tools: Provide a definition of WARN_ON (b246a9d2) · Commits · 戴 / test

The definition of WARN_ON being used by the radix tree test suite was deficient in two ways: it did not provide a return value, and it stopped execution instead of continuing. This version of WARN_ON tells you which file & line the assertion was triggered in. Signed-off-by:

Matthew Wilcox <mawilcox@microsoft.com>

tools/include/asm/bug.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -12,6 +12,14 @@
		unlikely(__ret_warn_on); \
		})

		#define WARN_ON(condition) ({ \
		int __ret_warn_on = !!(condition); \
		if (unlikely(__ret_warn_on)) \
		__WARN_printf("assertion failed at %s:%d\n", \
		__FILE__, __LINE__); \
		unlikely(__ret_warn_on); \
		})

		#define WARN_ON_ONCE(condition) ({ \
		static int __warned; \
		int __ret_warn_once = !!(condition); \

tools/testing/radix-tree/linux/kernel.h

+0 −1

Original line number	Diff line number	Diff line
		@@ -24,7 +24,6 @@
		#endif

		#define BUG_ON(expr) assert(!(expr))
		#define WARN_ON(expr) assert(!(expr))
		#define __init
		#define __must_check
		#define panic(expr)

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