From: Ard Biesheuvel <ardb@kernel.org>
To: linux-crypto@vger.kernel.org
Cc: Ard Biesheuvel <ardb@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
Eric Biggers <ebiggers@kernel.org>,
Herbert Xu <herbert@gondor.apana.org.au>
Subject: [PATCH 0/2] crypto/arm64: Reduce stack bloat from scoped ksimd
Date: Wed, 3 Dec 2025 17:38:04 +0100 [thread overview]
Message-ID: <20251203163803.157541-4-ardb@kernel.org> (raw)
Arnd reports that the new scoped ksimd changes result in excessive stack
bloat in the XTS routines in some cases. Fix this for AES-XTS and
SM4-XTS.
Note that the offending patches went in via the libcrypto tree, so these
changes should either go via the same route, or wait for -rc1
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Ard Biesheuvel (2):
crypto/arm64: aes/xts - Using single ksimd scope to reduce stack bloat
crypto/arm64: sm4/xts: Merge ksimd scopes to reduce stack bloat
arch/arm64/crypto/aes-glue.c | 75 ++++++++++----------
arch/arm64/crypto/aes-neonbs-glue.c | 44 ++++++------
arch/arm64/crypto/sm4-ce-glue.c | 42 ++++++-----
3 files changed, 77 insertions(+), 84 deletions(-)
--
2.47.3
next reply other threads:[~2025-12-03 16:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-03 16:38 Ard Biesheuvel [this message]
2025-12-03 16:38 ` [PATCH 1/2] crypto/arm64: aes/xts - Using single ksimd scope to reduce stack bloat Ard Biesheuvel
2025-12-03 16:38 ` [PATCH 2/2] crypto/arm64: sm4/xts: Merge ksimd scopes " Ard Biesheuvel
2025-12-03 18:10 ` [PATCH 0/2] crypto/arm64: Reduce stack bloat from scoped ksimd Eric Biggers
2025-12-03 22:23 ` Arnd Bergmann
2025-12-08 23:10 ` Eric Biggers
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20251203163803.157541-4-ardb@kernel.org \
--to=ardb@kernel.org \
--cc=arnd@arndb.de \
--cc=ebiggers@kernel.org \
--cc=herbert@gondor.apana.org.au \
--cc=linux-crypto@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.