Re: VERIFY_READ/WRITE in uaccess.h?

From: H. Peter Anvin
Date: Mon May 11 2015 - 17:05:32 EST

On 05/10/2015 02:44 AM, Richard Weinberger wrote:
> Hi!
> While cleaning up UML's uaccess code I've noticed that not a single architecture
> is using VERIFY_READ/WRITE in access_ok().
> One exception is UML, it uses the access type in one check which is in vain anyways.
> Also asm-generic/uaccess.h drops the type parameter silently.
> Why do we still carry it around?
> Is it because we want it for some future architecture which can benefit
> from it or just because nobody cared enough to do a tree-wide cleanup?
> I fear it is the latter... ;)

Or, perhaps, nobody noticed?


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