From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) (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 ECDA02A1C9; Sun, 25 May 2025 11:15:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748171747; cv=none; b=k/zfrrPwbHqVT6V3ZFCwTx6RKH8VZNO4vgb8eS2x5gf8hiTz6aJJeOR5uLPGu2fYe34zwtFd+bY/K87zfiqDN7fsCgbJ+arpyMQC+cTmYgh/6zN0h1J/grEOHvtJdZEK67kzh7gZ4+OIU3t5grY3x+RfPuF1fTj3ePntmPaTGCg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748171747; c=relaxed/simple; bh=OT/JUaxbumpSuUDNK8SNN2PlfsW6Ib3r801CZFNEln8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=aPhNcyWJdNfQoxZMQF0rqhqPUoHsFgMDP+OIn6yR8Y/uAEd10Hkm5DFpYl5kj6TC2wz3dnaxXE0lIqsN8aSYPbyBkTC0TgYpYIa4wWO9Ftq/JzRr0ylTUaP/3XtBkCCEOvW+s9NvhkLVbDqB+NGMmeDrgIyPxGFDX5Lo2HIdEbw= 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=C6b1/aui; arc=none smtp.client-ip=192.198.163.16 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="C6b1/aui" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1748171745; x=1779707745; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=OT/JUaxbumpSuUDNK8SNN2PlfsW6Ib3r801CZFNEln8=; b=C6b1/auiGUIREOLEP+HI8XWgHPIr/MFBVgv8Zy3Dr17oOlp4palbQKpF ZBfo6C4ScL2wJUC7opYxu/8Px1Ce5ROAoCETFFltTDZ+ftvr1VxSDHWoT ybA8vb8eyBy+4V8pkFP2mFBovRJoOJRVfq5ap5rA+v39pYCoEQ8jugQ0J 744yyT3Ht7gQmkSGJTnj4O5gVOz7Q9MpKwlPKLlePAHWVpZz509qcgCSH hKs+8g97xRnbQ3E6BTaswUxZqUB8wYUCnoyfj/pc23n5Na7O6FcHsEvIQ 5YVqhD3mNvi/3JX1+6WzBtMoc7PznA77rtoLI2tLgAtgYbALg+/nSyo9T g==; X-CSE-ConnectionGUID: ckVgSwd1Q2WvTL3yI6YWPA== X-CSE-MsgGUID: AuQhAXWTSwSWZSCzcnSbmQ== X-IronPort-AV: E=McAfee;i="6700,10204,11443"; a="37786211" X-IronPort-AV: E=Sophos;i="6.15,313,1739865600"; d="scan'208";a="37786211" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 May 2025 04:15:45 -0700 X-CSE-ConnectionGUID: i7C2EKR5RrafQ/zVUiR9kQ== X-CSE-MsgGUID: M0vn/PrRSPOp27HiRFbiMg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,313,1739865600"; d="scan'208";a="142488463" Received: from lkp-server01.sh.intel.com (HELO 1992f890471c) ([10.239.97.150]) by orviesa007.jf.intel.com with ESMTP; 25 May 2025 04:15:40 -0700 Received: from kbuild by 1992f890471c with local (Exim 4.96) (envelope-from ) id 1uJ9KL-000Rma-2F; Sun, 25 May 2025 11:15:37 +0000 Date: Sun, 25 May 2025 19:14:52 +0800 From: kernel test robot To: xur@google.com, Masahiro Yamada , Nathan Chancellor , Eric Naim , Nicolas Schier , Nick Desaulniers , Bill Wendling , Justin Stitt , Miguel Ojeda , Thomas Gleixner , Alice Ryhl , Sami Tolvanen , "Mike Rapoport (Microsoft)" , Rafael Aquini , Michael Ellerman , Stafford Horne , Christophe Leroy , Teresa Johnson Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, llvm@lists.linux.dev Subject: Re: [PATCH v3] kbuild: distributed build support for Clang ThinLTO Message-ID: <202505251836.qXs81x9F-lkp@intel.com> References: <20250521213534.3159514-1-xur@google.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250521213534.3159514-1-xur@google.com> Hi, kernel test robot noticed the following build warnings: [auto build test WARNING on masahiroy-kbuild/for-next] [also build test WARNING on masahiroy-kbuild/fixes linus/master v6.15-rc7 next-20250523] [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/xur-google-com/kbuild-distributed-build-support-for-Clang-ThinLTO/20250522-053726 base: https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git for-next patch link: https://lore.kernel.org/r/20250521213534.3159514-1-xur%40google.com patch subject: [PATCH v3] kbuild: distributed build support for Clang ThinLTO config: arm64-randconfig-r131-20250525 (https://download.01.org/0day-ci/archive/20250525/202505251836.qXs81x9F-lkp@intel.com/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8) reproduce: (https://download.01.org/0day-ci/archive/20250525/202505251836.qXs81x9F-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/202505251836.qXs81x9F-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> mm/sparse-vmemmap.c:442:21: sparse: sparse: cast to non-scalar >> mm/sparse-vmemmap.c:442:21: sparse: sparse: cast from non-scalar mm/sparse-vmemmap.c: note: in included file (through include/linux/pgtable.h, include/linux/mm.h): arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast to non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast from non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast to non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast