From: Anshuman Khandual <anshuman.khandual@arm.com>
To: kbuild test robot <lkp@intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
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"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH 1/1] mm/pgtable/debug: Add test validating architecture page table helpers
Date: Wed, 4 Sep 2019 11:44:25 +0530 [thread overview]
Message-ID: <4dc9698f-dff4-b916-a83e-dc932c8087c0@arm.com> (raw)
In-Reply-To: <201909031912.htvWy2Bu%lkp@intel.com>
On 09/03/2019 04:43 PM, kbuild test robot wrote:
> Hi Anshuman,
>
> Thank you for the patch! Yet something to improve:
>
> [auto build test ERROR on linus/master]
> [cannot apply to v5.3-rc7 next-20190902]
> [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/Anshuman-Khandual/mm-debug-Add-tests-for-architecture-exported-page-table-helpers/20190903-162959
> config: m68k-allmodconfig (attached as .config)
> compiler: m68k-linux-gcc (GCC) 7.4.0
> 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=7.4.0 make.cross ARCH=m68k
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@intel.com>
>
> All error/warnings (new ones prefixed by >>):
>
> In file included from arch/m68k/include/asm/bug.h:32:0,
> from include/linux/bug.h:5,
> from include/linux/thread_info.h:12,
> from include/asm-generic/preempt.h:5,
> from ./arch/m68k/include/generated/asm/preempt.h:1,
> from include/linux/preempt.h:78,
> from arch/m68k/include/asm/irqflags.h:6,
> from include/linux/irqflags.h:16,
> from arch/m68k/include/asm/atomic.h:6,
> from include/linux/atomic.h:7,
> from include/linux/mm_types_task.h:13,
> from include/linux/mm_types.h:5,
> from include/linux/hugetlb.h:5,
> from mm/arch_pgtable_test.c:14:
> mm/arch_pgtable_test.c: In function 'pmd_clear_tests':
>>> arch/m68k/include/asm/page.h:31:22: error: lvalue required as unary '&' operand
> #define pmd_val(x) ((&x)->pmd[0])
> ^
> include/asm-generic/bug.h:124:25: note: in definition of macro 'WARN_ON'
> int __ret_warn_on = !!(condition); \
> ^~~~~~~~~
>>> arch/m68k/include/asm/motorola_pgtable.h:138:26: note: in expansion of macro 'pmd_val'
> #define pmd_none(pmd) (!pmd_val(pmd))
> ^~~~~~~
>>> mm/arch_pgtable_test.c:233:11: note: in expansion of macro 'pmd_none'
> WARN_ON(!pmd_none(READ_ONCE(*pmdp)));
> ^~~~~~~~
> mm/arch_pgtable_test.c: In function 'pmd_populate_tests':
>>> arch/m68k/include/asm/page.h:31:22: error: lvalue required as unary '&' operand
> #define pmd_val(x) ((&x)->pmd[0])
Storing READ_ONCE(*pmdp) in a local pmd_t variable first solves the problem.
next prev parent reply other threads:[~2019-09-04 6:14 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-03 8:01 [PATCH 0/1] mm/debug: Add tests for architecture exported page table helpers Anshuman Khandual
2019-09-03 8:01 ` [PATCH 1/1] mm/pgtable/debug: Add test validating architecture " Anshuman Khandual
2019-09-03 11:13 ` kbuild test robot
2019-09-04 6:14 ` Anshuman Khandual [this message]
2019-09-04 14:19 ` Kirill A. Shutemov
2019-09-05 8:18 ` Anshuman Khandual
2019-09-05 8:59 ` Kirill A. Shutemov
2019-09-06 7:03 ` Anshuman Khandual
2019-09-04 20:16 ` Gerald Schaefer
2019-09-05 9:18 ` Anshuman Khandual
2019-09-05 17:06 ` Gerald Schaefer
2019-09-06 6:28 ` Anshuman Khandual
2019-09-06 19:03 ` Gerald Schaefer
2019-09-09 6:26 ` Anshuman Khandual
2019-09-09 15:13 ` Kirill A. Shutemov
2019-09-10 3:56 ` Anshuman Khandual
2019-09-10 4:45 ` Christophe Leroy
2019-09-10 5:43 ` Anshuman Khandual
2019-09-09 16:51 ` Gerald Schaefer
2019-09-04 23:14 ` Dave Hansen
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