#define NFSCTL_VERUNSET(_cltbits, _v) ((_cltbits) &= ~(1 << ((_v) - 1)))
#define NFSCTL_UDPUNSET(_cltbits) ((_cltbits) &= ~(1 << (17 - 1)))
#define NFSCTL_TCPUNSET(_cltbits) ((_cltbits) &= ~(1 << (18 - 1)))
#define NFSCTL_VERUNSET(_cltbits, _v) ((_cltbits) &= ~(1 << ((_v) - 1)))
#define NFSCTL_UDPUNSET(_cltbits) ((_cltbits) &= ~(1 << (17 - 1)))
#define NFSCTL_TCPUNSET(_cltbits) ((_cltbits) &= ~(1 << (18 - 1)))