Symbol: xchg
sys/dev/pci/drm/include/linux/atomic.h
91
#define xchg(v, n) __sync_lock_test_and_set(v, n)
sys/netinet/tcp_subr.c
323
#define xchg(a,b,type) do { type t; t=a; a=b; b=t; } while (0)
sys/netinet/tcp_subr.c
356
#undef xchg