On Mon, 2020-07-27 at 15:51 +0200, Christophe JAILLET wrote:
> Avoid a memset after a call to 'dma_alloc_coherent()'.
> This is useless since
> commit 518a2f1925c3 ("dma-mapping: zero memory returned from dma_alloc_*")
[]
> diff --git a/drivers/media/pci/bt8xx/btcx-risc.c b/drivers/media/pci/bt8xx/btcx-risc.c
[]
> @@ -73,7 +73,6 @@ int btcx_riscmem_alloc(struct pci_dev *pci,
> dprintk("btcx: riscmem alloc [%d] dma=%lx cpu=%p size=%d\n",
> memcnt, (unsigned long)dma, cpu, size);
> }
> - memset(risc->cpu,0,risc->size);
> return 0;
> }
Likely NAK.
This is not useless as risc->cpu may be reused
and the alloc may not have been done.
