From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from wp530.webpack.hosteurope.de (wp530.webpack.hosteurope.de [80.237.130.52]) (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 686DD30FF2C; Mon, 18 Aug 2025 11:09:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.237.130.52 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755515390; cv=none; b=k2xLDylEYPGzZ064oAthOu0lzDzs0DvJelurV9AI9aLFRWGQqUl3/jSPfUHRnC7kVkJCsSDyjKs0YW8/Rmu/T3MQPEaYPZWdRlIj8P4XKc8OTrBHR7yCFxPW7uIArvxLsUNNZc2lKoC5JIlF0NrQ4bEDDNL6bY/3YqSKq0GYcSM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755515390; c=relaxed/simple; bh=8n5GupCLEuhx0wtjQRIf7NvAN9ecBgE2Ji61GnGuu2M=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=O6aXxeu18vzKgfBRPnU2psbKySI2BdLTKPcb9apWr51dEs25rekevBhY9igyh5OLJJj7d81Jpt8JdoxYKcfndZ/ZysBfRldpFgiywclI/UiVrZvwkJRtmQg17AkOHpOgCkLtVyHhMitmtAckvx0mZJDsdEnkqxIw2tzUH64bd3E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=leemhuis.info; spf=pass smtp.mailfrom=leemhuis.info; dkim=pass (2048-bit key) header.d=leemhuis.info header.i=@leemhuis.info header.b=GRpdzWov; arc=none smtp.client-ip=80.237.130.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=leemhuis.info Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=leemhuis.info Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=leemhuis.info header.i=@leemhuis.info header.b="GRpdzWov" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=leemhuis.info; s=he214686; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date:Message-ID:From: Sender:Reply-To:Subject:Date:Message-ID:To:Cc:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:In-Reply-To: References; bh=SPFZYYIEmOz63qGUOuLkE8hJrm4tJL5wiFLVGzeYuqQ=; t=1755515388; x=1755947388; b=GRpdzWovY5X9x/93oRjc2Pht2cb16SLaXo4MEqfGkzPWAp+OwPpU99BN2V6Bn Y/iuJBKId/S9wfCkzlRiurUlg4f9IuuFnSzjTWMuVZVcZTVA2AbKi496M9ymL12x+LAGHc5AlHsQJ 0frklJBdzKYoq5LET5/5riLZpVxxIy1IvEMMNVjmqbvcn3Grzno7jo/nL5mUFyAPIv1RMrcEfrwTN q+cgJPHyhl2hlTWELqHPaUwQkRlfUQoLQpguR+WKOKoMjve0xBh+FvVemHqNVBqYpJxtLfxhvoLcX gmt8fbpAyiJDhVSiybUTMNKNRlFdwk3A/m5GyLaxQfTSmqD2AQ==; Received: from [2a02:8108:8984:1d00:a0cf:1912:4be:477f]; authenticated by wp530.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_128_GCM:128) id 1unxjz-00BrQm-21; Mon, 18 Aug 2025 13:09:27 +0200 Message-ID: <8aa05f08-ef6e-4dfe-9453-beaab7b3cb98@leemhuis.info> Date: Mon, 18 Aug 2025 13:09:26 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 0/2] Take ARCH_KMALLOC_MINALIGN into account for build-time XArray check To: Alice Ryhl , Danilo Krummrich Cc: Lorenzo Stoakes , "Liam R. Howlett" , Matthew Wilcox , Tamir Duberstein , Andreas Hindborg , Miguel Ojeda , Boqun Feng , Gary Guo , =?UTF-8?Q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Trevor Gross , linux-mm@kvack.org, rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, Stephen Rothwell , Linux Next Mailing List , Andrew Morton References: <20250811-align-min-allocator-v2-0-3386cc94f4fc@google.com> From: Thorsten Leemhuis Content-Language: de-DE, en-US Autocrypt: addr=linux@leemhuis.info; keydata= xsFNBFJ4AQ0BEADCz16x4kl/YGBegAsYXJMjFRi3QOr2YMmcNuu1fdsi3XnM+xMRaukWby47 JcsZYLDKRHTQ/Lalw9L1HI3NRwK+9ayjg31wFdekgsuPbu4x5RGDIfyNpd378Upa8SUmvHik apCnzsxPTEE4Z2KUxBIwTvg+snEjgZ03EIQEi5cKmnlaUynNqv3xaGstx5jMCEnR2X54rH8j QPvo2l5/79Po58f6DhxV2RrOrOjQIQcPZ6kUqwLi6EQOi92NS9Uy6jbZcrMqPIRqJZ/tTKIR OLWsEjNrc3PMcve+NmORiEgLFclN8kHbPl1tLo4M5jN9xmsa0OZv3M0katqW8kC1hzR7mhz+ Rv4MgnbkPDDO086HjQBlS6Zzo49fQB2JErs5nZ0mwkqlETu6emhxneAMcc67+ZtTeUj54K2y Iu8kk6ghaUAfgMqkdIzeSfhO8eURMhvwzSpsqhUs7pIj4u0TPN8OFAvxE/3adoUwMaB+/plk sNe9RsHHPV+7LGADZ6OzOWWftk34QLTVTcz02bGyxLNIkhY+vIJpZWX9UrfGdHSiyYThHCIy /dLz95b9EG+1tbCIyNynr9TjIOmtLOk7ssB3kL3XQGgmdQ+rJ3zckJUQapLKP2YfBi+8P1iP rKkYtbWk0u/FmCbxcBA31KqXQZoR4cd1PJ1PDCe7/DxeoYMVuwARAQABzSdUaG9yc3RlbiBM ZWVtaHVpcyA8bGludXhAbGVlbWh1aXMuaW5mbz7CwZQEEwEKAD4CGwMFCwkIBwMFFQoJCAsF FgIDAQACHgECF4AWIQSoq8a+lZZX4oPULXVytubvTFg9LQUCX31PIwUJFmtPkwAKCRBytubv TFg9LWsyD/4t3g4i2YVp8RoKAcOut0AZ7/uLSqlm8Jcbb+LeeuzjY9T3mQ4ZX8cybc1jRlsL JMYL8GD3a53/+bXCDdk2HhQKUwBJ9PUDbfWa2E/pnqeJeX6naLn1LtMJ78G9gPeG81dX5Yq+ g/2bLXyWefpejlaefaM0GviCt00kG4R/mJJpHPKIPxPbOPY2REzWPoHXJpi7vTOA2R8HrFg/ QJbnA25W55DzoxlRb/nGZYG4iQ+2Eplkweq3s3tN88MxzNpsxZp475RmzgcmQpUtKND7Pw+8 zTDPmEzkHcUChMEmrhgWc2OCuAu3/ezsw7RnWV0k9Pl5AGROaDqvARUtopQ3yEDAdV6eil2z TvbrokZQca2808v2rYO3TtvtRMtmW/M/yyR233G/JSNos4lODkCwd16GKjERYj+sJsW4/hoZ RQiJQBxjnYr+p26JEvghLE1BMnTK24i88Oo8v+AngR6JBxwH7wFuEIIuLCB9Aagb+TKsf+0c HbQaHZj+wSY5FwgKi6psJxvMxpRpLqPsgl+awFPHARktdPtMzSa+kWMhXC4rJahBC5eEjNmP i23DaFWm8BE9LNjdG8Yl5hl7Zx0mwtnQas7+z6XymGuhNXCOevXVEqm1E42fptYMNiANmrpA OKRF+BHOreakveezlpOz8OtUhsew9b/BsAHXBCEEOuuUg87BTQRSeAENARAAzu/3satWzly6 +Lqi5dTFS9+hKvFMtdRb/vW4o9CQsMqL2BJGoE4uXvy3cancvcyodzTXCUxbesNP779JqeHy s7WkF2mtLVX2lnyXSUBm/ONwasuK7KLz8qusseUssvjJPDdw8mRLAWvjcsYsZ0qgIU6kBbvY ckUWkbJj/0kuQCmmulRMcaQRrRYrk7ZdUOjaYmjKR+UJHljxLgeregyiXulRJxCphP5migoy ioa1eset8iF9fhb+YWY16X1I3TnucVCiXixzxwn3uwiVGg28n+vdfZ5lackCOj6iK4+lfzld z4NfIXK+8/R1wD9yOj1rr3OsjDqOaugoMxgEFOiwhQDiJlRKVaDbfmC1G5N1YfQIn90znEYc M7+Sp8Rc5RUgN5yfuwyicifIJQCtiWgjF8ttcIEuKg0TmGb6HQHAtGaBXKyXGQulD1CmBHIW zg7bGge5R66hdbq1BiMX5Qdk/o3Sr2OLCrxWhqMdreJFLzboEc0S13BCxVglnPqdv5sd7veb 0az5LGS6zyVTdTbuPUu4C1ZbstPbuCBwSwe3ERpvpmdIzHtIK4G9iGIR3Seo0oWOzQvkFn8m 2k6H2/Delz9IcHEefSe5u0GjIA18bZEt7R2k8CMZ84vpyWOchgwXK2DNXAOzq4zwV8W4TiYi