+ liveupdate-remove-liveupdate_test_unregister.patch added to mm-new branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: liveupdate: remove liveupdate_test_unregister()
has been added to the -mm mm-new branch.  Its filename is
     liveupdate-remove-liveupdate_test_unregister.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/liveupdate-remove-liveupdate_test_unregister.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

The mm-new branch of mm.git is not included in linux-next

If a few days of testing in mm-new is successful, the patch will me moved
into mm.git's mm-unstable branch, which is included in linux-next

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------------------------------------------------------
From: Pasha Tatashin <pasha.tatashin@soleen.com>
Subject: liveupdate: remove liveupdate_test_unregister()
Date: Wed, 18 Mar 2026 10:16:45 -0400

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.

Link: https://lkml.kernel.org/r/20260318141637.1870220-17-pasha.tatashin@soleen.com
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: David Matlack <dmatlack@google.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Pratyush Yadav <pratyush@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/liveupdate/luo_file.c     |    2 --
 kernel/liveupdate/luo_internal.h |    2 --
 lib/tests/liveupdate.c           |   18 ------------------
 3 files changed, 22 deletions(-)

--- a/kernel/liveupdate/luo_file.c~liveupdate-remove-liveupdate_test_unregister
+++ a/kernel/liveupdate/luo_file.c
@@ -879,8 +879,6 @@ int liveupdate_unregister_file_handler(s
 	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));
--- a/kernel/liveupdate/luo_internal.h~liveupdate-remove-liveupdate_test_unregister
+++ a/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 */
--- a/lib/tests/liveupdate.c~liveupdate-remove-liveupdate_test_unregister
+++ a/lib/tests/liveupdate.c
@@ -135,24 +135,6 @@ void liveupdate_test_register(struct liv
 		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@soleen.com>");
 MODULE_DESCRIPTION("In-kernel test for LUO mechanism");
_

Patches currently in -mm which might be from pasha.tatashin@soleen.com are

mm-vmalloc-export-clear_vm_uninitialized_flag.patch
kho-fix-kasan-support-for-restored-vmalloc-regions.patch
liveupdate-protect-file-handler-list-with-rwsem.patch
liveupdate-protect-flb-lists-with-rwsem.patch
liveupdate-remove-file-handler-module-refcounting.patch
liveupdate-defer-flb-module-refcounting-to-active-sessions.patch
liveupdate-remove-luo_session_quiesce.patch
liveupdate-auto-unregister-flbs-on-file-handler-unregistration.patch
liveupdate-remove-liveupdate_test_unregister.patch
liveupdate-make-unregister-functions-return-void.patch