The quilt patch titled
Subject: init: add lockdep annotation to kthreadd_done completer
has been removed from the -mm tree. Its filename was
init-add-lockdep-annotation-to-kthreadd_done-completer.patch
This patch was dropped because it was withdrawn
------------------------------------------------------
From: Helge Deller <deller@xxxxxx>
Subject: init: add lockdep annotation to kthreadd_done completer
Date: Fri, 11 Aug 2023 18:04:22 +0200
Add the missing lockdep annotation to avoid this warning:
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.5.0-rc5+ #681
Hardware name: 9000/785/C3700
Backtrace:
[<000000004030bcd0>] show_stack+0x74/0xb0
[<0000000041469c7c>] dump_stack_lvl+0x104/0x180
[<0000000041469d2c>] dump_stack+0x34/0x48
[<000000004040e5b4>] register_lock_class+0xd24/0xd30
[<000000004040c21c>] __lock_acquire.isra.0+0xb4/0xac8
[<000000004040cd60>] lock_acquire+0x130/0x298
[<000000004146df54>] _raw_spin_lock_irq+0x60/0xb8
[<0000000041472044>] wait_for_completion+0xa0/0x2d0
[<000000004146b544>] kernel_init+0x48/0x3a8
[<0000000040302020>] ret_from_kernel_thread+0x20/0x28
Link: https://lkml.kernel.org/r/ZNZcBkiVkm87+Tvr@p100
Signed-off-by: Helge Deller <deller@xxxxxx>
Cc: Mike Rapoport (IBM) <rppt@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
init/main.c | 2 ++
1 file changed, 2 insertions(+)
--- a/init/main.c~init-add-lockdep-annotation-to-kthreadd_done-completer
+++ a/init/main.c
@@ -682,6 +682,8 @@ noinline void __ref __noreturn rest_init
struct task_struct *tsk;
int pid;
+ init_completion(&kthreadd_done);
+
rcu_scheduler_starting();
/*
* We need to spawn init first so that it obtains pid 1, however
_
Patches currently in -mm which might be from deller@xxxxxx are
watchdog-fix-lockdep-warning.patch
