Re: [PATCH 20/32] Blackfin arch: dma_memcpy borken for > 64K

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On 5/21/07, Pekka Enberg <[email protected]> wrote:
On 5/21/07, Bryan Wu <[email protected]> wrote:
> -void *dma_memcpy(void *dest, const void *src, size_t size)
> +void *_dma_memcpy(void *dest, const void *src, size_t size)

Minor nitpick: the established naming convention is two underscores, not one.

that should be marked as static now actually since the function isnt
for use outside of this file

> +void *dma_memcpy(void *dest, const void *src, size_t size)
> +{
> +       size_t bulk;
> +       size_t rest;
> +       void * addr;
> +
> +       bulk = (size >> 16) << 16;

I assume this is significantly faster on your architecture than:

   bulk = size & ~0xFFFFUL;

which is more readable?

actually they should get optimized to the same thing
-mike
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