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Date:   Fri, 15 Oct 2021 16:53:52 +0800
From:   Hanjun Guo <guohanjun@...wei.com>
To:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>
CC:     Arnd Bergmann <arnd@...nel.org>,
        Sudeep Holla <sudeep.holla@....com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>, "Arnd Bergmann" <arnd@...db.de>,
        Catalin Marinas <catalin.marinas@....com>,
        "Marc Zyngier" <maz@...nel.org>, <linux-acpi@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] acpi: arm64: fix section mismatch warning

On 2021/10/13 17:02, Lorenzo Pieralisi wrote:
> On Tue, Oct 12, 2021 at 03:03:29PM +0800, Hanjun Guo wrote:
>> Hi Arnd,
>>
>> On 2021/9/27 22:19, Arnd Bergmann wrote:
>>> From: Arnd Bergmann <arnd@...db.de>
>>>
>>> In a gcc-11 randconfig build I came across this warning:
>>>
>>> WARNING: modpost: vmlinux.o(.text.unlikely+0x2c084): Section mismatch in reference from the function next_platform_timer() to the variable .init.data:acpi_gtdt_desc
>>> The function next_platform_timer() references
>>> the variable __initdata acpi_gtdt_desc.
>>> This is often because next_platform_timer lacks a __initdata
>>> annotation or the annotation of acpi_gtdt_desc is wrong.
>>>
>>> This happens when next_platform_timer() fails to get inlined
>>> despite the inline annotation. Adding '__init' solves the issue,
>>> and it seems best to remove the 'inline' in the process seems
>>> better anyway.
>>
>> There was a patch to fix this issue as well [1],
>> but not merged yet.
>>
>> [1]: https://lore.kernel.org/linux-acpi/7f29a149-e005-f13f-2cc4-a9eb737107e1@huawei.com/T/
> 
> My bad, we did not coordinate well - I noticed your Acked-by but as a
> rule we should also CC LAKML and Catalin/Will (if they aren't CCed) on
> the reply to make sure they can actually see it.

It's my bad. I will make sure LAKML and Catalin/Will are CCed next time
when I reply the email.

Thanks
Hanjun

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