selftests: livepatch: rename KLP_SYSFS_DIR to SYSFS_KLP_DIR

This naming makes more sense according to the directory structure.
Especially when we later add more paths.

Addtionally replace `/sys/kernel/livepatch` with `$SYSFS_KLP_DIR` in
the livepatch test files.

Signed-off-by: Michael Vetter <mvetter@suse.com>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Reviewed-by: Joe Lawrence <joe.lawrence@redhat.com>
Tested-by: Marcos Paulo de Souza <mpdesouza@suse.com>
Reviewed-by: Marcos Paulo de Souza <mpdesouza@suse.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Tested-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20241017200132.21946-2-mvetter@suse.com
[pmladek@suse.com: Fix corrupted substitution]
Signed-off-by: Petr Mladek <pmladek@suse.com>

Author: jubalh

tools/testing/selftests/livepatch/functions.sh

@@ -6,7 +6,7 @@
 
 MAX_RETRIES=600
 RETRY_INTERVAL=".1"	# seconds
-KLP_SYSFS_DIR="/sys/kernel/livepatch"
+SYSFS_KLP_DIR="/sys/kernel/livepatch"
 
 # Kselftest framework requirement - SKIP code is 4
 ksft_skip=4
@@ -183,7 +183,7 @@ function load_lp_nowait() {
 	__load_mod "$mod" "$@"
 
 	# Wait for livepatch in sysfs ...
-	loop_until '[[ -e "/sys/kernel/livepatch/$mod" ]]' ||
+	loop_until '[[ -e "$SYSFS_KLP_DIR/$mod" ]]' ||
 		die "failed to load module $mod (sysfs)"
 }
 
@@ -196,7 +196,7 @@ function load_lp() {
 	load_lp_nowait "$mod" "$@"
 
 	# Wait until the transition finishes ...
-	loop_until 'grep -q '^0$' /sys/kernel/livepatch/$mod/transition' ||
+	loop_until 'grep -q '^0$' $SYSFS_KLP_DIR/$mod/transition' ||
 		die "failed to complete transition"
 }
 
@@ -246,12 +246,12 @@ function unload_lp() {
 function disable_lp() {
 	local mod="$1"
 
-	log "% echo 0 > /sys/kernel/livepatch/$mod/enabled"
-	echo 0 > /sys/kernel/livepatch/"$mod"/enabled
+	log "% echo 0 > $SYSFS_KLP_DIR/$mod/enabled"
+	echo 0 > "$SYSFS_KLP_DIR/$mod/enabled"
 
 	# Wait until the transition finishes and the livepatch gets
 	# removed from sysfs...
-	loop_until '[[ ! -e "/sys/kernel/livepatch/$mod" ]]' ||
+	loop_until '[[ ! -e "$SYSFS_KLP_DIR/$mod" ]]' ||
 		die "failed to disable livepatch $mod"
 }
 
@@ -322,7 +322,7 @@ function check_sysfs_rights() {
 	local rel_path="$1"; shift
 	local expected_rights="$1"; shift
 
-	local path="$KLP_SYSFS_DIR/$mod/$rel_path"
+	local path="$SYSFS_KLP_DIR/$mod/$rel_path"
 	local rights=$(/bin/stat --format '%A' "$path")
 	if test "$rights" != "$expected_rights" ; then
 		die "Unexpected access rights of $path: $expected_rights vs. $rights"
@@ -338,7 +338,7 @@ function check_sysfs_value() {
 	local rel_path="$1"; shift
 	local expected_value="$1"; shift
 
-	local path="$KLP_SYSFS_DIR/$mod/$rel_path"
+	local path="$SYSFS_KLP_DIR/$mod/$rel_path"
 	local value=`cat $path`
 	if test "$value" != "$expected_value" ; then
 		die "Unexpected value in $path: $expected_value vs. $value"

