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Date: Wed, 1 Jun 2022 13:52:57 +0800
From: WANG Xuerui <>
To: Huacai Chen <>, Arnd Bergmann <>
Cc:, WANG Xuerui <>,
 Linus Torvalds <>,
 linux-arch <>,
 GNU C Library <>,
 Yoshinori Sato <>,
 Peter Zijlstra <>, Marc Zyngier <>,
 Masahiro Yamada <>,
 Linux Kernel Mailing List <>,
 Jiaxun Yang <>,
 ACPI Devel Maling List <>,
 Jianmin Lv <>, linux-pci <>,
 Ard Biesheuvel <>, Huacai Chen <>
Subject: Re: Re: [GIT PULL] asm-generic changes for 5.19

On 6/1/22 00:01, Huacai Chen wrote:
> has been updated. Now this branch droped irqchip drivers and pci
> drivers. But the existing irqchip drivers need some small adjustment
> to avoid build errors [1], and I hope Marc can give an Acked-by.
> Thanks.
> This branch can be built with defconfig and allmodconfig (except
> drivers/platform/surface/aggregator/controller.c, because it requires
> 8bit/16bit cmpxchg, which I was told to remove their support).
> [1]

I see the loongarch-next HEAD has been updated and it's now purely arch 
changes aside from the two trivial irqchip cleanups. Some other changes 
to the v11 patchset [1] are included, but arguably minor enough to not 
invalidate previous Reviewed-by tags.

After some small tweaks:

- adding "#include <asm/irqflags.h>" to arch/loongarch/include/asm/ptrace.h,
- adding an arch/loongarch/include/uapi/asm/bpf_perf_event.h with the 
same content as arch/arm64's, and
- adding "depends on ARM64 || X86" to 

the current loongarch-next HEAD (commit 
36552a24f70d21b7d63d9ef490561dbdc13798d7) now passes allmodconfig build 
(with CONFIG_WERROR disabled; my Gentoo-flavored gcc-12 seems to emit 
warnings on a few drivers).

The majority of userspace ABI has been stable for a few months already, 
after the addition of orig_a0 and removal of newfstatat; the necessary 
changes to switch to statx are already reviewed [2] / merged [3], and 
have been integrated into the LoongArch port of Gentoo for a while. Eric 
looked at the v11 and gave comments, and changes were made according to 
the suggestions, but it'd probably better to get a proper Reviewed-by.

Among the rest of patches, I think maybe the EFI/boot protocol part 
still need approval/ack from the EFI maintainer. However because the 
current port isn't going to be able to run on any real hardware, maybe 
that part could be done later; I'm not sure if the unacknowledged EFI 
bits should be removed as well.

Arnd, what do you think about the current branch's status? Do Huacai 
need to send a quick final v12 to gather tags?


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