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[34.82.88.80]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7a274a9e8fasm6403828b3a.29.2025.10.24.08.54.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Oct 2025 08:54:39 -0700 (PDT) Date: Fri, 24 Oct 2025 15:54:35 +0000 From: William McVicker To: Marek Szyprowski Cc: Russell King , Catalin Marinas , Will Deacon , Daniel Lezcano , Thomas Gleixner , Krzysztof Kozlowski , Alim Akhtar , Ingo Molnar , Peter Griffin , Youngmin Nam , Donghoon Yu , Rob Herring , Saravana Kannan , John Stultz , Tudor Ambarus , =?iso-8859-1?Q?Andr=E9?= Draszik , Conor Dooley , linux-samsung-soc@vger.kernel.org, kernel-team@android.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski Subject: Re: [PATCH v5 4/7] clocksource/drivers/exynos_mct: Use percpu interrupts only on ARM64 Message-ID: References: <20251023205257.2029526-1-willmcvicker@google.com> <20251023205257.2029526-5-willmcvicker@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251024_085440_742499_9D09BE39 X-CRM114-Status: GOOD ( 12.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 10/24/2025, Marek Szyprowski wrote: > On 23.10.2025 22:52, Will McVicker wrote: > > From: Marek Szyprowski > > > > For some unknown reasons forcing percpu interrupts for local timers > > breaks CPU hotplug for 'little' cores on legacy ARM 32bit Exynos based > > machines (for example Exynos5422-based Odroid-XU3/XU4 boards). Use percpu > > flag only when driver is compiled for newer ARM64 architecture. > > > > Fixes: f3cec54ee3bf ("clocksource/drivers/exynos_mct: Set local timer interrupts as percpu") > > This tag doesn't make sense in this patchset. Simply squash this change > with the previous one, adding the following tags: > > Suggested-by: Marek Szyprowski > Link: > https://lore.kernel.org/all/20250827102645.1964659-1-m.szyprowski@samsung.com/ Okay, no problem! --Will