[PATCH v2 7/8] liveupdate: Remove liveupdate_test_unregister()

From: Pasha Tatashin

Date: Wed Mar 18 2026 - 10:34:30 EST


Now that file handler unregistration automatically unregisters all
associated file handlers (FLBs), the liveupdate_test_unregister()
function is no longer needed. Remove it along with its usages
and declarations.

Signed-off-by: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
---
kernel/liveupdate/luo_file.c | 2 --
kernel/liveupdate/luo_internal.h | 2 --
lib/tests/liveupdate.c | 18 ------------------
3 files changed, 22 deletions(-)

diff --git a/kernel/liveupdate/luo_file.c b/kernel/liveupdate/luo_file.c
index b9ba1b8dce84..c9c26015020b 100644
--- a/kernel/liveupdate/luo_file.c
+++ b/kernel/liveupdate/luo_file.c
@@ -879,8 +879,6 @@ int liveupdate_unregister_file_handler(struct liveupdate_file_handler *fh)
if (!liveupdate_enabled())
return -EOPNOTSUPP;

- liveupdate_test_unregister(fh);
-
scoped_guard(rwsem_write, &luo_file_handler_lock) {
luo_flb_unregister_all(fh);
list_del(&ACCESS_PRIVATE(fh, list));
diff --git a/kernel/liveupdate/luo_internal.h b/kernel/liveupdate/luo_internal.h
index 730c3faa7616..137ae317188a 100644
--- a/kernel/liveupdate/luo_internal.h
+++ b/kernel/liveupdate/luo_internal.h
@@ -108,10 +108,8 @@ void luo_flb_serialize(void);

#ifdef CONFIG_LIVEUPDATE_TEST
void liveupdate_test_register(struct liveupdate_file_handler *fh);
-void liveupdate_test_unregister(struct liveupdate_file_handler *fh);
#else
static inline void liveupdate_test_register(struct liveupdate_file_handler *fh) { }
-static inline void liveupdate_test_unregister(struct liveupdate_file_handler *fh) { }
#endif

#endif /* _LINUX_LUO_INTERNAL_H */
diff --git a/lib/tests/liveupdate.c b/lib/tests/liveupdate.c
index 496d6ef91a30..e4b0ecbee32f 100644
--- a/lib/tests/liveupdate.c
+++ b/lib/tests/liveupdate.c
@@ -135,24 +135,6 @@ void liveupdate_test_register(struct liveupdate_file_handler *fh)
TEST_NFLBS, fh->compatible);
}

-void liveupdate_test_unregister(struct liveupdate_file_handler *fh)
-{
- int err, i;
-
- for (i = 0; i < TEST_NFLBS; i++) {
- struct liveupdate_flb *flb = &test_flbs[i];
-
- err = liveupdate_unregister_flb(fh, flb);
- if (err) {
- pr_err("Failed to unregister %s %pe\n",
- flb->compatible, ERR_PTR(err));
- }
- }
-
- pr_info("Unregistered %d FLBs from file handler: [%s]\n",
- TEST_NFLBS, fh->compatible);
-}
-
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>");
MODULE_DESCRIPTION("In-kernel test for LUO mechanism");
--
2.53.0.851.ga537e3e6e9-goog