From nobody Mon Feb 9 17:22:31 2026 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 A39E2259499; Fri, 7 Mar 2025 21:41:19 +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=1741383679; cv=none; b=m/iM8jEIHBRX+CUmmuubsBBSCq/sNrXJXJdElzIx+Oe4Un0+VbPp+yI0tYyw7pHJZ0F8frLfKosDZ8PE26TztKdUiXquAbhDd4Q6iFNnlLLLGtbU/JwZv0CBdZi/DyNU0xpP7Kk9atXUfVOsO2OuB8fdEKBQnP1pr+7Vaw1EOdw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741383679; c=relaxed/simple; bh=Wo/kUAupEBOIsOdnruISz8EyJEcYwqNCGfSTf35FejE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=pkp6tN7gzaF5lQ+WPXJzj4Wa7/QN/bHQWmQBocLhCwCRj0IbMJ+RSlholr/UCmJTGu50wIPjA86/+Xg2lOF971Qi9jaA5mFwlsliqx4WQS2D66YqCshnBxsBHBcc+Masznc6V62aQBRfsKQcyqf9qeYjmT4zkYQeCFSZnBxvQn4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=eesdVX97; 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="eesdVX97" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9A057C4CED1; Fri, 7 Mar 2025 21:41:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741383679; bh=Wo/kUAupEBOIsOdnruISz8EyJEcYwqNCGfSTf35FejE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=eesdVX970O1ZLcX1890CYzVzhQZskAHIXQQ+L8O48lgJfnQldu4G4s6G5nN0nW1a0 fbdEskiN9yQPIkTnG4Lzj2RQNTkxlv9BEACJZt8nl6AxikqXzMMY/srfUwGRldSWaf Dxc2gZKZeKWahhAbsHF1oeHipASoqkfpy9lDvM0TOnDhaGTfBunEMLJvmoUTY+wmMl yVXRV8t+LY37xhbFuCsGHc31UMmkiCuZAsqJzr6ru9ALfwqBhgI/gFWgZ4904IWZfX vFHH0qbTnp0QWv+sDEoNrl6I/Q2PUJuSApXAi8WUcdpiGUetGDX4WQOI1uWRR8CdGw r0ZmV5ObKIcVQ== From: Andreas Hindborg Date: Fri, 07 Mar 2025 22:38:50 +0100 Subject: [PATCH v11 09/13] 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: <20250307-hrtimer-v3-v6-12-rc2-v11-9-7934aefd6993@kernel.org> References: <20250307-hrtimer-v3-v6-12-rc2-v11-0-7934aefd6993@kernel.org> In-Reply-To: <20250307-hrtimer-v3-v6-12-rc2-v11-0-7934aefd6993@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 , Tamir Duberstein , Markus Elfring , 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=1122; i=a.hindborg@kernel.org; h=from:subject:message-id; bh=Wo/kUAupEBOIsOdnruISz8EyJEcYwqNCGfSTf35FejE=; b=owEBbQKS/ZANAwAIAeG4Gj55KGN3AcsmYgBny2dxu/uhgLXT7ISorpd9dg7cQ6aCdcpzjSVD0 hE6u7bqfmWJAjMEAAEIAB0WIQQSwflHVr98KhXWwBLhuBo+eShjdwUCZ8tncQAKCRDhuBo+eShj d3RkEACw0J7jf/OJbzg4z1iUe2dA9nuDP+2rFlcDoqbvi2uYACTPlOXgx72MhTE8C9KKGxvswUy D45WP+UEnVvxLwsWrHZxZWPl2KQExmrhsE/08x2/7W7HGDMI9Qc+mY7MtfOlI1gZZRf+85/hWOf EQ2EiY8a2AGvRs3mSCrmOyJFnZQMdEfUfQRufmCFuHGTvJt47tuz3EwkmAzd+UWJMouAB8TuT8O UaH6XWVWrwQbFQfhaDMhX/iOk0M6FbpodOZItKoD7nwv+Kde4GLYjdTCMlpJRdZo4uIg/K2iU5g 6qAvUc0nxfP1ahIqPCe294HhMGAA/byZdfb8+bFzGDK2qMFKW8s1qIhZbxigEmt/reK7zu57zkz Na2bbpAVjOarCMWo/jH0ymhCxyeNos1M3rsGN4CDOpcSMchxdVS3Xt0cNkFaj/MohNKdYmEw1Tn VY/nxdzaTdxM3dKggAYC6BEE8MwDBsNSXAOn2ilbEQa7x3AFWPeKEw+h0oqe6DKmmILGaFx6jm5 mHuKKogvyAWeA5iD3NUNVxfBt4JU6zLQasBzgY/01WidoRmUMRgjUrJ6joLZIlgDI2vsjDvDiBD T+3uNKhawh7+cKl06gBahMZ8iTLBuLqkE1ojcKUFvUlfAoNXyCKkmh7MMAK/d+ZLwwY7/VPXtLm SCElTRVrLjaeu1g== X-Developer-Key: i=a.hindborg@kernel.org; a=openpgp; fpr=3108C10F46872E248D1FB221376EB100563EF7A7 Add an associated function to convert a `Box` into a `Pin>`. Acked-by: Danilo Krummrich Reviewed-by: Benno Lossin Reviewed-by: Lyude Paul 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 cb4ebea3b074..9da4a32e60bc 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(this: Self) -> Pin { + this.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