From nobody Thu Dec 18 07:50:51 2025 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 B04951F756A; Tue, 17 Dec 2024 15:19:49 +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=1734448789; cv=none; b=EuddusZaHdl58mGuBThJXXAjoRV/KL8Y3elQ9goK7De9FFPqcfFvINFEKXiYvjRGxpfK/6q9CESHS2lRuf+16x4404+w0bBjqJ/SEfDBp9b932VZb/yCWjulGuJoVw2/5XqirHE9ER1ge86l902k68Bw9bQ40uXY3ykb/Rd0M78= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734448789; c=relaxed/simple; bh=tQDyXQBkG1q5qjeehMfyrhkTdqTA2BWMVmg+Cs7DewM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=DiVB460ern+XS1JbzDCBCXRIyHeo1eqCGNWEErdPURaHSVyJuR+IikfgAf6QXGEycu4E3bPO85ZNFOcfs2q0G8fh03CfE5irWYzXekQ18z3XoLU2uqXXR6dBX1LBaPxh3EcnYOeYauyrpTToE4qS/r7R2HbbIlMf8vuUrZklfhA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=g73mysGz; 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="g73mysGz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 58E98C4CED3; Tue, 17 Dec 2024 15:19:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734448789; bh=tQDyXQBkG1q5qjeehMfyrhkTdqTA2BWMVmg+Cs7DewM=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=g73mysGzY4FlzIF/yXDocP6p6QPDOIltz9Z63FUBi2YT7QjK5dZus0UFra4KHbtcM h3LLo3OGh7VwAI+dIlVabRGl3x0X9RgBRSQ2hh26IjeJ4CLbzflqqdS1HNEOdR0dgo 4icpWoga0DKPJTDH4L2DVXs0oABe+wcw9V/TqZ441uRGWhdgjQ+u/EZo35Rt7YDN3+ UtKbQPAbR3gG//MUXmbtpJrW4UBIRR7VeCm9a4QiFIL7jyiJddT9qETgPQibICg0DI LpSQLZ5bBHfTkz7YzeJFl6df1dgOnZVnF7FFGDrIcO3zMqE636PhxkOpBe2FmYdWnO bf3jhi2oyOwzA== From: Andreas Hindborg Date: Tue, 17 Dec 2024 16:17:41 +0100 Subject: [PATCH v5 10/14] rust: alloc: add `Box::into_pin` Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241217-hrtimer-v3-v6-12-rc2-v5-10-b34c20ac2cb7@kernel.org> References: <20241217-hrtimer-v3-v6-12-rc2-v5-0-b34c20ac2cb7@kernel.org> In-Reply-To: <20241217-hrtimer-v3-v6-12-rc2-v5-0-b34c20ac2cb7@kernel.org> To: Miguel Ojeda , Anna-Maria Behnsen , Frederic Weisbecker , Thomas Gleixner , Danilo Krummrich Cc: Alex Gaynor , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Alice Ryhl , Trevor Gross , Lyude Paul , Guangbo Cui <2407018371@qq.com>, Dirk Behme , Daniel Almeida , rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, Andreas Hindborg X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1038; i=a.hindborg@kernel.org; h=from:subject:message-id; bh=tQDyXQBkG1q5qjeehMfyrhkTdqTA2BWMVmg+Cs7DewM=; b=owEBbQKS/ZANAwAIAeG4Gj55KGN3AcsmYgBnYZYa8FW1fCsxZGSXIoOnApX+Ctiyu18dNwdOD tIhiDcX7YCJAjMEAAEIAB0WIQQSwflHVr98KhXWwBLhuBo+eShjdwUCZ2GWGgAKCRDhuBo+eShj d1YeD/9iWxBXfT7oNlagXsQrkPOKezGkUUCsvIrHvGRLU4pup1NktEhrtqZ6hxUxxC6X3VLh1P8 1rCRAKEZDwdZ2acgwEefH+qhF2ARQ5Jc6JVkBQ2mBH/qSaxniFg/002Klz7FqatgQyIGl8G9MsR XNXb6vgPzjx6HUXLKjUwOo4Cb5neHOCjKkwOHbxdW6xAx5OUZTvItv72FyvYBcT/4E2JFZPUbLu pn7DxxvgSVNvY2taDG2tYy0GyNRHTNAO1jiC0ir3dQNlsW5dLI2YattkS6iXFR9WfEDiBKjme7E yUTsiqXw6xMZ4UhjjC/tq/Z1FtXWEjf83G2w91cV6FGXp7K5/mwAevpqckZTBvoascY/1bC4BXF +Gy4fTN7A6Jmyj1pV3EyIYAbGxusbhE4MuyJCxb9iiqllkNedCL4TMq14qSSwoqTBa3q37PH9My 6uvhfFx4honW1niDKMJfGSGIbcN6udyONqsggiHwusQZfyJTtZlCvnHZCM1vzIty90Wai9CH8hy Sy+87htlJypAkrPsoUqRpcpa6os2k+symoNAMT2dA6fTKWhC9PQpp0VzsLYI4Mtgl03xDIN1CPe T/adAoNnoce7KDCKXbwIvDpRKQM/axCNGDulAI90GC76SirDxbabTP+cnT3InwBmDoKQDssbmsg jWciMDnZTXhChRg== X-Developer-Key: i=a.hindborg@kernel.org; a=openpgp; fpr=3108C10F46872E248D1FB221376EB100563EF7A7 Add an associated function to convert a `Box` into a `Pin>`. Signed-off-by: Andreas Hindborg --- rust/kernel/alloc/kbox.rs | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/rust/kernel/alloc/kbox.rs b/rust/kernel/alloc/kbox.rs index 9ce414361c2c6dd8eea09b11041f6c307cbc7864..76f29e2ac085e19871f18653cfd= df11d2594682c 100644 --- a/rust/kernel/alloc/kbox.rs +++ b/rust/kernel/alloc/kbox.rs @@ -245,6 +245,12 @@ pub fn pin(x: T, flags: Flags) -> Result= >, AllocError> Ok(Self::new(x, flags)?.into()) } =20 + /// Convert a [`Box`] to a [`Pin>`]. If `T` does not imp= lement + /// [`Unpin`], then `x` will be pinned in memory and can't be moved. + pub fn into_pin(boxed: Self) -> Pin { + boxed.into() + } + /// Forgets the contents (does not run the destructor), but keeps the = allocation. fn forget_contents(this: Self) -> Box, A> { let ptr =3D Self::into_raw(this); --=20 2.47.0