Re: [PATCH][RFC] crypto: skcipher: Remove VLA usage

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On Mon, Sep 17, 2018 at 10:30:36PM -0700, Kees Cook wrote:
> On Thu, Sep 13, 2018 at 11:23 AM, Kees Cook <keescook@xxxxxxxxxxxx> wrote:
> > RFC follow-up to https://lkml.kernel.org/r/CAGXu5j+bpLK=EQ9LHkO8V=sdaQwt==6fbGhgn2Vi1E9_WxSGRQ@xxxxxxxxxxxxxx
> >
> > The core API changes:
> >
> >         struct crypto_sync_skcipher
> >         crypto_alloc_sync_skcipher()
> >         crypto_free_sync_skcipher()
> >         crypto_sync_skcipher_setkey()
> >         skcipher_request_set_sync_tfm()
> >         SKCIPHER_REQUEST_ON_STACK type check
> >
> > and a single user's refactoring as an example:
> >
> >         drivers/crypto/ccp/ccp-crypto.h
> >         drivers/crypto/ccp/ccp-crypto-aes-xts.c
> >
> > Does this look correct? If so, I can continue and do the other 60
> > instances of SKCIPHER_REQUEST_ON_STACK().
> 
> Herbert, how does this look? Should I do the other 60 instances? I'd
> really like to get this finished up. :)

Hi Kees:

Yes I like this.  This looks a lot simpler than I thought it would
be.

Thanks!
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt



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