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selftests: livepatch: Check if stack_order sysfs attribute exists

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The commit 3dae09de40 ("livepatch: Add stack_order sysfs attribute"),
merged in v6.14, introduced a new sysfs attribute.

In order to run the selftests on older kernels, check if given kernel
has support for the attribute. If the attribute is not supported, skip
the checks.

Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Link: https://patch.msgid.link/20260504-lp-tests-old-fixes-v5-6-0be26d94ab9a@suse.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
This commit is contained in:
Marcos Paulo de Souza 2026-05-04 15:34:47 -03:00 committed by Petr Mladek
parent 1f4cbeec25
commit 8f7168335c
1 changed files with 25 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
tools/testing/selftests/livepatch/test-sysfs.sh
View File

@ -10,6 +10,7 @@ MOD_LIVEPATCH3=test_klp_syscall
HAS_PATCH_ATTR=0
HAS_REPLACE_ATTR=0
HAS_STACK_ORDER_ATTR=0
setup_config
@ -23,8 +24,6 @@ check_sysfs_rights "$MOD_LIVEPATCH" "" "drwxr-xr-x"
check_sysfs_rights "$MOD_LIVEPATCH" "enabled" "-rw-r--r--"
check_sysfs_value "$MOD_LIVEPATCH" "enabled" "1"
check_sysfs_rights "$MOD_LIVEPATCH" "force" "--w-------"
check_sysfs_rights "$MOD_LIVEPATCH" "stack_order" "-r--r--r--"
check_sysfs_value "$MOD_LIVEPATCH" "stack_order" "1"
check_sysfs_rights "$MOD_LIVEPATCH" "transition" "-r--r--r--"
check_sysfs_value "$MOD_LIVEPATCH" "transition" "0"
@ -39,6 +38,12 @@ if does_sysfs_exist "$MOD_LIVEPATCH" "replace"; then
HAS_REPLACE_ATTR=1
fi
if does_sysfs_exist "$MOD_LIVEPATCH" "stack_order"; then
check_sysfs_rights "$MOD_LIVEPATCH" "stack_order" "-r--r--r--"
check_sysfs_value "$MOD_LIVEPATCH" "stack_order" "1"
HAS_STACK_ORDER_ATTR=1
fi
disable_lp $MOD_LIVEPATCH
unload_lp $MOD_LIVEPATCH
@ -149,33 +154,34 @@ livepatch: '$MOD_ATOMIC_REPLACE': unpatching complete
% rmmod $MOD_ATOMIC_REPLACE"
fi
start_test "sysfs test stack_order value"
if [[ "$HAS_STACK_ORDER_ATTR" == "1" ]]; then
start_test "sysfs test stack_order value"
load_lp $MOD_LIVEPATCH
load_lp $MOD_LIVEPATCH
check_sysfs_value "$MOD_LIVEPATCH" "stack_order" "1"
check_sysfs_value "$MOD_LIVEPATCH" "stack_order" "1"
load_lp $MOD_LIVEPATCH2
load_lp $MOD_LIVEPATCH2
check_sysfs_value "$MOD_LIVEPATCH2" "stack_order" "2"
check_sysfs_value "$MOD_LIVEPATCH2" "stack_order" "2"
load_lp $MOD_LIVEPATCH3
load_lp $MOD_LIVEPATCH3
check_sysfs_value "$MOD_LIVEPATCH3" "stack_order" "3"
check_sysfs_value "$MOD_LIVEPATCH3" "stack_order" "3"
disable_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH2
disable_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH2
check_sysfs_value "$MOD_LIVEPATCH" "stack_order" "1"
check_sysfs_value "$MOD_LIVEPATCH3" "stack_order" "2"
check_sysfs_value "$MOD_LIVEPATCH" "stack_order" "1"
check_sysfs_value "$MOD_LIVEPATCH3" "stack_order" "2"
disable_lp $MOD_LIVEPATCH3
unload_lp $MOD_LIVEPATCH3
disable_lp $MOD_LIVEPATCH3
unload_lp $MOD_LIVEPATCH3
disable_lp $MOD_LIVEPATCH
unload_lp $MOD_LIVEPATCH
disable_lp $MOD_LIVEPATCH
unload_lp $MOD_LIVEPATCH
check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
livepatch: enabling patch '$MOD_LIVEPATCH'
livepatch: '$MOD_LIVEPATCH': initializing patching transition
livepatch: '$MOD_LIVEPATCH': starting patching transition
@ -215,5 +221,6 @@ livepatch: '$MOD_LIVEPATCH': starting unpatching transition
livepatch: '$MOD_LIVEPATCH': completing unpatching transition
livepatch: '$MOD_LIVEPATCH': unpatching complete
% rmmod $MOD_LIVEPATCH"
fi
exit 0