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From: kbuild test robot <lkp@intel.com>
To: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: linux-kernel@vger.kernel.org, Paul Mackerras <paulus@samba.org>,
	kbuild-all@01.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v8 07/20] powerpc/mm: add helpers to get/set mm.context->pte_frag
Date: Fri, 30 Nov 2018 02:05:21 +0800	[thread overview]
Message-ID: <201811300217.jzbyDvWu%fengguang.wu@intel.com> (raw)
In-Reply-To: <38d940b8c582aa41f4c16975e9c1eda7baeb6a5d.1543478200.git.christophe.leroy@c-s.fr>

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Hi Christophe,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on powerpc/next]
[also build test WARNING on v4.20-rc4]
[cannot apply to next-20181129]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Christophe-Leroy/powerpc-book3s32-Remove-CONFIG_BOOKE-dependent-code/20181129-210058
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-allmodconfig (attached as .config)
compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=powerpc 

All warnings (new ones prefixed by >>):

   In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24:0,
                    from arch/powerpc/include/asm/book3s/64/mmu.h:39,
                    from arch/powerpc/include/asm/mmu.h:328,
                    from arch/powerpc/include/asm/lppaca.h:36,
                    from arch/powerpc/include/asm/paca.h:21,
                    from arch/powerpc/include/asm/hw_irq.h:64,
                    from arch/powerpc/include/asm/irqflags.h:12,
                    from include/linux/irqflags.h:16,
                    from include/linux/spinlock.h:54,
                    from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:6,
                    from include/linux/slab.h:15,
                    from drivers/usb/gadget/function/f_acm.c:14:
>> arch/powerpc/include/asm/book3s/64/pgtable.h:219:21: warning: "__pte_frag_nr" is not defined, evaluates to 0 [-Wundef]
    #define PTE_FRAG_NR __pte_frag_nr
                        ^
>> arch/powerpc/include/asm/pgtable.h:123:5: note: in expansion of macro 'PTE_FRAG_NR'
    #if PTE_FRAG_NR != 1
        ^~~~~~~~~~~
--
   In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24:0,
                    from arch/powerpc/include/asm/book3s/64/mmu.h:39,
                    from arch/powerpc/include/asm/mmu.h:328,
                    from arch/powerpc/include/asm/lppaca.h:36,
                    from arch/powerpc/include/asm/paca.h:21,
                    from arch/powerpc/include/asm/current.h:16,
                    from include/linux/sched.h:12,
                    from drivers/usb/gadget/function/u_serial.c:18:
>> arch/powerpc/include/asm/book3s/64/pgtable.h:219:21: warning: "__pte_frag_nr" is not defined, evaluates to 0 [-Wundef]
    #define PTE_FRAG_NR __pte_frag_nr
                        ^
>> arch/powerpc/include/asm/pgtable.h:123:5: note: in expansion of macro 'PTE_FRAG_NR'
    #if PTE_FRAG_NR != 1
        ^~~~~~~~~~~
   In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24:0,
                    from arch/powerpc/include/asm/book3s/64/mmu.h:39,
                    from arch/powerpc/include/asm/mmu.h:328,
                    from arch/powerpc/include/asm/lppaca.h:36,
                    from arch/powerpc/include/asm/paca.h:21,
                    from arch/powerpc/include/asm/current.h:16,
                    from include/linux/sched.h:12,
                    from drivers/usb/gadget/function/u_serial.c:18:
>> arch/powerpc/include/asm/book3s/64/pgtable.h:219:21: warning: "__pte_frag_nr" is not defined, evaluates to 0 [-Wundef]
    #define PTE_FRAG_NR __pte_frag_nr
                        ^
>> arch/powerpc/include/asm/pgtable.h:123:5: note: in expansion of macro 'PTE_FRAG_NR'
    #if PTE_FRAG_NR != 1
        ^~~~~~~~~~~
--
   In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24:0,
                    from arch/powerpc/include/asm/book3s/64/mmu.h:39,
                    from arch/powerpc/include/asm/mmu.h:328,
                    from arch/powerpc/include/asm/lppaca.h:36,
                    from arch/powerpc/include/asm/paca.h:21,
                    from arch/powerpc/include/asm/current.h:16,
                    from include/linux/sched.h:12,
                    from drivers/staging/rtlwifi/rtl8822be/../wifi.h:20,
                    from drivers/staging/rtlwifi/rtl8822be/trx.c:15:
>> arch/powerpc/include/asm/book3s/64/pgtable.h:219:21: warning: "__pte_frag_nr" is not defined, evaluates to 0 [-Wundef]
    #define PTE_FRAG_NR __pte_frag_nr
                        ^
>> arch/powerpc/include/asm/pgtable.h:123:5: note: in expansion of macro 'PTE_FRAG_NR'
    #if PTE_FRAG_NR != 1
        ^~~~~~~~~~~
   In file included from drivers/staging/rtlwifi/rtl8822be/trx.c:26:0:
   include/linux/vermagic.h:29:10: fatal error: generated/randomize_layout_hash.h: No such file or directory
    #include <generated/randomize_layout_hash.h>
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   compilation terminated.
--
   In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24:0,
                    from arch/powerpc/include/asm/book3s/64/mmu.h:39,
                    from arch/powerpc/include/asm/mmu.h:328,
                    from arch/powerpc/include/asm/lppaca.h:36,
                    from arch/powerpc/include/asm/paca.h:21,
                    from arch/powerpc/include/asm/smp.h:28,
                    from include/linux/smp.h:68,
                    from include/linux/percpu.h:7,
                    from arch/powerpc/include/asm/time.h:18,
                    from arch/powerpc/include/asm/delay.h:6,
                    from include/linux/delay.h:26,
                    from sound/aoa/codecs/onyx.c:34:
>> arch/powerpc/include/asm/book3s/64/pgtable.h:219:21: warning: "__pte_frag_nr" is not defined, evaluates to 0 [-Wundef]
    #define PTE_FRAG_NR __pte_frag_nr
                        ^
>> arch/powerpc/include/asm/pgtable.h:123:5: note: in expansion of macro 'PTE_FRAG_NR'
    #if PTE_FRAG_NR != 1
        ^~~~~~~~~~~
   sound/aoa/codecs/onyx.c: In function 'onyx_snd_single_bit_get':
   sound/aoa/codecs/onyx.c:380:37: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized]
     ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity;
                                        ^~~~~~~~~~~~
--
   In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24:0,
                    from arch/powerpc/include/asm/book3s/64/mmu.h:39,
                    from arch/powerpc/include/asm/mmu.h:328,
                    from arch/powerpc/include/asm/lppaca.h:36,
                    from arch/powerpc/include/asm/paca.h:21,
                    from arch/powerpc/include/asm/smp.h:28,
                    from include/linux/smp.h:68,
                    from include/linux/percpu.h:7,
                    from arch/powerpc/include/asm/time.h:18,
                    from arch/powerpc/include/asm/delay.h:6,
                    from include/linux/delay.h:26,
                    from drivers/scsi/esas2r/esas2r.h:45,
                    from drivers/scsi/esas2r/esas2r_ioctl.c:44:
>> arch/powerpc/include/asm/book3s/64/pgtable.h:219:21: warning: "__pte_frag_nr" is not defined, evaluates to 0 [-Wundef]
    #define PTE_FRAG_NR __pte_frag_nr
                        ^
>> arch/powerpc/include/asm/pgtable.h:123:5: note: in expansion of macro 'PTE_FRAG_NR'
    #if PTE_FRAG_NR != 1
        ^~~~~~~~~~~
   drivers/scsi/esas2r/esas2r_ioctl.c: In function 'esas2r_write_vda':
   drivers/scsi/esas2r/esas2r_ioctl.c:1910:19: warning: 'dma_addr' may be used uninitialized in this function [-Wmaybe-uninitialized]
      a->ppvda_buffer = dma_addr;
      ~~~~~~~~~~~~~~~~^~~~~~~~~~

vim +/__pte_frag_nr +219 arch/powerpc/include/asm/book3s/64/pgtable.h

5ed7ecd0 Aneesh Kumar K.V 2016-04-29  217  
5ed7ecd0 Aneesh Kumar K.V 2016-04-29  218  extern unsigned long __pte_frag_nr;
5ed7ecd0 Aneesh Kumar K.V 2016-04-29 @219  #define PTE_FRAG_NR __pte_frag_nr
5ed7ecd0 Aneesh Kumar K.V 2016-04-29  220  extern unsigned long __pte_frag_size_shift;
5ed7ecd0 Aneesh Kumar K.V 2016-04-29  221  #define PTE_FRAG_SIZE_SHIFT __pte_frag_size_shift
5ed7ecd0 Aneesh Kumar K.V 2016-04-29  222  #define PTE_FRAG_SIZE (1UL << PTE_FRAG_SIZE_SHIFT)
dd1842a2 Aneesh Kumar K.V 2016-04-29  223  

:::::: The code at line 219 was first introduced by commit
:::::: 5ed7ecd08a0807d6d616c3d958402f9c723bb048 powerpc/mm: pte_frag abstraction

:::::: TO: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
:::::: CC: Michael Ellerman <mpe@ellerman.id.au>

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

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  reply	other threads:[~2018-11-29 18:07 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-29  8:10 [PATCH v8 00/20] Implement use of HW assistance on TLB table walk on 8xx Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 01/20] powerpc/book3s32: Remove CONFIG_BOOKE dependent code Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 02/20] powerpc/8xx: Remove PTE_ATOMIC_UPDATES Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 03/20] powerpc/mm: Move pte_fragment_alloc() to a common location Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 04/20] powerpc/mm: Avoid useless lock with single page fragments Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 05/20] powerpc/mm: move platform specific mmu-xxx.h in platform directories Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 06/20] powerpc/mm: Move pgtable_t into platform headers Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 07/20] powerpc/mm: add helpers to get/set mm.context->pte_frag Christophe Leroy
2018-11-29 18:05   ` kbuild test robot [this message]
2018-11-29 18:26   ` kbuild test robot
2018-11-29  8:10 ` [PATCH v8 08/20] powerpc/mm: Extend pte_fragment functionality to PPC32 Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 09/20] powerpc/mm: enable the use of page table cache of order 0 Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 10/20] powerpc/mm: replace hugetlb_cache by PGT_CACHE(PTE_T_ORDER) Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 11/20] powerpc/mm: fix a warning when a cache is common to PGD and hugepages Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 12/20] powerpc/mm: remove unnecessary test in pgtable_cache_init() Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 13/20] powerpc/8xx: Move SW perf counters in first 32kb of memory Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 14/20] powerpc/8xx: Temporarily disable 16k pages and hugepages Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 15/20] powerpc/8xx: Use hardware assistance in TLB handlers Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 16/20] powerpc/8xx: Enable 8M hugepage support with HW assistance Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 17/20] powerpc/8xx: Enable 512k " Christophe Leroy
2018-11-29 19:07   ` kbuild test robot
2018-11-29  8:10 ` [PATCH v8 18/20] powerpc/8xx: reintroduce 16K pages " Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 19/20] powerpc/8xx: don't use r12/SPRN_SPRG_SCRATCH2 in TLB Miss handlers Christophe Leroy
2018-11-29  8:10 ` [PATCH v8 20/20] powerpc/8xx: regroup TLB handler routines Christophe Leroy

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