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GET_DMA_BUF(9) Device drivers infrastructure GET_DMA_BUF(9)

NAME

get_dma_buf - convenience wrapper for get_file.

SYNOPSIS

void get_dma_buf(struct dma_buf * dmabuf);

ARGUMENTS

dmabuf
[in] pointer to dma_buf

DESCRIPTION

Increments the reference count on the dma-buf, needed in case of drivers that either need to create additional references to the dmabuf on the kernel side. For example, an exporter that needs to keep a dmabuf ptr so that subsequent exports don't create a new dmabuf.

COPYRIGHT

January 2017 Kernel Hackers Manual 4.8.