zdev/dracut: use namespace prefix in functions of zdev-lib.sh

Use namespace prefix in functions of zdev-lib.sh to avoid collisions with
different modules being sourced in the shell.

Github-ID: https://github.com/ibm-s390-linux/s390-tools/pull/158
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Acked-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>

zdev/dracut/95zdev-kdump/module-setup.sh

@@ -22,7 +22,7 @@ check() {
     source "${moddir:?}/../95zdev/zdev-lib.sh"
 
     # Ensure this module is only included when building kdump initrd
-    is_kdump || return 1
+    zdev_is_kdump || return 1
 
     # Ensure that required tools are available
     require_binaries chzdev || return 1

zdev/dracut/95zdev/module-setup.sh

@@ -25,7 +25,7 @@ check() {
 
     # Leave kdump device configuration to module zdev-kdump to
     # ensure a minimal device footprint
-    is_kdump && return 1
+    zdev_is_kdump && return 1
 
     # Ensure that required tools are available
     require_binaries chzdev lszdev /lib/s390-tools/zdev_id || return 1

zdev/dracut/95zdev/zdev-lib.sh

@@ -10,7 +10,7 @@
 #
 # shellcheck shell=bash
 
-is_kdump() {
+zdev_is_kdump() {
     # https://src.fedoraproject.org/rpms/kexec-tools/c/4eedcae5e1540690a3761857fe2e692774c44960
     # https://src.fedoraproject.org/rpms/kexec-tools/blob/rawhide/f/mkdumprd
     # https://src.fedoraproject.org/rpms/kexec-tools/blob/rawhide/f/dracut-module-setup.sh