Symbol: eMrwlock_downgrade
usr/src/uts/common/inet/ipf/netinet/ip_compat.h
1510
# define MUTEX_DOWNGRADE(x) eMrwlock_downgrade(&(x)->ipf_emu, \
usr/src/uts/common/inet/ipf/netinet/ip_compat.h
1532
extern void eMrwlock_downgrade __P((eMrwlock_t *, char *, int));