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046a6e2a9a
Collect runtime BUG/WARN into a self-contained header <linux/bug.h> to make these macros easier to use. Change-Id: If924684bdab99d2c8fe0b4b3755d0ee5291d11be Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Kever Yang <kever.yang@rock-chips.com> (cherry picked from commit 0a70fb4c1c180d6ad6cd4c1dcd3fae8c5d4dd62e)
35 lines
869 B
C
35 lines
869 B
C
#ifndef _LINUX_BUG_H
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#define _LINUX_BUG_H
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#include <vsprintf.h> /* for panic() */
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#include <linux/build_bug.h>
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#include <linux/compiler.h>
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#include <linux/printk.h>
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#define BUG() do { \
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printk("BUG at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
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panic("BUG!"); \
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} while (0)
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#define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
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#define WARN_ON(condition) ({ \
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int __ret_warn_on = !!(condition); \
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if (unlikely(__ret_warn_on)) \
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printk("WARNING at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
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unlikely(__ret_warn_on); \
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})
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#define WARN_ON_ONCE(condition) ({ \
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static bool __warned; \
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int __ret_warn_once = !!(condition); \
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\
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if (unlikely(__ret_warn_once && !__warned)) { \
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__warned = true; \
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WARN_ON(1); \
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} \
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unlikely(__ret_warn_once); \
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})
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#endif /* _LINUX_BUG_H */
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