--- a/sys-kernel/linux-firmware/linux-firmware-20191215.ebuild	2019-12-15 21:39:45.000000000 +0300
+++ b/sys-kernel/linux-firmware/linux-firmware-20191215.ebuild	2020-01-07 05:54:17.338158259 +0300
@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
-inherit mount-boot savedconfig
+inherit mount-boot savedconfig multiprocessing
 
 if [[ ${PV} == 99999999* ]]; then
 	inherit git-r3
@@ -21,13 +21,14 @@ LICENSE="GPL-2 GPL-2+ GPL-3 BSD MIT || (
 		linux-fw-redistributable ( BSD-2 BSD BSD-4 ISC MIT no-source-code ) )
 	unknown-license? ( all-rights-reserved )"
 SLOT="0"
-IUSE="initramfs +redistributable savedconfig unknown-license"
+IUSE="compress initramfs +redistributable savedconfig unknown-license"
 RESTRICT="binchecks strip
 	unknown-license? ( bindist )"
 
 REQUIRED_USE="initramfs? ( redistributable )"
 
-BDEPEND="initramfs? ( app-arch/cpio )"
+BDEPEND="compress? ( app-arch/xz-utils )
+	initramfs? ( app-arch/cpio )"
 
 #add anything else that collides to this
 RDEPEND="!savedconfig? (
@@ -297,6 +298,8 @@ src_prepare() {
 }
 
 src_install() {
+	local f target
+
 	save_config ${PN}.conf
 	rm ${PN}.conf || die
 
@@ -311,6 +314,17 @@ src_install() {
 		die "Refusing to install an empty package"
 	fi
 
+	if use compress; then
+		while IFS= read -r -d '' f; do
+			target=$(readlink "${f}")
+			ln -sf "${target}".xz "${f}" || die
+			mv "${f}" "${f}".xz || die
+		done < <(find . -type l -print0)
+
+		find . -type f -print0 | \
+			xargs -0 -P $(makeopts_jobs) -I'{}' xz -C crc32 '{}' || die
+	fi
+
 	insinto /lib/firmware/
 	doins -r *
 }