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On Tue, Dec 04, 2018 at 08:06:19AM -0800, Christoph Hellwig wrote:
> We already zero the memory after allocating it from the pool that
> this function fills, and having the memset here in this form means
> we can't support CMA highmem allocations.
> 
> Signed-off-by: Christoph Hellwig <[email protected]>
> Reported-by: Russell King - ARM Linux <[email protected]>
> ---
>  kernel/dma/remap.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/kernel/dma/remap.c b/kernel/dma/remap.c
> index 68a64e3ff6a1..6e784824326f 100644
> --- a/kernel/dma/remap.c
> +++ b/kernel/dma/remap.c
> @@ -121,7 +121,6 @@ int __init dma_atomic_pool_init(gfp_t gfp, pgprot_t prot)
>       if (!page)
>               goto out;
>  
> -     memset(page_address(page), 0, atomic_pool_size);
>       arch_dma_prep_coherent(page, atomic_pool_size);
>  
>       atomic_pool = gen_pool_create(PAGE_SHIFT, -1);
> -- 
> 2.19.1
> 
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