From: Catalin Marinas <catalin.marinas@arm.com>
To: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
Ard Biesheuvel <ardb@kernel.org>,
Eric Biggers <ebiggers@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Alexei Starovoitov <ast@kernel.org>,
Oliver Upton <oupton@kernel.org>,
Herbert Xu <herbert@gondor.apana.org.au>,
Marc Zyngier <maz@kernel.org>
Subject: Re: [PATCH v3 12/13] arm64: Kbuild: Remove vestigial big-endian support
Date: Mon, 21 Sep 2026 11:24:36 +0100 [thread overview]
Message-ID: <arEF5IOJSlQyYwX5@arm.com> (raw)
In-Reply-To: <20260918145217.1669-13-will@kernel.org>
On Fri, Sep 18, 2026 at 03:52:14PM +0100, Will Deacon wrote:
> -choice
> - prompt "Endianness"
> - default CPU_LITTLE_ENDIAN
> - help
> - Select the endianness of data accesses performed by the CPU. Userspace
> - applications will need to be compiled and linked for the endianness
> - that is selected here.
> -
> -config CPU_BIG_ENDIAN
> - bool "Build big-endian kernel"
> - depends on BROKEN
> - help
> - Say Y if you plan on running a kernel with a big-endian userspace.
> -
> -config CPU_LITTLE_ENDIAN
> - bool "Build little-endian kernel"
> - help
> - Say Y if you plan on running a kernel with a little-endian userspace.
> - This is usually the case for distributions targeting arm64.
Running the checks through an LLM found that CONFIG_GVE depends on
X86 || CPU_LITTLE_ENDIAN, so it won't be enabled anymore.
I think that's the only positive test of CPU_LITTLE_ENDIAN.
--
Catalin
next prev parent reply other threads:[~2026-09-21 10:24 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-18 14:52 [PATCH v3 00/14] arm64: Remove unused " Will Deacon
2026-09-18 14:52 ` [PATCH v3 01/13] selftests/arm64: Remove " Will Deacon
2026-09-20 19:56 ` Thomas Gleixner
2026-09-18 14:52 ` [PATCH v3 02/13] arm64: bpf: Remove big-endian support from the JIT compiler Will Deacon
2026-09-18 14:52 ` [PATCH v3 03/13] arm64: crypto: Assume a little-endian kernel Will Deacon
2026-09-18 14:52 ` [PATCH v3 04/13] arm64: lib: Assume a little-endian kernel in custom library routines Will Deacon
2026-09-18 14:52 ` [PATCH v3 05/13] arm64: lib: Assume a little-endian kernel in optimised string routines Will Deacon
2026-09-18 14:52 ` [PATCH v3 06/13] arm64: assembler: Remove endianness helper macros Will Deacon
2026-09-18 14:52 ` [PATCH v3 07/13] arm64: vdso32: Always build compat vDSO object as little-endian Will Deacon
2026-09-18 14:52 ` [PATCH v3 08/13] KVM: arm64: Remove support for a big-endian hypervisor object Will Deacon
2026-09-18 14:52 ` [PATCH v3 09/13] arm64: Remove all usage of CONFIG_CPU_BIG_ENDIAN Will Deacon
2026-09-18 14:52 ` [PATCH v3 10/13] arm64: Remove all usage of __AARCH64EB__ Will Deacon
2026-09-18 14:52 ` [PATCH v3 11/13] crypto: hisilicon/sec2: Remove check of CONFIG_CPU_LITTLE_ENDIAN Will Deacon
2026-09-23 7:04 ` liulongfang
2026-09-18 14:52 ` [PATCH v3 12/13] arm64: Kbuild: Remove vestigial big-endian support Will Deacon
2026-09-21 10:24 ` Catalin Marinas [this message]
2026-09-22 15:10 ` Will Deacon
2026-09-22 15:17 ` Catalin Marinas
2026-09-22 15:32 ` Will Deacon
2026-09-18 14:52 ` [PATCH v3 13/13] drivers: Kconfig: Simplify dependencies on ARM64 && !CPU_BIG_ENDIAN Will Deacon
2026-09-18 16:22 ` [PATCH v3 00/14] arm64: Remove unused big-endian support Mark Rutland
2026-09-23 18:18 ` Catalin Marinas
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