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 5A8D32571AF; Mon, 24 Feb 2025 12:05:51 +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=1740398752; cv=none; b=TYdLay5bXNVa+2Ou8eG0EBL4H048WY8k/e8SWsO7FkKwfj/vgQFrOnUUc+2ULSd+QDNX0BLmQLS24tfK9IC34XTiFYMAuRrTtlphEQuItqdno8Rbi7/+yjjAaRLhjBLejTLHUcKYgFQzsDg3WxPyLQ3jWmjbyB729XhZJzAroBA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740398752; c=relaxed/simple; bh=KyRv9U8051weSTZd8kIi5Ms6sAzIrGz2/6k73qD/frk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=PomKGbuGMVR/5mn4n3h60+R2pZjlPoFvCgeQ3OGR6xwicEAHr8MbCaQYgWw7FfFUDD4L728dka8Un8bftSRF5Sb6tTPJkPGjkzky1oiCGrmJVAqVIscjDpJQxdyovzOUpK1QTSaorYpj79V2TlRcy04bH4H4FvR69ZMIiyNGgGM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ssYWvRPD; 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="ssYWvRPD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 52782C4CEE6; Mon, 24 Feb 2025 12:05:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740398751; bh=KyRv9U8051weSTZd8kIi5Ms6sAzIrGz2/6k73qD/frk=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=ssYWvRPDbY2189UpnKSqy2Y9jwstzajC7ELmwVXefkKNG3aP1C7csCTqiOgKn+nIC fFmSwAd++NqhxVtkss7FSxkMchO7xS0yRql8h/wn47/5oCnCXbf2svgsqzlkpKZlCE VBvijNHSipxWT6uZJrFA1eSv9B9mxId0mDTeRqvXWakN3F/RBdsnzpt/efTg/2rIZP MKZNl9A53pn43BaXGFLv43W5LSCa0iqTO54wppId0iOh9BuA0xgbR7WQVieOb3pio0 Oy9Bn9MfEEY6yDFNTM/5YlZ/YarDjlZcTWmViEUpzwM2fs2zqA8otNZQOdiFDe0tK6 EI43k7IrXXUIQ== From: Andreas Hindborg Date: Mon, 24 Feb 2025 13:03:43 +0100 Subject: [PATCH v9 09/13] rust: alloc: add `Box::into_pin` 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: <20250224-hrtimer-v3-v6-12-rc2-v9-9-5bd3bf0ce6cc@kernel.org> References: <20250224-hrtimer-v3-v6-12-rc2-v9-0-5bd3bf0ce6cc@kernel.org> In-Reply-To: <20250224-hrtimer-v3-v6-12-rc2-v9-0-5bd3bf0ce6cc@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 , 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=1078; i=a.hindborg@kernel.org; h=from:subject:message-id; bh=KyRv9U8051weSTZd8kIi5Ms6sAzIrGz2/6k73qD/frk=; b=owEBbQKS/ZANAwAIAeG4Gj55KGN3AcsmYgBnvGAkQWtjGodQLW4tALY0jSA9lpLHTC5fOUlpG 360ZMN5d/iJAjMEAAEIAB0WIQQSwflHVr98KhXWwBLhuBo+eShjdwUCZ7xgJAAKCRDhuBo+eShj d71jEACrVO9TMxmnAzqxlZrqLpnLqpP2/pPRzcrGxh3mwLMJ/Pz7+Hgq9rk8bmVD5tRUeVqMNxd UN9K3I2XCSUs2CztGW4C1IbCjrvvNM7JXteaUj3/1+78YlhmRU+dEzDpiahLpx2wXlCTw7LZDfO Dv+tV6X+8hUDG87vB1K26DpE3efB+cQ4kSXJOs0dp5iywteG5dEl/cZysdlxBGDmyId++uPTW3K qBoer+QT+zk4fg1ajsSB2ZldX2ND0wcvlti1k+0yS9gIpZroAK+PdsDpLN119C63AsBmKxuSXzH SRTWJmfqxpAxgtqa8jyD5efOZPSqROJPugBNgqN4aoY+OmisiyXrW81nV7isj4tBJGGJi6W3HGT 9/BxjShNvHrlgz/XcM2cjjvr9x6NowPLQWRAfceOs7h0LDdXfxY+yWv103bmkQ4NphtoOmTbbJT XYAQORmCWnGE2x+eEsBP3Kecya0p0ISaSWjwrfiK+Y0l7qIXBOceaOVbpeT2kCoaQ2gHrUIzApt yq2eMBFlhUCQNpAHduHpVdHTKn/3jHw5sZZ8VU4SYugneKGyWhSMOHEkhyzJ13FTmoehfiuwtHp Wsc2AVciSJQ3XJ0jVwaPjCVmgoLJccOj5k8Vy0ZuAAp0p8pisHz8SRXvhJOV9rRCvcxPFvqpVzU GCzRoIOC8fSTbhw== 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 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()) } + /// Convert a [`Box`] to a [`Pin>`]. If `T` does not implement + /// [`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 = Self::into_raw(this); -- 2.47.0