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Date: Sun, 29 May 2022 13:24:29 +0200
From: Arnd Bergmann <arnd@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-arch <linux-arch@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Yoshinori Sato <ysato@...rs.sourceforge.jp>,
Palmer Dabbelt <palmer@...belt.com>, Masahiro Yamada <masahiroy@...nel.org>,
Peter Zijlstra <peterz@...radead.org>, Huacai Chen <chenhuacai@...ngson.cn>,
WANG Xuerui <kernel@...0n.name>, Marc Zyngier <maz@...nel.org>, libc-alpha@...rceware.org,
musl@...ts.openwall.com, ardb@...nel.org, linux-acpi@...r.kernel.org,
linux-pci@...r.kernel.org
Subject: Re: [GIT PULL] asm-generic changes for 5.19
On Thu, May 26, 2022 at 5:00 PM Arnd Bergmann <arnd@...nel.org> wrote:
> - A series to add a generic ticket spinlock that can be shared by most
> architectures with a working cmpxchg or ll/sc type atomic, including
> the conversion of riscv, csky and openrisc. This series is also a
> prerequisite for the loongarch64 architecture port that will come as
> a separate pull request.
An update on Loongarch: I was originally planning to send Linus a
pull request with
the branch with the contents from
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git/log/?h=loongarch-next
but I saw that this includes both the architecture code and some
device drivers (irqchip,
pci, acpi) that are essential for the kernel to actually boot. At
least the irqchip driver
has not passed review because it uses a nonstandard way to integrate into ACPI,
and the PCI stuff may or may not be ready but has no Reviewed-by or
Acked-by tags
from the maintainers. I clearly don't want to bypass the subsystem
maintainers on
those drivers by sending a pull request for the current branch.
My feeling is that there is also no point in merging a port without
the drivers as it cannot
work on any hardware. On the other hand, the libc submissions (glibc
and musl) are
currently blocked while they are waiting for the kernel port to get merged.
Arnd
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