4.19-stable review patch. If anyone has any objections, please let me know.
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From: Zqiang qiang.zhang1211@gmail.com
[ Upstream commit 77aeb1b685f9db73d276bad4bb30d48505a6fd23 ]
For CONFIG_DEBUG_OBJECTS_WORK=y kernels sscs.work defined by INIT_WORK_ONSTACK() is initialized by debug_object_init_on_stack() for the debug check in __init_work() to work correctly.
But this lacks the counterpart to remove the tracked object from debug objects again, which will cause a debug object warning once the stack is freed.
Add the missing destroy_work_on_stack() invocation to cure that.
[ tglx: Massaged changelog ]
Signed-off-by: Zqiang qiang.zhang1211@gmail.com Signed-off-by: Thomas Gleixner tglx@linutronix.de Tested-by: Paul E. McKenney paulmck@kernel.org Link: https://lore.kernel.org/r/20240704065213.13559-1-qiang.zhang1211@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/smp.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/kernel/smp.c b/kernel/smp.c index 9fa2fe6c0c05..c5f333258ecf 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -791,6 +791,7 @@ int smp_call_on_cpu(unsigned int cpu, int (*func)(void *), void *par, bool phys)
queue_work_on(cpu, system_wq, &sscs.work); wait_for_completion(&sscs.done); + destroy_work_on_stack(&sscs.work);
return sscs.ret; }