static inline int arch_atomic_fetch_add_unless()

in include/asm/atomic.h [107:125]

• 17 lines of code
• 1 McCabe index (conditional complexity)

static inline int arch_atomic_fetch_add_unless(atomic_t *v, int a, int u)
{
	int old, tmp;

	__asm__ __volatile__(
		"1:	l.lwa %0, 0(%2)		\n"
		"	l.sfeq %0, %4		\n"
		"	l.bf 2f			\n"
		"	 l.add %1, %0, %3	\n"
		"	l.swa 0(%2), %1		\n"
		"	l.bnf 1b		\n"
		"	 l.nop			\n"
		"2:				\n"
		: "=&r"(old), "=&r" (tmp)
		: "r"(&v->counter), "r"(a), "r"(u)
		: "cc", "memory");

	return old;
}