add led

hc

2024-05-10 10ebd8556b7990499c896a550e3d416b444211e6

 kernel/include/linux/processor.h
..
..
@@ -32,15 +32,6 @@
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 #define spin_cpu_relax() cpu_relax()
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 #endif
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-/*
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- * spin_cpu_yield may be called to yield (undirected) to the hypervisor if
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- * necessary. This should be used if the wait is expected to take longer
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- * than context switch overhead, but we can't sleep or do a directed yield.
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- */
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-#ifndef spin_cpu_yield
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-#define spin_cpu_yield() cpu_relax_yield()
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-#endif
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-
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 #ifndef spin_end
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 #define spin_end()
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 #endif