net: ena: Use dev_alloc() in RX buffer allocation
Use dev_alloc() when allocating RX buffers instead of specifying the allocation flags explicitly. This result in same behaviour with less code. Also move the page allocation and its DMA mapping into a function. This creates a logical block, which may help understanding the code. Signed-off-by: Shay Agroskin <shayagr@amazon.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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