On Thu, Nov 06, 2014 at 03:26:33PM +0100, Maxime Ripard wrote:
> 
> But you still haven't explain why the driver, while it doesn't handle
> the user space buffer at any time, should be worried that the data the
> framework has given him are actually mapped.

Encryption is used by IPsec and SKBs can be allocated in highmem.
algif also exposes all ciphers to user-space memory which can also
be in highmem.

Cheers,
-- 
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

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