From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (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 A63DB38A703; Tue, 7 Apr 2026 23:00:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775602845; cv=none; b=VSa9a/eFrUDoEyw1hAU/J/Q4Ker1U+waGp5OPguzZrSwNBKCV/eobTFBCtc9MGj79/zDdXplo9Sxf/vSp50QB/AtvlKki0ZZzwwNXSZAsz+Hj0RRcD+/+QzcNnKElMd9dqyuHa2/UzHRfidC4/nu8v2bg3zlBvXIEWSWpzn4jtI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775602845; c=relaxed/simple; bh=Sy+BRlelaZG9WDkntYDY0tGb4c5RFFjT9XQH/dTL29Y=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=CudZ7clGfB4fpJaWZlRo/IOqWkpzlX0Y3dYX2wPGmzcgWcBvycjaxF+2fNE/XsynDQxga8NAY/b9s1/AzEMJ4V8ebhjrRLT/8VKJ0kvAdJ1JQSV8MeOZAHpAHOSoJp/Kmter5tWB6Gnn0v0K2FDzJ5Fe7ATQ2rPhEn2CFCYSXfU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=S9aE7Jri; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="S9aE7Jri" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1775602844; x=1807138844; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=Sy+BRlelaZG9WDkntYDY0tGb4c5RFFjT9XQH/dTL29Y=; b=S9aE7Jri5xeH/pTVf7SDh7JB7etjE0xjwWKSQcsMa2TY9GxbmdIX5aUF O66JnDwvtQTg9+KaixQSbj0DFyUaN6jlE5OV7OiT8mGfPmm3ewC2qIaEx 2VFKax63KV4X8Nt6dp+BZG5M3Snk3pTzZQDs5EA3wJopbGiuzDa0RSzc0 KFOC8P3nj1wUgtm0D+FPuvS2tlD9yFeD+5LnUNVpSxUeS7BhmKeLwnLHk 1mE2EJxrC96Vdg5odhbZR4kpJ2NJSia1vp2SBzy2vh9x8h7tY44g7xY0H caMskLX2L5S1EoRJ7cDRvwKtxNVjDVcvDpUftTmfCOv0zHNpJKUH3KoSy g==; X-CSE-ConnectionGUID: wcC93vPjTT66S/0bsYfgRw== X-CSE-MsgGUID: vj+zWIRsRh6vn/ykLMHwIA== X-IronPort-AV: E=McAfee;i="6800,10657,11752"; a="80172439" X-IronPort-AV: E=Sophos;i="6.23,166,1770624000"; d="scan'208";a="80172439" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Apr 2026 16:00:44 -0700 X-CSE-ConnectionGUID: amAf8Z1ET6+Wd9Sj3IGtug== X-CSE-MsgGUID: 6+CcoNjQSliMz+efVPcfFQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,166,1770624000"; d="scan'208";a="258725579" Received: from igk-lkp-server01.igk.intel.com (HELO 9958d990ccf2) ([10.211.93.152]) by orviesa002.jf.intel.com with ESMTP; 07 Apr 2026 16:00:40 -0700 Received: from kbuild by 9958d990ccf2 with local (Exim 4.98.2) (envelope-from ) id 1wAFPS-00000000ALt-0ZP8; Tue, 07 Apr 2026 23:00:38 +0000 Date: Wed, 8 Apr 2026 01:00:16 +0200 From: kernel test robot To: Christian Benton , ojeda@kernel.org Cc: oe-kbuild-all@lists.linux.dev, viro@zeniv.linux.org.uk, brauner@kernel.org, rust-for-linux@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, aliceryhl@google.com, lossin@kernel.org, Christian Benton Subject: Re: [PATCH] rust: seq_file: add puts, putc, write, and hex_dump methods Message-ID: <202604080005.U3yjfXzs-lkp@intel.com> References: <20260403233900.24640-1-t1bur0n.kernel.org@protonmail.ch> 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=us-ascii Content-Disposition: inline In-Reply-To: <20260403233900.24640-1-t1bur0n.kernel.org@protonmail.ch> Hi Christian, kernel test robot noticed the following build errors: [auto build test ERROR on brauner-vfs/vfs.all] [also build test ERROR on rust/rust-next linus/master v7.0-rc7 next-20260407] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Christian-Benton/rust-seq_file-add-puts-putc-write-and-hex_dump-methods/20260407-211720 base: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git vfs.all patch link: https://lore.kernel.org/r/20260403233900.24640-1-t1bur0n.kernel.org%40protonmail.ch patch subject: [PATCH] rust: seq_file: add puts, putc, write, and hex_dump methods config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260408/202604080005.U3yjfXzs-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) rustc: