linux-kernel - Re: Chaining is dead

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Message-ID: <Z-tjluCx71ti6Ngq@gondor.apana.org.au>
Date: Tue, 1 Apr 2025 11:55:02 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: Eric Biggers <ebiggers@...nel.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
	"David S. Miller" <davem@...emloft.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Crypto Mailing List <linux-crypto@...r.kernel.org>
Subject: Re: Chaining is dead

On Mon, Mar 31, 2025 at 08:33:03PM -0700, Eric Biggers wrote:
>
> - It would add the overhead of keyslot management to software crypto

That seems to be a design error in blk_crypto.  Why should we
model the inadequacies of hardware in software?

If we're going through the software crypto path in blk_crypto,
it should be done as a first-clsas citizen, and not as a poor
man's version of hardware crypto.

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