drbd,dkms: use $kernel_source_dir

Author: WanzenBug

misc/dkms.conf

@@ -1,7 +1,7 @@
 PACKAGE_VERSION="#MODULE_VERSION#"
 PACKAGE_NAME="drbd"
-MAKE="make -C src/drbd KDIR=/lib/modules/$kernelver/build"
-CLEAN="make -C src/drbd clean KDIR=/lib/modules/$kernelver/build"
+MAKE="make -C src/drbd KDIR=$kernel_source_dir"
+CLEAN="make -C src/drbd clean KDIR=$kernel_source_dir"
 AUTOINSTALL="yes"
 
 BUILT_MODULE_NAME[0]="drbd"
@@ -16,7 +16,7 @@ DEST_MODULE_LOCATION[2]="/kernel/drivers/block/drbd"
 
 IDX=3
 
-if grep -q ^CONFIG_INFINIBAND= /lib/modules/$kernelver/build/.config; then
+if grep -q ^CONFIG_INFINIBAND= "$kernel_source_dir/.config"; then
 BUILT_MODULE_NAME[$IDX]="drbd_transport_rdma"
 BUILT_MODULE_LOCATION[$IDX]="./src/drbd/build-current/"
 DEST_MODULE_LOCATION[$IDX]="/kernel/drivers/block/drbd"
@@ -31,7 +31,7 @@ MAKE+=" BUILD_OFED=1"
 # See drbd/Kbuild: this is that check for the kernel version, but worse: check for kernel >= 4.17
 IFS=".-" read -ra KVER <<< "$kernelver"
 if [ "${KVER[0]}" -ge 4 ] && ( [ "${KVER[0]}" -gt 4 ] || [ "${KVER[1]}" -ge 17 ] ) ; then
-if grep -q ^CONFIG_TLS= /lib/modules/$kernelver/build/.config && ! grep -q ^CONFIG_NET_HANDSHAKE= /lib/modules/$kernelver/build/.config ; then
+if grep -q ^CONFIG_TLS= "$kernel_source_dir/.config" && ! grep -q ^CONFIG_NET_HANDSHAKE= "$kernel_source_dir/.config" ; then
 BUILT_MODULE_NAME[$IDX]="handshake"
 BUILT_MODULE_LOCATION[$IDX]="./src/drbd/build-current/drbd-kernel-compat/handshake"
 DEST_MODULE_LOCATION[$IDX]="/kernel/net/handshake"
@@ -43,14 +43,14 @@ fi
 # So we try to find a compiler that matches the version used to build the original kernel.
 get_cc_version() {
 	if [ -n "$1" ]; then
-		scl run "$1" -- "/lib/modules/$kernelver/build/scripts/cc-version.sh" cc | cut -d' ' -f2
+		scl run "$1" -- "$kernel_source_dir/scripts/cc-version.sh" cc | cut -d' ' -f2
 	else
-		"/lib/modules/$kernelver/build/scripts/cc-version.sh" cc | cut -d' ' -f2
+		"$kernel_source_dir/scripts/cc-version.sh" cc | cut -d' ' -f2
 	fi
 }
 
-if [ -e "/lib/modules/$kernelver/build/scripts/cc-version.sh" ]; then
-	KERNEL_GCC_VERSION="$(grep ^CONFIG_GCC_VERSION= "/lib/modules/$kernelver/build/.config" | cut -d= -f2)"
+if [ -e "$kernel_source_dir/scripts/cc-version.sh" ]; then
+	KERNEL_GCC_VERSION="$(grep ^CONFIG_GCC_VERSION= "$kernel_source_dir/.config" | cut -d= -f2)"
 
 	if [ "$KERNEL_GCC_VERSION" -gt "$(get_cc_version)" ] && command -v scl >/dev/null; then
 		for COLLECTION in $(scl list-collections); do