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From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Linux PM <linux-pm@vger.kernel.org>
Cc: Christian Loehle <christian.loehle@arm.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH v1 1/2] cpuidle: governors: teo: Fix tick_intercepts handling in teo_update()
Date: Sun, 16 Nov 2025 13:34:29 +0100	[thread overview]
Message-ID: <5085160.31r3eYUQgx@rafael.j.wysocki> (raw)
In-Reply-To: <12810244.O9o76ZdvQC@rafael.j.wysocki>

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

The condition deciding whether or not to increase cpu_data->tick_intercepts
in teo_update() is reverse, so fix it.

Fixes: d619b5cc6780 ("cpuidle: teo: Simplify counting events used for tick management")
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

I'm planning to apply this for 6.19 on top of

https://lore.kernel.org/linux-pm/6228387.lOV4Wx5bFT@rafael.j.wysocki/

because that patch (indirectly) depends on commit d619b5cc6780.

---
 drivers/cpuidle/governors/teo.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/cpuidle/governors/teo.c
+++ b/drivers/cpuidle/governors/teo.c
@@ -251,7 +251,7 @@ static void teo_update(struct cpuidle_dr
 		cpu_data->state_bins[idx_timer].hits += PULSE;
 	} else {
 		cpu_data->state_bins[idx_duration].intercepts += PULSE;
-		if (TICK_NSEC <= measured_ns)
+		if (measured_ns <= TICK_NSEC)
 			cpu_data->tick_intercepts += PULSE;
 	}
 }




  reply	other threads:[~2025-11-16 12:35 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-16 12:31 [PATCH v1 0/2] cpuidle: governors: teo: Fix and simplification Rafael J. Wysocki
2025-11-16 12:34 ` Rafael J. Wysocki [this message]
2025-11-17  9:06   ` [PATCH v1 1/2] cpuidle: governors: teo: Fix tick_intercepts handling in teo_update() Christian Loehle
2025-11-17 16:15     ` Rafael J. Wysocki
2025-11-16 12:35 ` [PATCH v1 2/2] cpuidle: governors: teo: Simplify intercepts-based state lookup Rafael J. Wysocki
2025-11-19 21:13   ` Rafael J. Wysocki
2025-11-20  8:45   ` Christian Loehle
2025-11-20 11:07     ` Rafael J. Wysocki
2025-11-28 23:45 ` [PATCH v1 0/2] cpuidle: governors: teo: Fix and simplification Christian Loehle
2025-12-02 17:54   ` Doug Smythies

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