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The dma_alloc_coherent() interface automatically zero the memory returned. Thus, we do not need to specify the __GFP_ZERO flag explicitly when we call dma_alloc_coherent(). Reviewed-by: Cheng Xu <chengyou@linux.alibaba.com> Signed-off-by: Boshi Yu <boshiyu@linux.alibaba.com> Link: https://lore.kernel.org/r/20240311113821.22482-4-boshiyu@alibaba-inc.com Signed-off-by: Leon Romanovsky <leon@kernel.org>