user_exit_irqoff() -> __context_tracking_exit -> vtime_user_exit
warns in __seqprop_assert due to lockdep thinking preemption is enabled
because trace_hardirqs_off() has not yet been called.

Switch the order of these two calls, which matches their ordering in
interrupt_enter_prepare.

Fixes: 5f0b6ac3905f ("powerpc/64/syscall: Reconcile interrupts")
Signed-off-by: Nicholas Piggin <npig...@gmail.com>
---
 arch/powerpc/kernel/interrupt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/interrupt.c b/arch/powerpc/kernel/interrupt.c
index 2ef3c4051bb9..38ee41f8844a 100644
--- a/arch/powerpc/kernel/interrupt.c
+++ b/arch/powerpc/kernel/interrupt.c
@@ -34,11 +34,11 @@ notrace long system_call_exception(long r3, long r4, long 
r5,
        if (IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG))
                BUG_ON(irq_soft_mask_return() != IRQS_ALL_DISABLED);
 
+       trace_hardirqs_off(); /* finish reconciling */
+
        CT_WARN_ON(ct_state() == CONTEXT_KERNEL);
        user_exit_irqoff();
 
-       trace_hardirqs_off(); /* finish reconciling */
-
        if (!IS_ENABLED(CONFIG_BOOKE) && !IS_ENABLED(CONFIG_40x))
                BUG_ON(!(regs->msr & MSR_RI));
        BUG_ON(!(regs->msr & MSR_PR));
-- 
2.23.0

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