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
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