File kdump-add-watchdog-modules.patch of Package kdump.23238

Index: kdump-0.8.16/init/module-setup.sh
===================================================================
--- kdump-0.8.16.orig/init/module-setup.sh	2021-09-24 17:18:51.211450946 +0200
+++ kdump-0.8.16/init/module-setup.sh	2021-09-24 17:19:18.355447232 +0200
@@ -148,6 +148,9 @@ depends() {
     # drm is needed to get console output, but it is not included
     # automatically, because kdump does not use plymouth
     _modules[drm]=
+    
+    # add watchdog modules (bsc#1189923)
+    _modules[watchdog-modules]=
 
     [ "$kdump_neednet" = y ] && _modules[network]=
 
Index: kdump-0.8.16/init/CMakeLists.txt
===================================================================
--- kdump-0.8.16.orig/init/CMakeLists.txt	2021-09-24 17:18:51.211450946 +0200
+++ kdump-0.8.16/init/CMakeLists.txt	2021-09-24 17:19:18.355447232 +0200
@@ -111,6 +111,19 @@ INSTALL(
 
 INSTALL(
     FILES
+        ${CMAKE_CURRENT_SOURCE_DIR}/watchdog-modules-module-setup.sh
+    RENAME
+    	module-setup.sh
+    DESTINATION
+        /usr/lib/dracut/modules.d/05watchdog-modules
+    PERMISSIONS
+        OWNER_READ OWNER_WRITE OWNER_EXECUTE
+        GROUP_READ GROUP_EXECUTE
+        WORLD_READ WORLD_EXECUTE
+)
+
+INSTALL(
+    FILES
         ${CMAKE_CURRENT_SOURCE_DIR}/kdump-save.service.in
     DESTINATION
         /usr/lib/dracut/modules.d/99kdump
Index: kdump-0.8.16/init/watchdog-modules-module-setup.sh
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ kdump-0.8.16/init/watchdog-modules-module-setup.sh	2021-09-24 17:21:06.931430951 +0200
@@ -0,0 +1,63 @@
+#!/bin/bash
+# included in the kdump package to backport the watchdog-modules dracut functionality from
+# newer dracut versions (bsc#1189923)
+
+# called by dracut
+check() {
+    return 255
+}
+
+# called by dracut
+depends() {
+    return 0
+}
+
+# called by dracut
+install() {
+    return 0
+}
+
+installkernel() {
+    local -A _drivers
+    local _alldrivers _wdtdrv _wdtppath _dir
+    [[ -d /sys/class/watchdog/ ]] || return 0
+    for _dir in /sys/class/watchdog/*; do
+        [[ -d "$_dir" ]] || continue
+        [[ -f "$_dir/state" ]] || continue
+        # device/modalias will return driver of this device
+        _wdtdrv=$(< "$_dir/device/modalias")
+        # There can be more than one module represented by same
+        # modalias. Currently load all of them.
+        # TODO: Need to find a way to avoid any unwanted module
+        # represented by modalias
+        _wdtdrv=$(modprobe --set-version "$kernel" -R $_wdtdrv 2>/dev/null)
+        if [[ $_wdtdrv ]]; then
+            instmods $_wdtdrv
+            for i in $_wdtdrv; do
+                _drivers[$i]=1
+            done
+        fi
+        # however in some cases, we also need to check that if there is
+        # a specific driver for the parent bus/device.  In such cases
+        # we also need to enable driver for parent bus/device.
+        _wdtppath=$(readlink -f "$_dir/device")
+        while [[ -d "$_wdtppath" ]] && [[ "$_wdtppath" != "/sys" ]]; do
+            _wdtppath=$(readlink -f "$_wdtppath/..")
+            [[ -f "$_wdtppath/modalias" ]] || continue
+
+            _wdtdrv=$(< "$_wdtppath/modalias")
+            _wdtdrv=$(modprobe --set-version "$kernel" -R $_wdtdrv 2>/dev/null)
+            if [[ $_wdtdrv ]]; then
+                instmods $_wdtdrv
+                for i in $_wdtdrv; do
+                    _drivers[$i]=1
+                done
+            fi
+        done
+    done
+    # ensure that watchdog module is loaded as early as possible
+    _alldrivers="${!_drivers[*]}"
+    [[ $_alldrivers ]] && echo "rd.driver.pre=${_alldrivers// /,}" > ${initdir}/etc/cmdline.d/00-watchdog.conf
+
+    return 0
+}