FiIVXfSj185vCpuE7j0ugp0AEQEAAcLBfAQYAQoAJgIbDBYhBKirxr6Vllfig9QtdXK25u9M WD0tBQJffU8wBQkWa0+jAAoJEHK25u9MWD0tv+0P/A47x8r+hekpuF2KvPpGi3M6rFpdPfeO RpIGkjQWk5M+oF0YH3vtb0+92J7LKfJwv7GIy2PZO2svVnIeCOvXzEM/7G1n5zmNMYGZkSyf x9dnNCjNl10CmuTYud7zsd3cXDku0T+Ow5Dhnk6l4bbJSYzFEbz3B8zMZGrs9EhqNzTLTZ8S Mznmtkxcbb3f/o5SW9NhH60mQ23bB3bBbX1wUQAmMjaDQ/Nt5oHWHN0/6wLyF4lStBGCKN9a TLp6E3100BuTCUCrQf9F3kB7BC92VHvobqYmvLTCTcbxFS4JNuT+ZyV+xR5JiV+2g2HwhxWW uC88BtriqL4atyvtuybQT+56IiiU2gszQ+oxR/1Aq+VZHdUeC6lijFiQblqV6EjenJu+pR9A 7EElGPPmYdO1WQbBrmuOrFuO6wQrbo0TbUiaxYWyoM9cA7v7eFyaxgwXBSWKbo/bcAAViqLW ysaCIZqWxrlhHWWmJMvowVMkB92uPVkxs5IMhSxHS4c2PfZ6D5kvrs3URvIc6zyOrgIaHNzR 8AF4PXWPAuZu1oaG/XKwzMqN/Y/AoxWrCFZNHE27E1RrMhDgmyzIzWQTffJsVPDMQqDfLBhV ic3b8Yec+Kn+ExIF5IuLfHkUgIUs83kDGGbV+wM8NtlGmCXmatyavUwNCXMsuI24HPl7gV2h n7RI In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-bounce-key: webpack.hosteurope.de;linux@leemhuis.info;1755515388;94df3ca1; X-HE-SMSGID: 1unxjz-00BrQm-21 On 15.08.25 21:12, Danilo Krummrich wrote: > On Mon Aug 11, 2025 at 2:31 PM CEST, Alice Ryhl wrote: >> Alice Ryhl (2): >> rust: alloc: specify the minimum alignment of each allocator > > [ Add helper for ARCH_KMALLOC_MINALIGN; remove cast to usize. - Danilo ] > >> rust: alloc: take the allocator into account for FOREIGN_ALIGN > > Applied to alloc-next, thanks! I had a build error with my daily linux-next builds for Fedora (using the Fedora rawhide config) on arm64 (ppc64le and x86_64 worked fine). >From a quick look it seems it might be due to this series, which turned up in -next today: """ error[E0428]: the name `ARCH_KMALLOC_MINALIGN` is defined multiple times --> /builddir/build/BUILD/kernel-6.17.0-build/kernel-next-20250818/linux-6.17.0-0.0.next.20250818.423.vanilla.fc44.aarch64/rust/bindings/bindings_generated.rs:134545:1 | 9622 | pub const ARCH_KMALLOC_MINALIGN: u32 = 8; | ----------------------------------------- previous definition of the value `ARCH_KMALLOC_MINALIGN` here ... 134545 | pub const ARCH_KMALLOC_MINALIGN: usize = 8; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ARCH_KMALLOC_MINALIGN` redefined here | = note: `ARCH_KMALLOC_MINALIGN` must be defined only once in the value namespace of this module error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0428`. make[2]: *** [rust/Makefile:539: rust/bindings.o] Error 1 make[1]: *** [/builddir/build/BUILD/kernel-6.17.0-build/kernel-next-20250818/linux-6.17.0-0.0.next.20250818.423.vanilla.fc44.aarch64/Makefile:1294: prepare] Error 2 make: *** [Makefile:256: __sub-make] Error 2 """ Full log: https://download.copr.fedorainfracloud.org/results/@kernel-vanilla/next/fedora-rawhide-aarch64/09439461-next-next-all/builder-live.log.gz Ciao, Thorsten