SMB_RW_MAGIC
param->rw_magic = SMB_RW_MAGIC;
param->rw_magic = SMB_RW_MAGIC;
param->rw_magic = SMB_RW_MAGIC;
param->rw_magic = SMB_RW_MAGIC;
ASSERT(param->rw_magic == SMB_RW_MAGIC);
param->rw_magic = SMB_RW_MAGIC;