Add the missing lockdep annotation to avoid this kernel warning: smp: Brought up 1 node, 1 CPU 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+ #683 Hardware name: 9000/785/C3700 Backtrace: [<000000004030bcd0>] show_stack+0x74/0xb0 [<000000004146c63c>] dump_stack_lvl+0x104/0x180 [<000000004146c6ec>] dump_stack+0x34/0x48 [<000000004040e5b4>] register_lock_class+0xd24/0xd30 [<000000004040c21c>] __lock_acquire.isra.0+0xb4/0xac8 [<000000004040cd60>] lock_acquire+0x130/0x298 [<000000004147095c>] _raw_spin_lock_irq+0x60/0xb8 [<0000000041474a4c>] wait_for_completion+0xa0/0x2d0 [<000000004012bf04>] page_alloc_init_late+0xf8/0x2b0 [<0000000040102b20>] kernel_init_freeable+0x464/0x7f0 [<000000004146df68>] kernel_init+0x64/0x3a8 [<0000000040302020>] ret_from_kernel_thread+0x20/0x28 Signed-off-by: Helge Deller <deller@xxxxxx> diff --git a/mm/mm_init.c b/mm/mm_init.c index a1963c3322af..b390b4b27dad 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -2377,6 +2377,7 @@ void __init page_alloc_init_late(void) int nid; #ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT + init_completion(&pgdat_init_all_done_comp); /* There will be num_node_state(N_MEMORY) threads */ atomic_set(&pgdat_init_n_undone, num_node_state(N_MEMORY));
