linux-kernel - Re: [PATCH] crypto: testmgr - test in-place en/decryption with two sglists

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Message-ID: <Yk/y8i26b+b8h8mw@gondor.apana.org.au>
Date:   Fri, 8 Apr 2022 16:31:46 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Eric Biggers <ebiggers@...nel.org>
Cc:     linux-crypto@...r.kernel.org, gilad@...yossef.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] crypto: testmgr - test in-place en/decryption with two
 sglists

Eric Biggers <ebiggers@...nel.org> wrote:
> From: Eric Biggers <ebiggers@...gle.com>
> 
> As was established in the thread
> https://lore.kernel.org/linux-crypto/20220223080400.139367-1-gilad@benyossef.com/T/#u,
> many crypto API users doing in-place en/decryption don't use the same
> scatterlist pointers for the source and destination, but rather use
> separate scatterlists that point to the same memory.  This case isn't
> tested by the self-tests, resulting in bugs.
> 
> This is the natural usage of the crypto API in some cases, so requiring
> API users to avoid this usage is not reasonable.
> 
> Therefore, update the self-tests to start testing this case.
> 
> Signed-off-by: Eric Biggers <ebiggers@...gle.com>
> ---
> crypto/testmgr.c | 75 ++++++++++++++++++++++++++++++++++++++++--------
> 1 file changed, 63 insertions(+), 12 deletions(-)

Patch applied.  Thanks.
-- 
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