From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============7755519585613722667==" MIME-Version: 1.0 From: kernel test robot To: kbuild-all@lists.01.org Subject: arch/powerpc/mm/ptdump/hashpagetable.c:264:29: sparse: sparse: restricted __be64 degrades to integer Date: Sun, 30 Jan 2022 09:31:04 +0800 Message-ID: <202201300921.27SsRpgG-lkp@intel.com> List-Id: --===============7755519585613722667== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Hi Christophe, First bad commit (maybe !=3D root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git = master head: f8c7e4ede46fe63ff10000669652648aab09d112 commit: e084728393a58e7fdafeee2e6b20e0faff09b557 powerpc/ptdump: Convert po= werpc to GENERIC_PTDUMP date: 5 months ago config: powerpc64-randconfig-s031-20220130 (https://download.01.org/0day-ci= /archive/20220130/202201300921.27SsRpgG-lkp(a)intel.com/config) compiler: powerpc64-linux-gcc (GCC) 11.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/= make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.gi= t/commit/?id=3De084728393a58e7fdafeee2e6b20e0faff09b557 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/gi= t/torvalds/linux.git git fetch --no-tags linus master git checkout e084728393a58e7fdafeee2e6b20e0faff09b557 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=3D$HOME/0day COMPILER=3Dgcc-11.2.0 make.cross= C=3D1 CF=3D'-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=3Dbuild_dir ARCH=3Dp= owerpc SHELL=3D/bin/bash arch/powerpc/mm/ptdump/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) >> arch/powerpc/mm/ptdump/hashpagetable.c:264:29: sparse: sparse: restricte= d __be64 degrades to integer arch/powerpc/mm/ptdump/hashpagetable.c:265:49: sparse: sparse: restricte= d __be64 degrades to integer >> arch/powerpc/mm/ptdump/hashpagetable.c:267:36: sparse: sparse: incorrect= type in assignment (different base types) @@ expected unsigned long lo= ng [usertype] @@ got restricted __be64 [usertype] v @@ arch/powerpc/mm/ptdump/hashpagetable.c:267:36: sparse: expected unsi= gned long long [usertype] arch/powerpc/mm/ptdump/hashpagetable.c:267:36: sparse: got restricte= d __be64 [usertype] v >> arch/powerpc/mm/ptdump/hashpagetable.c:268:36: sparse: sparse: incorrect= type in assignment (different base types) @@ expected unsigned long lo= ng [usertype] @@ got restricted __be64 [usertype] r @@ arch/powerpc/mm/ptdump/hashpagetable.c:268:36: sparse: expected unsi= gned long long [usertype] arch/powerpc/mm/ptdump/hashpagetable.c:268:36: sparse: got restricte= d __be64 [usertype] r vim +264 arch/powerpc/mm/ptdump/hashpagetable.c 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 238 = 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 239 static int pseries_find(unsigned long ea, int psize, bool prim= ary, u64 *v, u64 *r) 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 240 { 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 241 struct hash_pte ptes[4]; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 242 unsigned long vsid, vpn, hash, hpte_group, want_v; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 243 int i, j, ssize =3D mmu_kernel_ssize; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 244 long lpar_rc =3D 0; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 245 unsigned long shift =3D mmu_psize_defs[psize].shift; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 246 = 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 247 /* calculate hash */ 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 248 vsid =3D get_kernel_vsid(ea, ssize); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 249 vpn =3D hpt_vpn(ea, vsid, ssize); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 250 hash =3D hpt_hash(vpn, shift, ssize); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 251 want_v =3D hpte_encode_avpn(vpn, psize, ssize); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 252 = 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 253 /* to check in the secondary hash table, we invert the hash */ 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 254 if (!primary) 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 255 hash =3D ~hash; 1531cff44b5bb3 arch/powerpc/mm/dump_hashpagetable.c Aneesh Kumar K.V 2018= -06-29 256 hpte_group =3D (hash & htab_hash_mask) * HPTES_PER_GROUP; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 