DMA_BUF_SYNC_RW
if (arg.flags & ~DMA_BUF_SYNC_RW)
if ((arg.flags & DMA_BUF_SYNC_RW) == 0)
if (arg.flags & ~DMA_BUF_SYNC_RW)
if ((arg.flags & DMA_BUF_SYNC_RW) == 0)
switch (sync.flags & DMA_BUF_SYNC_RW) {
case DMA_BUF_SYNC_RW:
(DMA_BUF_SYNC_RW | DMA_BUF_SYNC_END)
.flags = start_stop | DMA_BUF_SYNC_RW,