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2024-02-19 1c055e55a242a33e574e48be530e06770a210dcd

 kernel/tools/virtio/linux/kernel.h
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@@ -10,7 +10,9 @@
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 #include <stdarg.h>
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 #include <linux/compiler.h>
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+#include <linux/log2.h>
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 #include <linux/types.h>
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+#include <linux/list.h>
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 #include <linux/printk.h>
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 #include <linux/bug.h>
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 #include <errno.h>
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@@ -109,8 +111,6 @@
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 	const typeof( ((type *)0)->member ) *__mptr = (ptr);	\
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 	(type *)( (char *)__mptr - offsetof(type,member) );})
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-#define uninitialized_var(x) x = x
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-
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 # ifndef likely
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 #  define likely(x)	(__builtin_expect(!!(x), 1))
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 # endif
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@@ -127,18 +127,12 @@
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 #define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
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 #define dev_warn(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
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-#define WARN_ON_ONCE(cond) ((cond) ? fprintf (stderr, "WARNING\n") : 0)
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+#define WARN_ON_ONCE(cond) (unlikely(cond) ? fprintf (stderr, "WARNING\n") : 0)
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 #define min(x, y) ({				\
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 	typeof(x) _min1 = (x);			\
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 	typeof(y) _min2 = (y);			\
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 	(void) (&_min1 == &_min2);		\
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 	_min1 < _min2 ? _min1 : _min2; })
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-
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-/* TODO: empty stubs for now. Broken but enough for virtio_ring.c */
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-#define list_add_tail(a, b) do {} while (0)
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-#define list_del(a) do {} while (0)
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-#define list_for_each_entry(a, b, c) while (0)
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-/* end of stubs */
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 #endif /* KERNEL_H */