Messages in this thread | | | Date | Thu, 6 Nov 2014 22:32:18 +0800 | From | Herbert Xu <> | Subject | Re: [PATCH v5 4/4] crypto: Add Allwinner Security System crypto accelerator |
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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 <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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