Update Linux to v5.10.109

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz

Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index c4c580f..91a502b 100755
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -26,34 +26,90 @@
 
 create_package() {
 	local pname="$1" pdir="$2"
+	local dpkg_deb_opts
 
 	mkdir -m 755 -p "$pdir/DEBIAN"
 	mkdir -p "$pdir/usr/share/doc/$pname"
 	cp debian/copyright "$pdir/usr/share/doc/$pname/"
 	cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
-	gzip -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
+	gzip -n -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
 	sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \
 		| xargs -r0 md5sum > DEBIAN/md5sums"
 
 	# Fix ownership and permissions
-	chown -R root:root "$pdir"
+	if [ "$DEB_RULES_REQUIRES_ROOT" = "no" ]; then
+		dpkg_deb_opts="--root-owner-group"
+	else
+		chown -R root:root "$pdir"
+	fi
 	chmod -R go-w "$pdir"
 	# in case we are in a restrictive umask environment like 0077
 	chmod -R a+rX "$pdir"
+	# in case we build in a setuid/setgid directory
+	chmod -R ug-s "$pdir"
 
 	# Create the package
 	dpkg-gencontrol -p$pname -P"$pdir"
-	dpkg --build "$pdir" ..
+	dpkg-deb $dpkg_deb_opts ${KDEB_COMPRESS:+-Z$KDEB_COMPRESS} --build "$pdir" ..
+}
+
+deploy_kernel_headers () {
+	pdir=$1
+
+	rm -rf $pdir
+
+	(
+		cd $srctree
+		find . arch/$SRCARCH -maxdepth 1 -name Makefile\*
+		find include scripts -type f -o -type l
+		find arch/$SRCARCH -name Kbuild.platforms -o -name Platform
+		find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f
+	) > debian/hdrsrcfiles
+
+	{
+		if is_enabled CONFIG_STACK_VALIDATION; then
+			echo tools/objtool/objtool
+		fi
+
+		find arch/$SRCARCH/include Module.symvers include scripts -type f
+
+		if is_enabled CONFIG_GCC_PLUGINS; then
+			find scripts/gcc-plugins -name \*.so
+		fi
+	} > debian/hdrobjfiles
+
+	destdir=$pdir/usr/src/linux-headers-$version
+	mkdir -p $destdir
+	tar -c -f - -C $srctree -T debian/hdrsrcfiles | tar -xf - -C $destdir
+	tar -c -f - -T debian/hdrobjfiles | tar -xf - -C $destdir
+	rm -f debian/hdrsrcfiles debian/hdrobjfiles
+
+	# copy .config manually to be where it's expected to be
+	cp $KCONFIG_CONFIG $destdir/.config
+
+	mkdir -p $pdir/lib/modules/$version/
+	ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build
+}
+
+deploy_libc_headers () {
+	pdir=$1
+
+	rm -rf $pdir
+
+	$MAKE -f $srctree/Makefile headers
+	$MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr
+
+	# move asm headers to /usr/include/<libc-machine>/asm to match the structure
+	# used by Debian-based distros (to support multi-arch)
+	host_arch=$(dpkg-architecture -a$(cat debian/arch) -qDEB_HOST_MULTIARCH)
+	mkdir $pdir/usr/include/$host_arch
+	mv $pdir/usr/include/asm $pdir/usr/include/$host_arch/
 }
 
 version=$KERNELRELEASE
-tmpdir="$objtree/debian/tmp"
-kernel_headers_dir="$objtree/debian/hdrtmp"
-libc_headers_dir="$objtree/debian/headertmp"
-dbg_dir="$objtree/debian/dbgtmp"
+tmpdir=debian/linux-image
+dbg_dir=debian/linux-image-dbg
 packagename=linux-image-$version
-kernel_headers_packagename=linux-headers-$version
-libc_headers_packagename=linux-libc-dev
 dbg_packagename=$packagename-dbg
 
 if [ "$ARCH" = "um" ] ; then
@@ -77,15 +133,13 @@
 BUILD_DEBUG=$(if_enabled_echo CONFIG_DEBUG_INFO Yes)
 
 # Setup the directory structure
-rm -rf "$tmpdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir" $objtree/debian/files
+rm -rf "$tmpdir" "$dbg_dir" debian/files
 mkdir -m 755 -p "$tmpdir/DEBIAN"
 mkdir -p "$tmpdir/lib" "$tmpdir/boot"
-mkdir -p "$kernel_headers_dir/lib/modules/$version/"
 
-# Build and install the kernel
+# Install the kernel
 if [ "$ARCH" = "um" ] ; then
 	mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename"
-	$MAKE linux
 	cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"
 	cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config"
 	gzip "$tmpdir/usr/share/doc/$packagename/config"
@@ -129,16 +183,6 @@
 	fi
 fi
 
-if [ "$ARCH" != "um" ]; then
-	$MAKE -f $srctree/Makefile headers
-	$MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH="$libc_headers_dir/usr"
-	# move asm headers to /usr/include/<libc-machine>/asm to match the structure
-	# used by Debian-based distros (to support multi-arch)
-	host_arch=$(dpkg-architecture -a$(cat debian/arch) -qDEB_HOST_MULTIARCH)
-	mkdir $libc_headers_dir/usr/include/$host_arch
-	mv $libc_headers_dir/usr/include/asm $libc_headers_dir/usr/include/$host_arch/
-fi
-
 # Install the maintainer scripts
 # Note: hook scripts under /etc/kernel are also executed by official Debian
 # kernel packages, as well as kernel packages built using make-kpkg.
@@ -164,29 +208,14 @@
 	chmod 755 "$tmpdir/DEBIAN/$script"
 done
 
-# Build kernel header package
-(cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl) > "$objtree/debian/hdrsrcfiles"
-(cd $srctree; find arch/*/include include scripts -type f -o -type l) >> "$objtree/debian/hdrsrcfiles"
-(cd $srctree; find arch/$SRCARCH -name module.lds -o -name Kbuild.platforms -o -name Platform) >> "$objtree/debian/hdrsrcfiles"
-(cd $srctree; find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f) >> "$objtree/debian/hdrsrcfiles"
-if is_enabled CONFIG_STACK_VALIDATION; then
-	(cd $objtree; find tools/objtool -type f -executable) >> "$objtree/debian/hdrobjfiles"
-fi
-(cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f) >> "$objtree/debian/hdrobjfiles"
-if is_enabled CONFIG_GCC_PLUGINS; then
-	(cd $objtree; find scripts/gcc-plugins -name \*.so -o -name gcc-common.h) >> "$objtree/debian/hdrobjfiles"
-fi
-destdir=$kernel_headers_dir/usr/src/linux-headers-$version
-mkdir -p "$destdir"
-(cd $srctree; tar -c -f - -T -) < "$objtree/debian/hdrsrcfiles" | (cd $destdir; tar -xf -)
-(cd $objtree; tar -c -f - -T -) < "$objtree/debian/hdrobjfiles" | (cd $destdir; tar -xf -)
-(cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be
-ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"
-rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"
-
 if [ "$ARCH" != "um" ]; then
-	create_package "$kernel_headers_packagename" "$kernel_headers_dir"
-	create_package "$libc_headers_packagename" "$libc_headers_dir"
+	if is_enabled CONFIG_MODULES; then
+		deploy_kernel_headers debian/linux-headers
+		create_package linux-headers-$version debian/linux-headers
+	fi
+
+	deploy_libc_headers debian/linux-libc-dev
+	create_package linux-libc-dev debian/linux-libc-dev
 fi
 
 create_package "$packagename" "$tmpdir"