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List:       gentoo-dev
Subject:    [gentoo-dev] [PATCH 4/4] linux-mod.eclass: Fix xz compression options
From:       Michał Górny <mgorny () gentoo ! org>
Date:       2023-12-28 10:35:36
Message-ID: 20231228103536.420981-4-mgorny () gentoo ! org
[Download RAW message or body]

Match xz compression options to the ones used by the kernel,
as the xz decoder used by the kernel supports only a subset of the xz
format.

Bug: https://bugs.gentoo.org/920837
Signed-off-by: Michał Górny <mgorny@gentoo.org>
---
 eclass/linux-mod.eclass | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/eclass/linux-mod.eclass b/eclass/linux-mod.eclass
index 26d8cac47ef0..c71ace53aa00 100644
--- a/eclass/linux-mod.eclass
+++ b/eclass/linux-mod.eclass
@@ -689,7 +689,9 @@ linux-mod_src_install() {
 		# and similarly compress the module being built if != NONE.
 
 		if linux_chkconfig_present MODULE_COMPRESS_XZ; then
-			xz -T$(makeopts_jobs) --memlimit-compress=50% -q ${modulename}.${KV_OBJ} || die \
"Compressing ${modulename}.${KV_OBJ} with xz failed" +			# match kernel compression \
options for compatibility +			# https://bugs.gentoo.org/920837
+			xz -T$(makeopts_jobs) --memlimit-compress=50% -q --check=crc32 --lzma2=dict=1MiB \
${modulename}.${KV_OBJ} || die "Compressing ${modulename}.${KV_OBJ} with xz failed"  \
doins ${modulename}.${KV_OBJ}.xz  KV_OBJ_COMPRESS_EXT=".xz"
 		elif linux_chkconfig_present MODULE_COMPRESS_GZIP; then
-- 
2.43.0


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