from non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast to non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast from non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast to non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast from non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast to non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast from non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast to non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast from non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast to non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast from non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast to non-scalar arch/arm64/include/asm/pgtable.h:339:16: sparse: sparse: cast from non-scalar vim +442 mm/sparse-vmemmap.c 2045a3b8911b6e Feiyang Chen 2022-10-27 415 2045a3b8911b6e Feiyang Chen 2022-10-27 416 int __meminit vmemmap_populate_hugepages(unsigned long start, unsigned long end, 2045a3b8911b6e Feiyang Chen 2022-10-27 417 int node, struct vmem_altmap *altmap) 2045a3b8911b6e Feiyang Chen 2022-10-27 418 { 2045a3b8911b6e Feiyang Chen 2022-10-27 419 unsigned long addr; 2045a3b8911b6e Feiyang Chen 2022-10-27 420 unsigned long next; 2045a3b8911b6e Feiyang Chen 2022-10-27 421 pgd_t *pgd; 2045a3b8911b6e Feiyang Chen 2022-10-27 422 p4d_t *p4d; 2045a3b8911b6e Feiyang Chen 2022-10-27 423 pud_t *pud; 2045a3b8911b6e Feiyang Chen 2022-10-27 424 pmd_t *pmd; 2045a3b8911b6e Feiyang Chen 2022-10-27 425 2045a3b8911b6e Feiyang Chen 2022-10-27 426 for (addr = start; addr < end; addr = next) { 2045a3b8911b6e Feiyang Chen 2022-10-27 427 next = pmd_addr_end(addr, end); 2045a3b8911b6e Feiyang Chen 2022-10-27 428 2045a3b8911b6e Feiyang Chen 2022-10-27 429 pgd = vmemmap_pgd_populate(addr, node); 2045a3b8911b6e Feiyang Chen 2022-10-27 430 if (!pgd) 2045a3b8911b6e Feiyang Chen 2022-10-27 431 return -ENOMEM; 2045a3b8911b6e Feiyang Chen 2022-10-27 432 2045a3b8911b6e Feiyang Chen 2022-10-27 433 p4d = vmemmap_p4d_populate(pgd, addr, node); 2045a3b8911b6e Feiyang Chen 2022-10-27 434 if (!p4d) 2045a3b8911b6e Feiyang Chen 2022-10-27 435 return -ENOMEM; 2045a3b8911b6e Feiyang Chen 2022-10-27 436 2045a3b8911b6e Feiyang Chen 2022-10-27 437 pud = vmemmap_pud_populate(p4d, addr, node); 2045a3b8911b6e Feiyang Chen 2022-10-27 438 if (!pud) 2045a3b8911b6e Feiyang Chen 2022-10-27 439 return -ENOMEM; 2045a3b8911b6e Feiyang Chen 2022-10-27 440 2045a3b8911b6e Feiyang Chen 2022-10-27 441 pmd = pmd_offset(pud, addr); 2045a3b8911b6e Feiyang Chen 2022-10-27 @442 if (pmd_none(READ_ONCE(*pmd))) { 2045a3b8911b6e Feiyang Chen 2022-10-27 443 void *p; 2045a3b8911b6e Feiyang Chen 2022-10-27 444 2045a3b8911b6e Feiyang Chen 2022-10-27 445 p = vmemmap_alloc_block_buf(PMD_SIZE, node, altmap); 2045a3b8911b6e Feiyang Chen 2022-10-27 446 if (p) { 2045a3b8911b6e Feiyang Chen 2022-10-27 447 vmemmap_set_pmd(pmd, p, node, addr, next); 2045a3b8911b6e Feiyang Chen 2022-10-27 448 continue; 2045a3b8911b6e Feiyang Chen 2022-10-27 449 } else if (altmap) { 2045a3b8911b6e Feiyang Chen 2022-10-27 450 /* 2045a3b8911b6e Feiyang Chen 2022-10-27 451 * No fallback: In any case we care about, the 2045a3b8911b6e Feiyang Chen 2022-10-27 452 * altmap should be reasonably sized and aligned 2045a3b8911b6e Feiyang Chen 2022-10-27 453 * such that vmemmap_alloc_block_buf() will always 2045a3b8911b6e Feiyang Chen 2022-10-27 454 * succeed. For consistency with the PTE case, 2045a3b8911b6e Feiyang Chen 2022-10-27 455 * return an error here as failure could indicate 2045a3b8911b6e Feiyang Chen 2022-10-27 456 * a configuration issue with the size of the altmap. 2045a3b8911b6e Feiyang Chen 2022-10-27 457 */ 2045a3b8911b6e Feiyang Chen 2022-10-27 458 return -ENOMEM; 2045a3b8911b6e Feiyang Chen 2022-10-27 459 } 2045a3b8911b6e Feiyang Chen 2022-10-27 460 } else if (vmemmap_check_pmd(pmd, node, addr, next)) 2045a3b8911b6e Feiyang Chen 2022-10-27 461 continue; 2045a3b8911b6e Feiyang Chen 2022-10-27 462 if (vmemmap_populate_basepages(addr, next, node, altmap)) 2045a3b8911b6e Feiyang Chen 2022-10-27 463 return -ENOMEM; 2045a3b8911b6e Feiyang Chen 2022-10-27 464 } 2045a3b8911b6e Feiyang Chen 2022-10-27 465 return 0; 2045a3b8911b6e Feiyang Chen 2022-10-27 466 } 2045a3b8911b6e Feiyang Chen 2022-10-27 467 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki