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Date: Wed, 31 Aug 2016 06:51:57 +0800
From: kbuild test robot <lkp@intel.com>
To: Mike Kravetz <mike.kravetz@oracle.com>
Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org,
        sparclinux@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
        Andrew Morton <akpm@linux-foundation.org>,
        "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        Nitin Gupta <nitin.m.gupta@oracle.com>,
        Mike Kravetz <mike.kravetz@oracle.com>
Subject: Re: [PATCH] sparc64 mm: Fix more TSB sizing issues
Message-ID: <201608310635.bSVf0cLr%fengguang.wu@intel.com>
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Hi Mike,

[auto build test ERROR on sparc/master]
[also build test ERROR on v4.8-rc4 next-20160825]
[cannot apply to sparc-next/master]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    https://github.com/0day-ci/linux/commits/Mike-Kravetz/sparc64-mm-Fix-more-TSB-sizing-issues/20160831-054025
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc.git master
config: sparc64-allnoconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 5.4.0-6) 5.4.0 20160609
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=sparc64 

All errors (new ones prefixed by >>):

   arch/sparc/mm/tsb.c: In function 'init_new_context':
>> arch/sparc/mm/tsb.c:504:4: error: 'saved_thp_pte_count' undeclared (first use in this function)
       saved_thp_pte_count * (HPAGE_SIZE / PAGE_SIZE));
       ^
   arch/sparc/mm/tsb.c:504:4: note: each undeclared identifier is reported only once for each function it appears in
>> arch/sparc/mm/tsb.c:504:27: error: 'HPAGE_SIZE' undeclared (first use in this function)
       saved_thp_pte_count * (HPAGE_SIZE / PAGE_SIZE));
                              ^

vim +/saved_thp_pte_count +504 arch/sparc/mm/tsb.c

   498			mm->context.tsb_block[i].tsb = NULL;
   499	
   500		/* If this is fork, inherit the parent's TSB size.  We would
   501		 * grow it to that size on the first page fault anyways.
   502		 */
   503		tsb_grow(mm, MM_TSB_BASE, get_mm_rss(mm) -
 > 504			 saved_thp_pte_count * (HPAGE_SIZE / PAGE_SIZE));
   505	
   506	#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
   507		if (unlikely(saved_hugetlb_pte_count + saved_thp_pte_count))

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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