return offsetof(struct ib_rmpp_mad, data); 
return IB_MGMT_RMPP_HDR; 
static int data_offset(u8 mgmt_class){	if (mgmt_class == IB_MGMT_CLASS_SUBN_ADM)		return offsetof(struct ib_sa_mad, data);	else if ((mgmt_class >= IB_MGMT_CLASS_VENDOR_RANGE2_START) &&		 (mgmt_class <= IB_MGMT_CLASS_VENDOR_RANGE2_END))		return offsetof(struct ib_vendor_mad, data);	else		return offsetof(struct ib_rmpp_mad, data);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/34816ad98efe4d47ffd858a0345321f9d85d9420/mad_rmpp.c/clean/drivers/infiniband/core/mad_rmpp.c