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Subject: Re: [PATCH 4.19 35/47] x86/irq: Seperate unused system vectors from
 spurious entry again
To:     Greg KH <gregkh@linuxfoundation.org>
Cc:     jan.kiszka@siemens.com, jbeulich@suse.com,
        linux-kernel@vger.kernel.org, marc.zyngier@arm.com,
        stable@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
        "Guilherme G. Piccoli" <kernel@gpiccoli.net>,
        pedro.principeza@canonical.com
References: <c2b7a96a-122e-bdec-7368-d54700a55915@canonical.com>
 <20200817162156.GA715236@kroah.com>
From:   "Guilherme G. Piccoli" <gpiccoli@canonical.com>
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Message-ID: <a2788632-5690-932b-90de-14bd9cabedec@canonical.com>
Date:   Mon, 17 Aug 2020 13:43:14 -0300
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On 17/08/2020 13:21, Greg KH wrote:
> On Mon, Aug 17, 2020 at 12:36:25PM -0300, Guilherme G. Piccoli wrote:
>> Hi Greg / Thomas and all involved here. First, apologies for
>> necro-bumping this thread, but I'm working a backport of this patch to
>> kernel 4.15 (Ubuntu) and then I noticed we have it on stable, but only
>> in 4.19+.
>>
>> Since the fixes tag presents an old commit (since ~3.19), I'm curious if
>> we have a special reason to not have it on long-term stables, like 4.9
>> or 4.14. It's a subtle portion of arch code, so I'm afraid I didn't see
>> something that prevents its backport for previous versions.
> 
> What is the git commit id of this patch you are referring to, you didn't
> provide any context here :(
> 
> thanks,
> 
> greg k-h
> 

I'm sorry, I hoped the subject + thread would suffice heh

So, the mainline commit is: f8a8fe61fec8 ("x86/irq: Seperate unused
system vectors from spurious entry again") [0]. The backport to 4.19
stable tree has the following id: fc6975ee932b .

Thanks,


Guilherme


[0] http://git.kernel.org/linus/f8a8fe61fec8