Re: [RFC][PATCH] introduce ptr_diff()

[Andi Kleen]

> If so, the warning seems valid as sizeof(struct page) is probably not
> (always) a power of 2. On a native build on x86_64 it is 56 bytes
> hereover.
> Hmm ....


gcc just generats a mull with inverted value. mull is cheap on any
reasonable CPU.  Please fix sparse.

-andi
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