linux-kernel - Re: [PATCH v12 00/13] arm64: entry: Convert to Generic Entry

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <704d4e92-b1b7-5506-568a-92605086f376@huawei.com>
Date: Thu, 5 Feb 2026 09:20:15 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: Will Deacon <will@...nel.org>, Thomas Gleixner <tglx@...nel.org>
CC: <catalin.marinas@....com>, <oleg@...hat.com>, <shuah@...nel.org>,
	<kees@...nel.org>, <luto@...capital.net>, <wad@...omium.org>,
	<kevin.brodsky@....com>, <akpm@...ux-foundation.org>, <charlie@...osinc.com>,
	<ldv@...ace.io>, <anshuman.khandual@....com>, <mark.rutland@....com>,
	<ryan.roberts@....com>, <thuth@...hat.com>, <song@...nel.org>,
	<ada.coupriediaz@....com>, <broonie@...nel.org>, <pengcan@...inos.cn>,
	<liqiang01@...inos.cn>, <kmal@...k.li>, <dvyukov@...gle.com>,
	<reddybalavignesh9979@...il.com>, <richard.weiyang@...il.com>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
	<linux-kselftest@...r.kernel.org>
Subject: Re: [PATCH v12 00/13] arm64: entry: Convert to Generic Entry



On 2026/2/4 20:07, Will Deacon wrote:
> On Wed, Feb 04, 2026 at 11:39:34AM +0100, Thomas Gleixner wrote:
>> On Wed, Feb 04 2026 at 09:28, Jinjie Ruan wrote:
>>> On 2026/2/3 22:16, Thomas Gleixner wrote:
>>>> On Tue, Feb 03 2026 at 21:37, Jinjie Ruan wrote:
>>>>> Currently, x86, Riscv, Loongarch use the Generic Entry which makes
>>>>> maintainers' work easier and codes more elegant. arm64 has already
>>>>> successfully switched to the Generic IRQ Entry in commit
>>>>> b3cf07851b6c ("arm64: entry: Switch to generic IRQ entry"), it is
>>>>> time to completely convert arm64 to Generic Entry.
>>>>>
>>>>> The goal is to bring arm64 in line with other architectures that already
>>>>> use the generic entry infrastructure, reducing duplicated code and
>>>>> making it easier to share future changes in entry/exit paths, such as
>>>>> "Syscall User Dispatch".
>>>>>
>>>>> This patch set is rebased on "sched/core". And the performance
>>>>
>>>> Why are you using sched/core, which contains a lot of unrelated
>>>> changes. core/entry is the one which has the prerequisites and nothing
>>>> else....
>>>
>>> By the way，it looks like core/entry and arm64 for-next/entry have
>>> diverged: the first three patches of this series are already in arm64
>>> for-next/entry but missing from core/entry.
>>> Perhaps the two branches should be reconciled so that both contain the
>>> same baseline.
>>
>> The first three patches of this series are ARM specific and have nothing
>> to do with the queued core/entry changes in tip. They are independent of
>> each other and these three ARM64 changes have no business in my tree.
>>
>> If the ARM64 folks want to apply the rest of your series then they have
>> to pull the core/entry branch into their for-next/core branch first so
>> the whole thing builds.
>>
>> But given that the merge window opens on sunday, this is probably moot
>> anyway and the rest of this series can go on top of rc1 in the ARM64
>> tree w/o any further complications.
> 
> Yup, the rest of the series (beyond what we've both queued) also needs
> some more review so this is all post -rc1 material.

Sounds good; I’m looking forward to more expert eyes on the remaining
patches once -rc1 is out.

> 
> In the meantime, thanks for picking up the generic bits.
> 
> Cheers,
> 
> Will
>