SVGA3dSoTarget
BUILD_BUG_ON(SVGA3D_DX_MAX_SOTARGETS*sizeof(SVGA3dSoTarget) >
SVGA3dSoTarget *so_buffer = (SVGA3dSoTarget *) cbs->bind_cmd_buffer;
so_target_size = cbs->bind_cmd_count*sizeof(SVGA3dSoTarget);
SVGA3dSoTarget targets[];
num = (cmd->header.size - sizeof(cmd->body)) / sizeof(SVGA3dSoTarget);