rustc 1.88.0 (6b00bc388 2025-06-23) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260408/202604080005.U3yjfXzs-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202604080005.U3yjfXzs-lkp@intel.com/ All error/warnings (new ones prefixed by >>): PATH=/opt/cross/clang-20/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin INFO PATH=/opt/cross/rustc-1.88.0-bindgen-0.72.1/cargo/bin:/opt/cross/clang-20/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin /usr/bin/timeout -k 100 12h /usr/bin/make KCFLAGS=\ -fno-crash-diagnostics\ -Wno-error=return-type\ -Wreturn-type\ -funsigned-char\ -Wundef\ -falign-functions=64 W=1 --keep-going LLVM=1 -j32 -C source O=/kbuild/obj/consumer/x86_64-rhel-9.4-rust ARCH=x86_64 SHELL=/bin/bash rustfmtcheck make: Entering directory '/kbuild/src/consumer' make[1]: Entering directory '/kbuild/obj/consumer/x86_64-rhel-9.4-rust' >> Diff in rust/kernel/seq_file.rs:4: //! //! C header: [`include/linux/seq_file.h`](srctree/include/linux/seq_file.h) -use crate::{bindings, ffi, fmt, str::CStr, str::CStrExt as _, types::NotThreadSafe, types::Opaque}; +use crate::{ + bindings, ffi, fmt, str::CStr, str::CStrExt as _, types::NotThreadSafe, types::Opaque, +}; /// A utility for generating the contents of a seq file. #[repr(transparent)] >> Diff in rust/kernel/seq_file.rs:4: //! //! C header: [`include/linux/seq_file.h`](srctree/include/linux/seq_file.h) -use crate::{bindings, ffi, fmt, str::CStr, str::CStrExt as _, types::NotThreadSafe, types::Opaque}; +use crate::{ + bindings, ffi, fmt, str::CStr, str::CStrExt as _, types::NotThreadSafe, types::Opaque, +}; /// A utility for generating the contents of a seq file. #[repr(transparent)] make[2]: *** [Makefile:1916: rustfmt] Error 123 make[1]: Leaving directory '/kbuild/obj/consumer/x86_64-rhel-9.4-rust' make[1]: *** [Makefile:248: __sub-make] Error 2 make[2]: Target 'rustfmtcheck' not remade because of errors. make[1]: Target 'rustfmtcheck' not remade because of errors. make: *** [Makefile:248: __sub-make] Error 2 make: Target 'rustfmtcheck' not remade because of errors. make: Leaving directory '/kbuild/src/consumer' -- >> warning: methods called `as_*` usually take `self` by reference or `self` by mutable reference --> rust/kernel/seq_file.rs:27:17 | 27 | fn as_c_int(self) -> ffi::c_int { | ^^^^ | = help: consider choosing a less ambiguous name = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention = note: `-W clippy::wrong-self-convention` implied by `-W clippy::all` = help: to override `-W clippy::all` add `#[allow(clippy::wrong_self_convention)]` -- >> warning: casts from `u8` to `i32` can be expressed infallibly using `From` --> rust/kernel/seq_file.rs:119:17 | 119 | rowsize as ffi::c_int, | ^^^^^^^^^^^^^^^^^^^^^ | = help: an `as` cast can become silently lossy if the types change in the future = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless = note: requested on the command line with `-W clippy::cast-lossless` help: use `ffi::c_int::from` instead | 119 - rowsize as ffi::c_int, 119 + ffi::c_int::from(rowsize), | -- >> warning: casts from `u8` to `i32` can be expressed infallibly using `From` --> rust/kernel/seq_file.rs:120:17 | 120 | groupsize as ffi::c_int, | ^^^^^^^^^^^^^^^^^^^^^^^ | = help: an `as` cast can become silently lossy if the types change in the future = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless help: use `ffi::c_int::from` instead | 120 - groupsize as ffi::c_int, 120 + ffi::c_int::from(groupsize), | -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki