linux-kernel - Re: crypto API and GFP

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Message-ID: <20200610121106.GA23137@gondor.apana.org.au>
Date:   Wed, 10 Jun 2020 22:11:07 +1000
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Mikulas Patocka <mpatocka@...hat.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        linux-crypto@...r.kernel.org, Mike Snitzer <msnitzer@...hat.com>,
        Milan Broz <mbroz@...hat.com>, dm-devel@...hat.com,
        linux-kernel@...r.kernel.org
Subject: Re: crypto API and GFP_ATOMIC

On Wed, Jun 10, 2020 at 08:02:23AM -0400, Mikulas Patocka wrote:
>
> Yes, fixing the drivers would be the best - but you can hardly find any 
> person who has all the crypto hardware and who is willing to rewrite all 
> the drivers for it.

We don't have to rewrite them straight away.  We could mark the
known broken ones (or the known working ones) and then dm-crypt
can allocate only those using the types/mask to crypto_alloc.

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