DMA_POOL_FREE - Online Linux Manual PageSection : 9
Updated : June 2018
Source : Kernel Hackers Manual 2​.6​.
Note : Memory Management in Linux

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NAMEdma_pool_free − put block back into dma pool

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SYNOPSISvoid dma_pool_free(struct dma_pool * pool, void * vaddr, dma_addr_t dma);

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ARGUMENTSpool the dma pool holding the block vaddr virtual address of block dma dma address of block

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DESCRIPTIONCaller promises neither device nor driver will again touch this block unless it is first re−allocated​.

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