From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B7C1A2FC011; Sun, 15 Feb 2026 20:30:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771187404; cv=none; b=ZGS3Mh6ItOnFHgfXaWWv/LLyOpHQOdw0vXCwd7D1ixiWR0zxAPrriHpA4JeYPgCGeNR/ToBZ8zUgG9k+MNEym01ND6niepHB4wYW4zmJ8ktQ33/IxNFLU0fpAEgi9x4ckqlzXUFuSD6K5LNY2d4OoKv3wHG+ybT0SvewnC38trY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771187404; c=relaxed/simple; bh=OE39GIM3zPgCCJWdldGxuMygx5gfDnhCPNQfoYdRhI4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=HtXmw4yNHyqrkaxpvV6gFDB645MxM065xoSXFL3FqRx+SzhtkEjgdllDvWQNDIpuxM5VsKMqmBkXJ4Qz+N6LXSOB2LKJLhwyLMgSvth9Q42H0M070iaEpVXZHXF1t3fUWbajjIdMQYrKTSIYDNGHdFNLfuqFomeXn7hErW46JOg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YRIy2vqF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="YRIy2vqF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9A416C4CEF7; Sun, 15 Feb 2026 20:30:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771187404; bh=OE39GIM3zPgCCJWdldGxuMygx5gfDnhCPNQfoYdRhI4=; h=From:Date:Subject:To:Cc:From; b=YRIy2vqF/FkR1aCLMuwaNCaCVbbvuVUcKjUUplHlEVdEr2EtS1VuvdCJ6ktyjdCRc YaeEyiKwXfeOoz+umm1vqBOO3StNIm38WBOTjZKkbj+dB8IW/gYa4ETNf7f3xI3nSb rnoqYNrFUeAIWL1aFuPo9aEWIC80J+gXgXZZFieBnt8cBPSMQXIRk3s7d7y/u7TSrO 9EuwtLssGehLS2xEThqjvdq0ByT0m81z0cam/j8N32qV0lK3cCs2XP8Tl2rzGbhDpO baTK2T0HLIG9JgBN4Bm1/NxDJodMP3HQOvkPWy9KNzhwVb0vMT6VDgtjkGKm1KDou4 1/qzx0ItsDWqw== From: Andreas Hindborg Date: Sun, 15 Feb 2026 21:29:53 +0100 Subject: [PATCH] rust: hrtimer: add active() method to query timer state Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260215-hrtimer-active-v1-1-a754d10492c2@kernel.org> X-B4-Tracking: v=1; b=H4sIAMAskmkC/x3MQQqAIBBA0avIrBMcK4muEi3KxpxFFmNEEN09a fkW/z+QSZgy9OoBoYsz76kAKwU+TmklzUsxWGOdsdjqKCdvJHryJ1+kA3Z1gxiodTOU6BAKfP/ DYXzfD7eOeBJgAAAA X-Change-ID: 20260215-hrtimer-active-f183411fe56b To: Boqun Feng , FUJITA Tomonori , Frederic Weisbecker , Lyude Paul , Thomas Gleixner , Anna-Maria Behnsen , John Stultz , Stephen Boyd , Miguel Ojeda , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Alice Ryhl , Trevor Gross , Danilo Krummrich Cc: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, Andreas Hindborg X-Mailer: b4 0.15-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=1544; i=a.hindborg@kernel.org; h=from:subject:message-id; bh=OE39GIM3zPgCCJWdldGxuMygx5gfDnhCPNQfoYdRhI4=; b=owEBbQKS/ZANAwAKAeG4Gj55KGN3AcsmYgBpkizBgcn9Xwx1sQ+Th6YymqbtmbpBQ2osb0qPq drrErCOFoaJAjMEAAEKAB0WIQQSwflHVr98KhXWwBLhuBo+eShjdwUCaZIswQAKCRDhuBo+eShj d68ID/9HoeozpbHMhk4ypAyoDVM9GKjLkro9hTxPmKhB9TCuGZ6hasUbvOVV7xTwQDPRyoSZOZa 4No7YseuttoWhh8jy7GIZ3t/Nx6qMJnLDxBplnn7aJCWJsKpghNgZTTJNGVOVtWWtBxTH5sMquV ixa52K3McENacnpmBSbgQqpQSKAdAAeeLWDbKcFrtNAvJKFnTbV/pDKjFRq4XuQ+FjpRWhki4Z9 2c4CJ/hGyyF7eH8FyU7bomWh1CUUM/tv3b1FsNGp2mAlJQKfeP00d+ID23WNBZPYKLIGtZSUHh+ wDd+7n2q8K02lXjaO4bOv67o9aZUJgaIOoY+qgrN95QZLVWpzwbq1M++1zAbI1q42EfQCm5OGd3 JuNVD5qJHWOAvs6e+FVNYcenfiWcVCvDWTgCFBka7oPac3SQWuUhErh3TLIt+8+PyKMMauS0ZkJ yxa7UTqnFTy/IUsUGZ1++m04UzaOyJoOAHJ+BunNXEy+q+27CNiao1keE8sl+Kyg1B60zZIs6ou dztu+2+0Gk1YpEiFdm0uIS/whxsOH/wVTDzRxN7RnVon9JBt/wfcuqJTy5to6R1VZ8euzD8gWaM lsXhP+1LKOB4GUi6ZLhxTuHMJ4ZocH1yMSZOMbIh1g3feIi5zdBuHe4hHwQkxUQx8eZFkWA12d1 oriLQQCXh5YFMcA== X-Developer-Key: i=a.hindborg@kernel.org; a=openpgp; fpr=3108C10F46872E248D1FB221376EB100563EF7A7 Add an `active()` method to HrTimer that returns true if the timer is in the started or running states. This wraps the kernel's hrtimer_active() function. Also add documentation clarifying the definition of an active timer. Signed-off-by: Andreas Hindborg --- rust/kernel/time/hrtimer.rs | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/rust/kernel/time/hrtimer.rs b/rust/kernel/time/hrtimer.rs index 856d2d929a008..b2272b059e504 100644 --- a/rust/kernel/time/hrtimer.rs +++ b/rust/kernel/time/hrtimer.rs @@ -66,6 +66,8 @@ //! //! A `restart` operation on a timer in the **stopped** state is equivalent to a //! `start` operation. +//! +//! A timer is **active** if it is either in the **started** or **running** states. use super::{ClockSource, Delta, Instant}; use crate::{prelude::*, types::Opaque}; @@ -246,6 +248,14 @@ pub fn expires(&self) -> HrTimerInstant ) } } + + /// Query the state of the timer. + /// + /// Returns `true` if the timer is in the started or running states. + pub fn active(&self) -> bool { + // SAFETY: By type invariant, `self.timer` is valid. + unsafe { bindings::hrtimer_active(self.timer.get()) } + } } /// Implemented by pointer types that point to structs that contain a [`HrTimer`]. --- base-commit: 05f7e89ab9731565d8a62e3b5d1ec206485eeb0b change-id: 20260215-hrtimer-active-f183411fe56b Best regards, -- Andreas Hindborg