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 92B601DA3D for ; Fri, 8 Aug 2025 18:12:30 +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=1754676750; cv=none; b=jHCm0X68PAl7OPTYPuAI7zaodCLBEwnSg9FKdrUsB8NDjIYv9PCd8guiAtFIhZNu5wJv09N2f4vzOKUx71Gyu7GNkvYXACkMkZP5Eo0U6P0VXn1c+W34DMr6RvS7N18ds3HIJ6twgUOURaVwpeGHquDSdDgMzsObJkOEr5R80Bo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754676750; c=relaxed/simple; bh=iJoYPl3qNwWXMrX3Fe3H6Bnv++cB+fO9kMhqD86lXPA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=t4BiY5rgtFCDEURUOpteNL3p1Tj5LO5lA2Ddk6QmFxAuDkM6GN9dKGPMIFlcvM+lu8kOu8NhOCTR9Kjayi0UyAAv3e94Rb8U7qKOyxoMaeeXjomvjPGdkb7GhqvrvCQZayrg88y2w/UUMrPSF57MzAhWYZNhiPm4lrQwmf2f2Ms= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TqiYuvKb; 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="TqiYuvKb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0E784C4CEED; Fri, 8 Aug 2025 18:12:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1754676750; bh=iJoYPl3qNwWXMrX3Fe3H6Bnv++cB+fO9kMhqD86lXPA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TqiYuvKbhCp0zwV03Un5fPfUeH75SFJcT/qi/VRVTrk1mwgKZIH9sx7cPlrHQFWiC Yi9hdiAmoR2xWFqRMPtimDzR6FlMh+AJ3Qu4gKTsUqbmZ6Q6c7TqLJNnHcd72PYcB0 TLlUIvm8yR0+BbFifLAWD7QISI7e+gagQg9e+MTvBQuEgGrHiZlJdztaAy580GyRok kdlTZOLo24wXmAw59if2P3WHFmd4B8CPQStualybYSnnxSB4ByGyM3ZUgTX8CEl1cx UD+mfYtlu/0V4VeZbMc8HHqFWsEx9yalGfE0XV+Q1dEkzh+cVZEvpYguTYzCuxhxOl /d8u/IZiKSwJg== From: Danilo Krummrich To: lorenzo.stoakes@oracle.com, vbabka@suse.cz, Liam.Howlett@oracle.com, urezki@gmail.com, ojeda@kernel.org, alex.gaynor@gmail.com, boqun.feng@gmail.com, gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org, a.hindborg@kernel.org, aliceryhl@google.com, tmgross@umich.edu, abdiel.janulgue@gmail.com, acourbot@nvidia.com Cc: rust-for-linux@vger.kernel.org, Danilo Krummrich Subject: [PATCH v3 6/7] rust: alloc: layout: implement ArrayLayout::size() Date: Fri, 8 Aug 2025 20:10:20 +0200 Message-ID: <20250808181155.223504-7-dakr@kernel.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250808181155.223504-1-dakr@kernel.org> References: <20250808181155.223504-1-dakr@kernel.org> Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Provide a convenience method for ArrayLayout to calculate the size of the ArrayLayout in bytes. Reviewed-by: Alexandre Courbot Reviewed-by: Alice Ryhl Signed-off-by: Danilo Krummrich --- rust/kernel/alloc/layout.rs | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/rust/kernel/alloc/layout.rs b/rust/kernel/alloc/layout.rs index 93ed514f7cc7..5c3db8e9f930 100644 --- a/rust/kernel/alloc/layout.rs +++ b/rust/kernel/alloc/layout.rs @@ -98,6 +98,11 @@ pub const fn len(&self) -> usize { pub const fn is_empty(&self) -> bool { self.len == 0 } + + /// Returns the size of the [`ArrayLayout`] in bytes. + pub const fn size(&self) -> usize { + self.len() * size_of::() + } } impl From> for Layout { -- 2.50.1