add REDIRECT

hc

2024-10-09 05e59e5fb0064c97a1c10921ecd549f2d4a58565

 kernel/kernel/locking/spinlock.c
..
..
@@ -22,6 +22,13 @@
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 #include <linux/debug_locks.h>
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 #include <linux/export.h>
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+#ifdef CONFIG_MMIOWB
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+#ifndef arch_mmiowb_state
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+DEFINE_PER_CPU(struct mmiowb_state, __mmiowb_state);
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+EXPORT_PER_CPU_SYMBOL(__mmiowb_state);
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+#endif
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+#endif
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+
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 /*
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  * If lockdep is enabled then we use the non-preemption spin-ops
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  * even on CONFIG_PREEMPT, because lockdep assumes that interrupts are