[FreeBSD] Do a bit of optimization on drm_order()
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81952c7dd1
commit
4c92abfa8d
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@ -1099,11 +1099,12 @@ int drm_mapbufs(struct drm_device *dev, void *data, struct drm_file *file_priv)
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int drm_order(unsigned long size)
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{
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int order;
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unsigned long tmp;
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for (order = 0, tmp = size; tmp >>= 1; ++order);
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if (size == 0)
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return 0;
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if (size & ~(1 << order))
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order = ffsl(size) - 1;
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if (size & ~(1ul << order))
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++order;
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return order;
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