257 /* see if we can find an entry in the hpte with this hash */ 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 258 for (i =3D 0; i < HPTES_PER_GROUP; i +=3D 4, hpte_group +=3D = 4) { 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 259 lpar_rc =3D plpar_pte_read_4(0, hpte_group, (void *)ptes); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 260 = 7c466b0807960e arch/powerpc/mm/ptdump/hashpagetable.c Christophe Leroy 2020= -06-15 261 if (lpar_rc) 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 262 continue; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 263 for (j =3D 0; j < 4; j++) { 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 @264 if (HPTE_V_COMPARE(ptes[j].v, want_v) && 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 265 (ptes[j].v & HPTE_V_VALID)) { 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 266 /* HPTE matches */ 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 @267 *v =3D ptes[j].v; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 @268 *r =3D ptes[j].r; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 269 return 0; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 270 } 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 271 } 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 272 } 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 273 return -1; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 274 } 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016= -05-27 275 = :::::: The code@line 264 was first introduced by commit :::::: 1515ab932156257afd8a5864506dab80f63ff38b powerpc/mm: Dump hash table :::::: TO: Rashmica Gupta :::::: CC: Michael Ellerman --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org --===============7755519585613722667==-- 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 0F479C433EF for ; Sun, 30 Jan 2022 01:31:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353615AbiA3BbQ (ORCPT ); Sat, 29 Jan 2022 20:31:16 -0500 Received: from mga14.intel.com ([192.55.52.115]:26984 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238167AbiA3BbO (ORCPT ); Sat, 29 Jan 2022 20:31:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1643506274; x=1675042274; h=date:from:to:cc:subject:message-id:mime-version; bh=8tM/X9IH/R+52BlqmB7ETPF5JGQJ6I9d7grUF3edElA=; b=hGnMvqYFTny7b4cAGJjyOA99m6nZpEzEE9JQ7sazpW4uGH6pVz7xGSaM 0rxHmoBYkHUaZovIQzu3V1xsQngaQXJwFfdtcDBos+CqosO1TAtnxpPiT daXjjeCBS7IPVOf+/bh6/uVS+oh/HjW9Mch5tEPC4JdYf4HDAuQDSkNsu s4vSJ9e1c+Sex4JYr6qU1RClbpai4PAXmjSTs9W2lfsHNMdICT7Iye4Ac RfmG01YkUHlE46YKkb1cej7th7RyHSamN+jw+wJy4Rf6s3wh6rypdVP7y WYN3pukuv9ty5pXGRwLIlijSDkAiVmy2EozD9ShXT85XrtepgWhHnKo88 Q==; X-IronPort-AV: E=McAfee;i="6200,9189,10242"; a="247528847" X-IronPort-AV: E=Sophos;i="5.88,327,1635231600"; d="scan'208";a="247528847" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jan 2022 17:31:14 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,327,1635231600"; d="scan'208";a="533854798" Received: from lkp-server01.sh.intel.com (HELO 276f1b88eecb) ([10.239.97.150]) by fmsmga007.fm.intel.com with ESMTP; 29 Jan 2022 17:31:12 -0800 Received: from kbuild by 276f1b88eecb with local (Exim 4.92) (envelope-from ) id 1nDz3g-000Pt7-3e; Sun, 30 Jan 2022 01:31:12 +0000 Date: Sun, 30 Jan 2022 09:31:04 +0800 From: kernel test robot To: Christophe Leroy Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Michael Ellerman Subject: arch/powerpc/mm/ptdump/hashpagetable.c:264:29: sparse: sparse: restricted __be64 degrades to integer Message-ID: <202201300921.27SsRpgG-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 Hi Christophe, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f8c7e4ede46fe63ff10000669652648aab09d112 commit: e084728393a58e7fdafeee2e6b20e0faff09b557 powerpc/ptdump: Convert powerpc to GENERIC_PTDUMP date: 5 months ago config: powerpc64-randconfig-s031-20220130 (https://download.01.org/0day-ci/archive/20220130/202201300921.27SsRpgG-lkp@intel.com/config) compiler: powerpc64-linux-gcc (GCC) 11.