disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/include/linux/nospec.h
..
..
@@ -5,10 +5,16 @@
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 #ifndef _LINUX_NOSPEC_H
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 #define _LINUX_NOSPEC_H
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+
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+#include <linux/compiler.h>
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 #include <asm/barrier.h>
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 struct task_struct;
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+#ifndef barrier_nospec
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+# define barrier_nospec() do { } while (0)
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+#endif
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+
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 /**
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  * array_index_mask_nospec() - generate a ~0 mask when index < size, 0 otherwise
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  * @index: array element index