tools/testing/selftests/livepatch/test-callbacks.sh

@@ -46,7 +46,7 @@ livepatch: '$MOD_LIVEPATCH': completing patching transition
 $MOD_LIVEPATCH: post_patch_callback: vmlinux
 $MOD_LIVEPATCH: post_patch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
 livepatch: '$MOD_LIVEPATCH': patching complete
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 $MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
 $MOD_LIVEPATCH: pre_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
@@ -94,7 +94,7 @@ livepatch: applying patch '$MOD_LIVEPATCH' to loading module '$MOD_TARGET'
 $MOD_LIVEPATCH: pre_patch_callback: $MOD_TARGET -> [MODULE_STATE_COMING] Full formed, running module_init
 $MOD_LIVEPATCH: post_patch_callback: $MOD_TARGET -> [MODULE_STATE_COMING] Full formed, running module_init
 $MOD_TARGET: ${MOD_TARGET}_init
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 $MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
 $MOD_LIVEPATCH: pre_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
@@ -146,7 +146,7 @@ $MOD_TARGET: ${MOD_TARGET}_exit
 $MOD_LIVEPATCH: pre_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
 livepatch: reverting patch '$MOD_LIVEPATCH' on unloading module '$MOD_TARGET'
 $MOD_LIVEPATCH: post_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 $MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
 livepatch: '$MOD_LIVEPATCH': starting unpatching transition
@@ -195,7 +195,7 @@ $MOD_TARGET: ${MOD_TARGET}_exit
 $MOD_LIVEPATCH: pre_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
 livepatch: reverting patch '$MOD_LIVEPATCH' on unloading module '$MOD_TARGET'
 $MOD_LIVEPATCH: post_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 $MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
 livepatch: '$MOD_LIVEPATCH': starting unpatching transition
@@ -227,7 +227,7 @@ livepatch: '$MOD_LIVEPATCH': starting patching transition
 livepatch: '$MOD_LIVEPATCH': completing patching transition
 $MOD_LIVEPATCH: post_patch_callback: vmlinux
 livepatch: '$MOD_LIVEPATCH': patching complete
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 $MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
 livepatch: '$MOD_LIVEPATCH': starting unpatching transition
@@ -310,7 +310,7 @@ $MOD_LIVEPATCH: pre_patch_callback: $MOD_TARGET -> [MODULE_STATE_COMING] Full fo
 livepatch: pre-patch callback failed for object '$MOD_TARGET'
 livepatch: patch '$MOD_LIVEPATCH' failed for module '$MOD_TARGET', refusing to load module '$MOD_TARGET'
 insmod: ERROR: could not insert module test_modules/$MOD_TARGET.ko: No such device
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 $MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
 livepatch: '$MOD_LIVEPATCH': starting unpatching transition
@@ -364,7 +364,7 @@ $MOD_TARGET: ${MOD_TARGET}_exit
 $MOD_LIVEPATCH: pre_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
 livepatch: reverting patch '$MOD_LIVEPATCH' on unloading module '$MOD_TARGET'
 $MOD_LIVEPATCH: post_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 $MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
 $MOD_LIVEPATCH: pre_unpatch_callback: $MOD_TARGET_BUSY -> [MODULE_STATE_LIVE] Normal state
@@ -412,7 +412,7 @@ load_lp_nowait $MOD_LIVEPATCH
 
 # Wait until the livepatch reports in-transition state, i.e. that it's
 # stalled on $MOD_TARGET_BUSY::busymod_work_func()
-loop_until 'grep -q '^1$' /sys/kernel/livepatch/$MOD_LIVEPATCH/transition' ||
+loop_until 'grep -q '^1$' $SYSFS_KLP_DIR/$MOD_LIVEPATCH/transition' ||
 	die "failed to stall transition"
 
 load_mod $MOD_TARGET
@@ -438,7 +438,7 @@ $MOD_TARGET: ${MOD_TARGET}_init
 $MOD_TARGET: ${MOD_TARGET}_exit
 livepatch: reverting patch '$MOD_LIVEPATCH' on unloading module '$MOD_TARGET'
 $MOD_LIVEPATCH: post_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': reversing transition from patching to unpatching
 livepatch: '$MOD_LIVEPATCH': starting unpatching transition
 livepatch: '$MOD_LIVEPATCH': completing unpatching transition
@@ -483,14 +483,14 @@ livepatch: '$MOD_LIVEPATCH2': starting patching transition
 livepatch: '$MOD_LIVEPATCH2': completing patching transition
 $MOD_LIVEPATCH2: post_patch_callback: vmlinux
 livepatch: '$MOD_LIVEPATCH2': patching complete
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH2/enabled
 livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
 $MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
 livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
 livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
 $MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
 livepatch: '$MOD_LIVEPATCH2': unpatching complete
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 $MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
 livepatch: '$MOD_LIVEPATCH': starting unpatching transition
@@ -539,7 +539,7 @@ livepatch: '$MOD_LIVEPATCH2': starting patching transition
 livepatch: '$MOD_LIVEPATCH2': completing patching transition
 $MOD_LIVEPATCH2: post_patch_callback: vmlinux
 livepatch: '$MOD_LIVEPATCH2': patching complete
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH2/enabled
 livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
 $MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
 livepatch: '$MOD_LIVEPATCH2': starting unpatching transition

