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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 049C9C433F5 for ; Fri, 14 Jan 2022 00:57:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238556AbiANA5V (ORCPT ); Thu, 13 Jan 2022 19:57:21 -0500 Received: from mga03.intel.com ([134.134.136.65]:64084 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230040AbiANA5U (ORCPT ); Thu, 13 Jan 2022 19:57:20 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1642121840; x=1673657840; h=date:from:to:cc:subject:message-id:mime-version; bh=5zlHbZlCHZs666H8cOGG7rweh70YY57ByrZiK4jMcZk=; b=kCqI7uP2B/P5tEOwcoUBz9uaw7aL+luWA/FOWjtiu+rVE1Ayg1sNseBZ o6A6jXKQPezreQLoyGHC/bhaKpI4Pcu19ih2p7JztfNwdwD4CE6d0PQHE tsFfn3XwT4SrFT+/rzfsnIsOPtwYaC33X/qXrx/B3+Rx4U6EPRVP5gNuU pFqUuucgf3yLONUQZAUKXHyhZvVX06f4YqJ7GpJJBQE/JAC9dluRNHGm+ vQi8gPWM+Z/FlORzN/PDgYlJCiUMmr23FvAyfjJJ2xsEDirxTtFdDS9Cx 9vKuEtDkPiq/mypeVEYRK772R6LiePVK0bSzEtX+dmoPEnbCrB6DKqjDw A==; X-IronPort-AV: E=McAfee;i="6200,9189,10226"; a="244107764" X-IronPort-AV: E=Sophos;i="5.88,287,1635231600"; d="scan'208";a="244107764" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jan 2022 16:57:17 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,287,1635231600"; d="scan'208";a="475566017" Received: from lkp-server01.sh.intel.com (HELO 276f1b88eecb) ([10.239.97.150]) by orsmga006.jf.intel.com with ESMTP; 13 Jan 2022 16:57:16 -0800 Received: from kbuild by 276f1b88eecb with local (Exim 4.92) (envelope-from ) id 1n8Au3-0007qt-Gg; Fri, 14 Jan 2022 00:57:15 +0000 Date: Fri, 14 Jan 2022 08:56:52 +0800 From: kernel test robot To: Chao Gao Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: [intel-tdx:tdx/guest-rebased 105/133] kernel/dma/swiotlb.c:320:16: error: implicit declaration of function 'kzalloc' Message-ID: <202201140844.HLn72YTB-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://github.com/intel/tdx.git tdx/guest-rebased head: e3995864d37c56f431c93fc3dc454d9c65f5e9ea commit: 64f46677f0bd4db290a0c6be857c6fd8db39324b [105/133] swiotlb: use bitmap to track free slots config: s390-randconfig-r033-20220113 (https://download.01.org/0day-ci/archive/20220114/202201140844.HLn72YTB-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d1021978b8e7e35dcc30201ca1731d64b5a602a8) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://github.com/intel/tdx/commit/64f46677f0bd4db290a0c6be857c6fd8db39324b git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx tdx/guest-rebased git checkout 64f46677f0bd4db290a0c6be857c6fd8db39324b # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): In file included from kernel/dma/swiotlb.c:24: In file included from include/linux/dma-direct.h:9: In file included from include/linux/dma-mapping.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:36:59: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) ^ In file included from kernel/dma/swiotlb.c:24: In file included from include/linux/dma-direct.h:9: In file included from include/linux/dma-mapping.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) ^ In file included from kernel/dma/swiotlb.c:24: In file included from include/linux/dma-direct.h:9: In file included from include/linux/dma-mapping.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ >> kernel/dma/swiotlb.c:320:16: error: implicit declaration of function 'kzalloc' [-Werror,-Wimplicit-function-declaration] mem->bitmap = kzalloc(DIV_ROUND_UP(nslabs, BITS_PER_BYTE), GFP_KERNEL); ^ kernel/dma/swiotlb.c:320:16: note: did you mean 'vzalloc'? include/linux/vmalloc.h:140:14: note: 'vzalloc' declared here extern void *vzalloc(unsigned long size) __alloc_size(1); ^ kernel/dma/swiotlb.c:320:14: warning: incompatible integer to pointer conversion assigning to 'unsigned long *' from 'int' [-Wint-conversion] mem->bitmap = kzalloc(DIV_ROUND_UP(nslabs, BITS_PER_BYTE), GFP_KERNEL); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> kernel/dma/swiotlb.c:324:3: error: implicit declaration of function 'kfree' [-Werror,-Wimplicit-function-declaration] kfree(mem->bitmap); ^ kernel/dma/swiotlb.c:324:3: note: did you mean 'vfree'? include/linux/vmalloc.h:155:13: note: 'vfree' declared here extern void vfree(const void *addr); ^ 13 warnings and 2 errors generated. vim +/kzalloc +320 kernel/dma/swiotlb.c 306 307 int 308 swiotlb_late_init_with_tbl(char *tlb, unsigned long nslabs) 309 { 310 struct io_tlb_mem *mem = &io_tlb_default_mem; 311 unsigned long bytes = nslabs << IO_TLB_SHIFT; 312 313 if (swiotlb_force == SWIOTLB_NO_FORCE) 314 return 0; 315 316 /* protect against double initialization */ 317 if (WARN_ON_ONCE(mem->nslabs)) 318 return -ENOMEM; 319 > 320 mem->bitmap = kzalloc(DIV_ROUND_UP(nslabs, BITS_PER_BYTE), GFP_KERNEL); 321 mem->slots = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 322 get_order(array_size(sizeof(*mem->slots), nslabs))); 323 if (!mem->slots || !mem->bitmap) { > 324 kfree(mem->bitmap); 325 kfree(mem->slots); 326 return -ENOMEM; 327 } 328 329 set_memory_decrypted((unsigned long)tlb, bytes >> PAGE_SHIFT); 330 swiotlb_init_io_tlb_mem(mem, virt_to_phys(tlb), nslabs, true); 331 332 swiotlb_print_info(); 333 swiotlb_set_max_segment(mem->nslabs << IO_TLB_SHIFT); 334 return 0; 335 } 336 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org