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e084728393a58e7fdafeee2e6b20e0faff09b557 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout e084728393a58e7fdafeee2e6b20e0faff09b557 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/mm/ptdump/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) >> arch/powerpc/mm/ptdump/hashpagetable.c:264:29: sparse: sparse: restricted __be64 degrades to integer arch/powerpc/mm/ptdump/hashpagetable.c:265:49: sparse: sparse: restricted __be64 degrades to integer >> arch/powerpc/mm/ptdump/hashpagetable.c:267:36: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] @@ got restricted __be64 [usertype] v @@ arch/powerpc/mm/ptdump/hashpagetable.c:267:36: sparse: expected unsigned long long [usertype] arch/powerpc/mm/ptdump/hashpagetable.c:267:36: sparse: got restricted __be64 [usertype] v >> arch/powerpc/mm/ptdump/hashpagetable.c:268:36: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] @@ got restricted __be64 [usertype] r @@ arch/powerpc/mm/ptdump/hashpagetable.c:268:36: sparse: expected unsigned long long [usertype] arch/powerpc/mm/ptdump/hashpagetable.c:268:36: sparse: got restricted __be64 [usertype] r vim +264 arch/powerpc/mm/ptdump/hashpagetable.c 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 238 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 239 static int pseries_find(unsigned long ea, int psize, bool primary, u64 *v, u64 *r) 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 240 { 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 241 struct hash_pte ptes[4]; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 242 unsigned long vsid, vpn, hash, hpte_group, want_v; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 243 int i, j, ssize = mmu_kernel_ssize; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 244 long lpar_rc = 0; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 245 unsigned long shift = mmu_psize_defs[psize].shift; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 246 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 247 /* calculate hash */ 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 248 vsid = get_kernel_vsid(ea, ssize); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 249 vpn = hpt_vpn(ea, vsid, ssize); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 250 hash = hpt_hash(vpn, shift, ssize); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 251 want_v = hpte_encode_avpn(vpn, psize, ssize); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 252 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 253 /* to check in the secondary hash table, we invert the hash */ 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 254 if (!primary) 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 255 hash = ~hash; 1531cff44b5bb3 arch/powerpc/mm/dump_hashpagetable.c Aneesh Kumar K.V 2018-06-29 256 hpte_group = (hash & htab_hash_mask) * HPTES_PER_GROUP; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 257 /* see if we can find an entry in the hpte with this hash */ 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 258 for (i = 0; i < HPTES_PER_GROUP; i += 4, hpte_group += 4) { 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 259 lpar_rc = plpar_pte_read_4(0, hpte_group, (void *)ptes); 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 260 7c466b0807960e arch/powerpc/mm/ptdump/hashpagetable.c Christophe Leroy 2020-06-15 261 if (lpar_rc) 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 262 continue; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 263 for (j = 0; j < 4; j++) { 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 @264 if (HPTE_V_COMPARE(ptes[j].v, want_v) && 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 265 (ptes[j].v & HPTE_V_VALID)) { 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 266 /* HPTE matches */ 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 @267 *v = ptes[j].v; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 @268 *r = ptes[j].r; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 269 return 0; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 270 } 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 271 } 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 272 } 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 273 return -1; 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 274 } 1515ab93215625 arch/powerpc/mm/dump_hashpagetable.c Rashmica Gupta 2016-05-27 275 :::::: The code at line 264 was first introduced by commit :::::: 1515ab932156257afd8a5864506dab80f63ff38b powerpc/mm: Dump hash table :::::: TO: Rashmica Gupta :::::: CC: Michael Ellerman --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org