tools/testing/selftests/livepatch/test-ftrace.sh

@@ -53,7 +53,7 @@ livepatch: '$MOD_LIVEPATCH': starting patching transition
 livepatch: '$MOD_LIVEPATCH': completing patching transition
 livepatch: '$MOD_LIVEPATCH': patching complete
 livepatch: sysctl: setting key \"kernel.ftrace_enabled\": Device or resource busy
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 livepatch: '$MOD_LIVEPATCH': starting unpatching transition
 livepatch: '$MOD_LIVEPATCH': completing unpatching transition

tools/testing/selftests/livepatch/test-livepatch.sh

@@ -39,7 +39,7 @@ livepatch: '$MOD_LIVEPATCH1': initializing patching transition
 livepatch: '$MOD_LIVEPATCH1': starting patching transition
 livepatch: '$MOD_LIVEPATCH1': completing patching transition
 livepatch: '$MOD_LIVEPATCH1': patching complete
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH1/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH1/enabled
 livepatch: '$MOD_LIVEPATCH1': initializing unpatching transition
 livepatch: '$MOD_LIVEPATCH1': starting unpatching transition
 livepatch: '$MOD_LIVEPATCH1': completing unpatching transition
@@ -92,14 +92,14 @@ livepatch: '$MOD_REPLACE': completing patching transition
 livepatch: '$MOD_REPLACE': patching complete
 $MOD_LIVEPATCH1: this has been live patched
 $MOD_REPLACE: this has been live patched
-% echo 0 > /sys/kernel/livepatch/$MOD_REPLACE/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_REPLACE/enabled
 livepatch: '$MOD_REPLACE': initializing unpatching transition
 livepatch: '$MOD_REPLACE': starting unpatching transition
 livepatch: '$MOD_REPLACE': completing unpatching transition
 livepatch: '$MOD_REPLACE': unpatching complete
 % rmmod $MOD_REPLACE
 $MOD_LIVEPATCH1: this has been live patched
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH1/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH1/enabled
 livepatch: '$MOD_LIVEPATCH1': initializing unpatching transition
 livepatch: '$MOD_LIVEPATCH1': starting unpatching transition
 livepatch: '$MOD_LIVEPATCH1': completing unpatching transition
@@ -128,7 +128,7 @@ for mod in $MOD_LIVEPATCH2 $MOD_LIVEPATCH3; do
 	load_lp "$mod"
 done
 
-mods=(/sys/kernel/livepatch/*)
+mods=($SYSFS_KLP_DIR/*)
 nmods=${#mods[@]}
 if [ "$nmods" -ne 3 ]; then
 	die "Expecting three modules listed, found $nmods"
@@ -139,7 +139,7 @@ load_lp $MOD_REPLACE replace=1
 grep 'live patched' /proc/cmdline > /dev/kmsg
 grep 'live patched' /proc/meminfo > /dev/kmsg
 
-loop_until 'mods=(/sys/kernel/livepatch/*); nmods=${#mods[@]}; [[ "$nmods" -eq 1 ]]' ||
+loop_until 'mods=($SYSFS_KLP_DIR/*); nmods=${#mods[@]}; [[ "$nmods" -eq 1 ]]' ||
         die "Expecting only one moduled listed, found $nmods"
 
 # These modules were disabled by the atomic replace
@@ -188,7 +188,7 @@ $MOD_REPLACE: this has been live patched
 % rmmod $MOD_LIVEPATCH2
 % rmmod $MOD_LIVEPATCH1
 $MOD_REPLACE: this has been live patched
-% echo 0 > /sys/kernel/livepatch/$MOD_REPLACE/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_REPLACE/enabled
 livepatch: '$MOD_REPLACE': initializing unpatching transition
 livepatch: '$MOD_REPLACE': starting unpatching transition
 livepatch: '$MOD_REPLACE': completing unpatching transition

