On 10/8/21 7:47 PM, guangming@mediatek.com wrote:
From: Guangming Cao
If dma-buf don't want userspace users to touch the dmabuf buffer,
it seems we should add this restriction into dma_buf_ops.mmap,
not in this IOCTL:DMA_BUF_SET_NAME.
With this restriction, we can only know the kernel user
From: Guangming Cao
If dma-buf don't want userspace users to touch the dmabuf buffer,
it seems we should add this restriction into dma_buf_ops.mmap,
not in this IOCTL:DMA_BUF_SET_NAME.
With this restriction, we can only know the kernel users of the dmabuf
by attachments.
However, for many usersp
