From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F243FCDE008 for ; Fri, 26 Jun 2026 11:56:33 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id E0FCF6B0138; Fri, 26 Jun 2026 07:56:27 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id DBF7C6B013A; Fri, 26 Jun 2026 07:56:27 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CB1346B013B; Fri, 26 Jun 2026 07:56:27 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id A3F7D6B0138 for ; Fri, 26 Jun 2026 07:56:27 -0400 (EDT) Received: from smtpin06.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 22081A0422 for ; Fri, 26 Jun 2026 11:56:27 +0000 (UTC) X-FDA: 84921911214.06.A7480D9 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf12.hostedemail.com (Postfix) with ESMTP id 571BA40008 for ; Fri, 26 Jun 2026 11:56:25 +0000 (UTC) Authentication-Results: imf12.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=HkuZ7XBk; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf12.hostedemail.com: domain of a.hindborg@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=a.hindborg@kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1782474985; b=XaxPODUOS4RwIDdhK15SA+AbKqgn9twKVsrBHeUfx/pBqVr+vaQ1BP+vsCWPRROc4jLASg M36f/Nl2ZvIBKzFOzHl9hLokG4a8keFA+MOWGnwz2bFQn1HE8HIZzrCjmbdz9SS4fA1WcA PvtNYr4C9jKjBmMh4XGLraHv4+e0QPo= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1782474985; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=9MHwt/piGbHaBX1U0Ciw0A9tLdy3GnbZtG5V2/pNbH0=; b=HD//Zxi7+viRhAUlAQn98hT1sIZAIbiU4VZOAGZOT5LSzRkTGL0LU0MhIgecYgcaGj9WLb lhqZa4GA7FrEaFEvVbMmeDzvtoKF2y2IGxO1YirKwmJUgpSsQD6vjYz1KxUh091HfRAmZ6 MPxUohIxakTaEmtPwZ30slb8GqsR+6g= ARC-Authentication-Results: i=1; imf12.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=HkuZ7XBk; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf12.hostedemail.com: domain of a.hindborg@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=a.hindborg@kernel.org Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id E902760098; Fri, 26 Jun 2026 11:56:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 32BDD1F000E9; Fri, 26 Jun 2026 11:56:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782474984; bh=9MHwt/piGbHaBX1U0Ciw0A9tLdy3GnbZtG5V2/pNbH0=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=HkuZ7XBkNBbPpmNh0jHv41Wuw70A+GdUFYjWET1qmXcQIKjTVrIaymEhyhQxZiJDQ OYQaC+YTngeDtEXGcTZg2nrhdNP6R8cyrSArn0Vcg4mmq7Hto8gxALTcWSWfRU8kgb i1NX1hBZ94yWCUrkJOY2045ItoVFnZTRZkQr1dHUJS9nY+rKTbTq6HIwWBAr/01JNd oDiP18WI45XFmDdzBNkxdUAOofCB8I9OwzTdx5AOBXno0NZp0mktQRseoVeUXD9ds/ Ea6yM6KoBk2H/UJkJmv+1gH1PriKePYHNbY2wWHbjbguzGKMCCtNXrSSLLiaCwHwV6 ioGjyljtNEVjg== From: Andreas Hindborg Date: Fri, 26 Jun 2026 13:53:58 +0200 Subject: [PATCH v19 1/8] rust: alloc: add `KBox::into_non_null` MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260626-unique-ref-v19-1-2607ca88dfdf@kernel.org> References: <20260626-unique-ref-v19-0-2607ca88dfdf@kernel.org> In-Reply-To: <20260626-unique-ref-v19-0-2607ca88dfdf@kernel.org> To: Danilo Krummrich , Lorenzo Stoakes , Vlastimil Babka , "Liam R. 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This is a convenience wrapper around `Self::into_raw` for callers that need a `NonNull` pointer rather than a raw pointer. Signed-off-by: Andreas Hindborg Reviewed-by: Alice Ryhl Reviewed-by: Gary Guo --- rust/kernel/alloc/kbox.rs | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/rust/kernel/alloc/kbox.rs b/rust/kernel/alloc/kbox.rs index 35d1e015848dd..d534e8adcf7b3 100644 --- a/rust/kernel/alloc/kbox.rs +++ b/rust/kernel/alloc/kbox.rs @@ -211,6 +211,15 @@ pub fn leak<'a>(b: Self) -> &'a mut T { // which points to an initialized instance of `T`. unsafe { &mut *Box::into_raw(b) } } + + /// Consumes the `Box` and returns a `NonNull`. + /// + /// Like [`Self::into_raw`], but returns a `NonNull`. + #[inline] + pub fn into_non_null(b: Self) -> NonNull { + // SAFETY: `KBox::into_raw` returns a valid pointer. + unsafe { NonNull::new_unchecked(Self::into_raw(b)) } + } } impl Box, A> -- 2.51.2