tools/testing/selftests/livepatch/test-state.sh

@@ -29,7 +29,7 @@ livepatch: '$MOD_LIVEPATCH': completing patching transition
 $MOD_LIVEPATCH: post_patch_callback: vmlinux
 $MOD_LIVEPATCH: fix_console_loglevel: fixing console_loglevel
 livepatch: '$MOD_LIVEPATCH': patching complete
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 $MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
 $MOD_LIVEPATCH: restore_console_loglevel: restoring console_loglevel
@@ -72,7 +72,7 @@ $MOD_LIVEPATCH2: post_patch_callback: vmlinux
 $MOD_LIVEPATCH2: fix_console_loglevel: taking over the console_loglevel change
 livepatch: '$MOD_LIVEPATCH2': patching complete
 % rmmod $MOD_LIVEPATCH
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH2/enabled
 livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
 $MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
 $MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
@@ -127,7 +127,7 @@ livepatch: '$MOD_LIVEPATCH2': completing patching transition
 $MOD_LIVEPATCH2: post_patch_callback: vmlinux
 $MOD_LIVEPATCH2: fix_console_loglevel: taking over the console_loglevel change
 livepatch: '$MOD_LIVEPATCH2': patching complete
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH2/enabled
 livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
 $MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
 $MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
@@ -162,7 +162,7 @@ livepatch: '$MOD_LIVEPATCH2': patching complete
 % insmod test_modules/$MOD_LIVEPATCH.ko
 livepatch: Livepatch patch ($MOD_LIVEPATCH) is not compatible with the already installed livepatches.
 insmod: ERROR: could not insert module test_modules/$MOD_LIVEPATCH.ko: Invalid parameters
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH2/enabled
 livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
 $MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
 $MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel

tools/testing/selftests/livepatch/test-syscall.sh

@@ -46,7 +46,7 @@ livepatch: '$MOD_SYSCALL': starting patching transition
 livepatch: '$MOD_SYSCALL': completing patching transition
 livepatch: '$MOD_SYSCALL': patching complete
 $MOD_SYSCALL: Remaining not livepatched processes: 0
-% echo 0 > /sys/kernel/livepatch/$MOD_SYSCALL/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_SYSCALL/enabled
 livepatch: '$MOD_SYSCALL': initializing unpatching transition
 livepatch: '$MOD_SYSCALL': starting unpatching transition
 livepatch: '$MOD_SYSCALL': completing unpatching transition

tools/testing/selftests/livepatch/test-sysfs.sh

@@ -34,7 +34,7 @@ livepatch: '$MOD_LIVEPATCH': initializing patching transition
 livepatch: '$MOD_LIVEPATCH': starting patching transition
 livepatch: '$MOD_LIVEPATCH': completing patching transition
 livepatch: '$MOD_LIVEPATCH': patching complete
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 livepatch: '$MOD_LIVEPATCH': starting unpatching transition
 livepatch: '$MOD_LIVEPATCH': completing unpatching transition
@@ -75,7 +75,7 @@ test_klp_callbacks_mod: test_klp_callbacks_mod_exit
 test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away
 livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod'
 test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away
-% echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled
+% echo 0 > $SYSFS_KLP_DIR/test_klp_callbacks_demo/enabled
 livepatch: 'test_klp_callbacks_demo': initializing unpatching transition
 test_klp_callbacks_demo: pre_unpatch_callback: vmlinux
 livepatch: 'test_klp_callbacks_demo': starting unpatching transition
@@ -101,7 +101,7 @@ livepatch: '$MOD_LIVEPATCH': initializing patching transition
 livepatch: '$MOD_LIVEPATCH': starting patching transition
 livepatch: '$MOD_LIVEPATCH': completing patching transition
 livepatch: '$MOD_LIVEPATCH': patching complete
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 livepatch: '$MOD_LIVEPATCH': starting unpatching transition
 livepatch: '$MOD_LIVEPATCH': completing unpatching transition
@@ -124,7 +124,7 @@ livepatch: '$MOD_LIVEPATCH': initializing patching transition
 livepatch: '$MOD_LIVEPATCH': starting patching transition
 livepatch: '$MOD_LIVEPATCH': completing patching transition
 livepatch: '$MOD_LIVEPATCH': patching complete
-% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 livepatch: '$MOD_LIVEPATCH': starting unpatching transition
 livepatch: '$MOD_LIVEPATCH': completing unpatching transition