89b085a5f4204ceefca /scripts
parentLinux 6.6-rc3 (diff)
downloadlinux-fbf5892df21a8ccfcb2fda0fd65bc3169c89ed28.tar.xz
linux-fbf5892df21a8ccfcb2fda0fd65bc3169c89ed28.zip
kbuild: Use CRC32 and a 1MiB dictionary for XZ compressed modules
Kmod is now (since kmod commit 09c9f8c5df04 ("libkmod: Use kernel decompression when available")) using the kernel decompressor, when loading compressed modules. However, the kernel XZ decompressor is XZ Embedded, which doesn't handle CRC64 and dictionaries larger than 1MiB. Use CRC32 and 1MiB dictionary when XZ compressing and installing kernel modules. Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1050582 Signed-off-by: Martin Nybo Andersen <tweek@tweek.dk> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/Makefile.modinst2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index 346f5ec50682..0afd75472679 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -144,7 +144,7 @@ endif
quiet_cmd_gzip = GZIP $@
cmd_gzip = $(KGZIP) -n -f $<
quiet_cmd_xz = XZ $@
- cmd_xz = $(XZ) --lzma2=dict=2MiB -f $<
+ cmd_xz = $(XZ) --check=crc32 --lzma2=dict=1MiB -f $<
quiet_cmd_zstd = ZSTD $@
cmd_zstd = $(ZSTD) -T0 --rm -f -q $<