From: Eric Biggers <ebiggers@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: linux-crypto@vger.kernel.org, Ard Biesheuvel <ardb@kernel.org>,
linux-arm-kernel@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Eric Biggers <ebiggers@kernel.org>
Subject: [PATCH] lib/crc: arm64: Drop check for CONFIG_KERNEL_MODE_NEON
Date: Sat, 14 Mar 2026 10:57:44 -0700 [thread overview]
Message-ID: <20260314175744.30620-1-ebiggers@kernel.org> (raw)
CONFIG_KERNEL_MODE_NEON is always enabled on arm64, and it always has
been since its introduction in 2013. Given that and the fact that the
usefulness of kernel-mode NEON has only been increasing over time,
checking for this option in arm64-specific code is unnecessary. Remove
this check from lib/crc/ to simplify the code and prevent any future
bugs where e.g. code gets disabled due to a typo in this logic.
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
---
This patch is targeting crc-next
(https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git/log/?h=crc-next)
lib/crc/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/crc/Kconfig b/lib/crc/Kconfig
index cca228879bb5a..52e216f397468 100644
--- a/lib/crc/Kconfig
+++ b/lib/crc/Kconfig
@@ -46,11 +46,11 @@ config CRC_T10DIF
config CRC_T10DIF_ARCH
bool
depends on CRC_T10DIF && CRC_OPTIMIZATIONS
default y if ARM && KERNEL_MODE_NEON
- default y if ARM64 && KERNEL_MODE_NEON
+ default y if ARM64
default y if PPC64 && ALTIVEC
default y if RISCV && RISCV_ISA_ZBC
default y if X86
config CRC32
base-commit: c13cee2fc7f137dd25ed50c63eddcc578624f204
--
2.53.0
next reply other threads:[~2026-03-14 17:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-14 17:57 Eric Biggers [this message]
2026-03-17 11:09 ` [PATCH] lib/crc: arm64: Drop check for CONFIG_KERNEL_MODE_NEON Ard Biesheuvel
2026-03-17 16:31 ` 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=20260314175744.30620-1-ebiggers@kernel.org \
--to=ebiggers@kernel.org \
--cc=ardb@kernel.org \
--cc=catalin.marinas@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=will@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox