Re: [RFC PATCH 14/37] mm: add pte_map_lock() and pte_spinlock()

From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: Re: [RFC PATCH 14/37] mm: add pte_map_lock() and pte_spinlock()
Date: Wed, 07 Apr 2021 12:21:38 +0800	[thread overview]
Message-ID: <202104071245.NVYoVpc7-lkp@intel.com> (raw)
In-Reply-To: <20210407014502.24091-15-michel@lespinasse.org>

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Hi Michel,

[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on tip/x86/mm]
[also build test ERROR on ext4/dev arm64/for-next/core linus/master v5.12-rc6]
[cannot apply to hnaz-linux-mm/master next-20210406]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Michel-Lespinasse/Speculative-page-faults/20210407-095517
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git a500fc918f7b8dc3dff2e6c74f3e73e856c18248
config: arm-randconfig-r023-20210407 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project c060945b23a1c54d4b2a053ff4b093a2277b303d)
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 arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/0day-ci/linux/commit/35a22aad413d0acec9b01b29df4eda6b84059ba5
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Michel-Lespinasse/Speculative-page-faults/20210407-095517
        git checkout 35a22aad413d0acec9b01b29df4eda6b84059ba5
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All error/warnings (new ones prefixed by >>):

   In file included from arch/arm/kernel/asm-offsets.c:12:
>> include/linux/mm.h:3173:13: error: implicit declaration of function 'pte_offset_map' [-Werror,-Wimplicit-function-declaration]
           vmf->pte = pte_offset_map_lock(vmf->vma->vm_mm, vmf->pmd, vmf->address,
                      ^
   include/linux/mm.h:2205:17: note: expanded from macro 'pte_offset_map_lock'
           pte_t *__pte = pte_offset_map(pmd, address);    \
                          ^
>> include/linux/mm.h:3173:13: warning: incompatible integer to pointer conversion initializing 'pte_t *' (aka 'unsigned long *') with an expression of type 'int' [-Wint-conversion]
           vmf->pte = pte_offset_map_lock(vmf->vma->vm_mm, vmf->pmd, vmf->address,
                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mm.h:2205:9: note: expanded from macro 'pte_offset_map_lock'
           pte_t *__pte = pte_offset_map(pmd, address);    \
                  ^       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   1 warning and 1 error generated.
--
   In file included from arch/arm/kernel/asm-offsets.c:12:
>> include/linux/mm.h:3173:13: error: implicit declaration of function 'pte_offset_map' [-Werror,-Wimplicit-function-declaration]
           vmf->pte = pte_offset_map_lock(vmf->vma->vm_mm, vmf->pmd, vmf->address,
                      ^
   include/linux/mm.h:2205:17: note: expanded from macro 'pte_offset_map_lock'
           pte_t *__pte = pte_offset_map(pmd, address);    \
                          ^
>> include/linux/mm.h:3173:13: warning: incompatible integer to pointer conversion initializing 'pte_t *' (aka 'unsigned long *') with an expression of type 'int' [-Wint-conversion]
           vmf->pte = pte_offset_map_lock(vmf->vma->vm_mm, vmf->pmd, vmf->address,
                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mm.h:2205:9: note: expanded from macro 'pte_offset_map_lock'
           pte_t *__pte = pte_offset_map(pmd, address);    \
                  ^       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   1 warning and 1 error generated.
   make[2]: *** [scripts/Makefile.build:116: arch/arm/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1233: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:215: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.

vim +/pte_offset_map +3173 include/linux/mm.h

  3170	
  3171	static inline bool pte_map_lock(struct vm_fault *vmf)
  3172	{
> 3173		vmf->pte = pte_offset_map_lock(vmf->vma->vm_mm, vmf->pmd, vmf->address,
  3174					       &vmf->ptl);
  3175		return true;
  3176	}
  3177	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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