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[2001:1c00:c0c:fe00:fc7e:fd47:85c1:1ab3]) by smtp.gmail.com with ESMTPSA id w4sm23445550wrl.12.2020.03.12.05.06.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 12 Mar 2020 05:06:03 -0700 (PDT) Subject: Re: [RFC v2] x86: Select HARDIRQS_SW_RESEND on x86 To: Thomas Gleixner , Mika Westerberg , Andy Shevchenko , Linus Walleij , Ingo Molnar , Borislav Petkov , "H . Peter Anvin" Cc: linux-gpio@vger.kernel.org, linux-acpi@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org References: <87sgk4naqh.fsf@nanos.tec.linutronix.de> <0e5b484d-89f5-c018-328a-fb4a04c6cd91@redhat.com> <87fteek27x.fsf@nanos.tec.linutronix.de> <218eb262-011f-0739-8e74-9ca3ef793bb8@redhat.com> <87a74mk0gm.fsf@nanos.tec.linutronix.de> From: Hans de Goede Message-ID: <9a7ebae2-fa65-4a85-5951-120f3543e5fb@redhat.com> Date: Thu, 12 Mar 2020 13:06:03 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <87a74mk0gm.fsf@nanos.tec.linutronix.de> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On 3/11/20 11:09 PM, Thomas Gleixner wrote: > Hans de Goede writes: >> On 3/11/20 10:31 PM, Thomas Gleixner wrote: >>> Hans de Goede writes: >>>>> I just need to stare at the legacy PIC and the virt stuff. >>>>> >>>>>> Also maybe we should add a Cc: stable@vger.kernel.org ??? This seems like >>>>>> somewhat a big change for that but it does solve some real issues... >>>>> >>>>> Yes. Let me stare at the couple of weird irqchips which might get >>>>> surprised. I'll teach them not to do that :) >>>> >>>> I know that you are very busy, still I'm wondering is there any progress >>>> on this ? >>> >>> Bah. That fell through the cracks, but actually I looked at this due to >>> the PCI-E AER wreckage. So yes, this is fine, but we want: >>> >>> https://lkml.kernel.org/r/20200306130623.590923677@linutronix.de >>> https://lkml.kernel.org/r/20200306130623.684591280@linutronix.de >>> >>> if we want to backport this to stable. >> >> So far I have seen a few, but not a lot of devices which need this, so >> I'm not 100% sure what to do here. >> >> Do you consider this change safe / suitable for stable if those 2 patches >> are backported and applied first? > > I think so. The two patches are on my list for backports anyway, but I > wanted to give them some time to simmer. OK, I'll submit this patch for stable then once your backports have landed. Regards, Hans