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* arch/powerpc/kvm/../../../virt/kvm/vfio.c:89:7: warning: attribute declaration must precede definition
@ 2023-09-03  0:00 kernel test robot
  0 siblings, 0 replies; 4+ messages in thread
From: kernel test robot @ 2023-09-03  0:00 UTC (permalink / raw)
  To: Yi Liu; +Cc: llvm, oe-kbuild-all, linux-kernel, Alex Williamson,
	Jason Gunthorpe

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   92901222f83d988617aee37680cb29e1a743b5e4
commit: c1cce6d079b875396c9a7c6838fc5b024758e540 vfio: Compile vfio_group infrastructure optionally
date:   6 weeks ago
config: powerpc64-randconfig-r005-20230903 (https://download.01.org/0day-ci/archive/20230903/202309030741.82aLACDG-lkp@intel.com/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230903/202309030741.82aLACDG-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309030741.82aLACDG-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/powerpc/kvm/../../../virt/kvm/vfio.c:89:7: warning: attribute declaration must precede definition [-Wignored-attributes]
           fn = symbol_get(vfio_file_iommu_group);
                ^
   include/linux/module.h:805:60: note: expanded from macro 'symbol_get'
   #define symbol_get(x) ({ extern typeof(x) x __attribute__((weak,visibility("hidden"))); &(x); })
                                                              ^
   include/linux/vfio.h:294:35: note: previous definition is here
   static inline struct iommu_group *vfio_file_iommu_group(struct file *file)
                                     ^
>> arch/powerpc/kvm/../../../virt/kvm/vfio.c:89:7: warning: attribute declaration must precede definition [-Wignored-attributes]
           fn = symbol_get(vfio_file_iommu_group);
                ^
   include/linux/module.h:805:65: note: expanded from macro 'symbol_get'
   #define symbol_get(x) ({ extern typeof(x) x __attribute__((weak,visibility("hidden"))); &(x); })
                                                                   ^
   include/linux/vfio.h:294:35: note: previous definition is here
   static inline struct iommu_group *vfio_file_iommu_group(struct file *file)
                                     ^
   2 warnings generated.


vim +89 arch/powerpc/kvm/../../../virt/kvm/vfio.c

4b22ef042d6f54 Jason Gunthorpe      2022-10-07  82  
4b22ef042d6f54 Jason Gunthorpe      2022-10-07  83  #ifdef CONFIG_SPAPR_TCE_IOMMU
50d63b5bbfd122 Jason Gunthorpe      2022-05-04  84  static struct iommu_group *kvm_vfio_file_iommu_group(struct file *file)
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  85  {
50d63b5bbfd122 Jason Gunthorpe      2022-05-04  86  	struct iommu_group *(*fn)(struct file *file);
50d63b5bbfd122 Jason Gunthorpe      2022-05-04  87  	struct iommu_group *ret;
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  88  
50d63b5bbfd122 Jason Gunthorpe      2022-05-04 @89  	fn = symbol_get(vfio_file_iommu_group);
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  90  	if (!fn)
50d63b5bbfd122 Jason Gunthorpe      2022-05-04  91  		return NULL;
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  92  
50d63b5bbfd122 Jason Gunthorpe      2022-05-04  93  	ret = fn(file);
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  94  
50d63b5bbfd122 Jason Gunthorpe      2022-05-04  95  	symbol_put(vfio_file_iommu_group);
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  96  
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  97  	return ret;
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  98  }
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  99  

:::::: The code at line 89 was first introduced by commit
:::::: 50d63b5bbfd12262069ad062611cd5e69c5e9e05 vfio: Change vfio_external_user_iommu_id() to vfio_file_iommu_group()

:::::: TO: Jason Gunthorpe <jgg@nvidia.com>
:::::: CC: Alex Williamson <alex.williamson@redhat.com>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

^ permalink raw reply	[flat|nested] 4+ messages in thread
* arch/powerpc/kvm/../../../virt/kvm/vfio.c:89:7: warning: attribute declaration must precede definition
@ 2023-11-28  3:01 kernel test robot
  2023-11-28 12:45 ` Jason Gunthorpe
  0 siblings, 1 reply; 4+ messages in thread
From: kernel test robot @ 2023-11-28  3:01 UTC (permalink / raw)
  To: Yi Liu; +Cc: llvm, oe-kbuild-all, linux-kernel, Alex Williamson,
	Jason Gunthorpe

Hi Yi,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   2cc14f52aeb78ce3f29677c2de1f06c0e91471ab
commit: c1cce6d079b875396c9a7c6838fc5b024758e540 vfio: Compile vfio_group infrastructure optionally
date:   4 months ago
config: powerpc64-randconfig-002-20231128 (https://download.01.org/0day-ci/archive/20231128/202311280814.KwQVhwqI-lkp@intel.com/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231128/202311280814.KwQVhwqI-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311280814.KwQVhwqI-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/powerpc/kvm/../../../virt/kvm/vfio.c:89:7: warning: attribute declaration must precede definition [-Wignored-attributes]
           fn = symbol_get(vfio_file_iommu_group);
                ^
   include/linux/module.h:805:60: note: expanded from macro 'symbol_get'
   #define symbol_get(x) ({ extern typeof(x) x __attribute__((weak,visibility("hidden"))); &(x); })
                                                              ^
   include/linux/vfio.h:294:35: note: previous definition is here
   static inline struct iommu_group *vfio_file_iommu_group(struct file *file)
                                     ^
>> arch/powerpc/kvm/../../../virt/kvm/vfio.c:89:7: warning: attribute declaration must precede definition [-Wignored-attributes]
           fn = symbol_get(vfio_file_iommu_group);
                ^
   include/linux/module.h:805:65: note: expanded from macro 'symbol_get'
   #define symbol_get(x) ({ extern typeof(x) x __attribute__((weak,visibility("hidden"))); &(x); })
                                                                   ^
   include/linux/vfio.h:294:35: note: previous definition is here
   static inline struct iommu_group *vfio_file_iommu_group(struct file *file)
                                     ^
   2 warnings generated.


vim +89 arch/powerpc/kvm/../../../virt/kvm/vfio.c

4b22ef042d6f54 Jason Gunthorpe      2022-10-07  82  
4b22ef042d6f54 Jason Gunthorpe      2022-10-07  83  #ifdef CONFIG_SPAPR_TCE_IOMMU
50d63b5bbfd122 Jason Gunthorpe      2022-05-04  84  static struct iommu_group *kvm_vfio_file_iommu_group(struct file *file)
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  85  {
50d63b5bbfd122 Jason Gunthorpe      2022-05-04  86  	struct iommu_group *(*fn)(struct file *file);
50d63b5bbfd122 Jason Gunthorpe      2022-05-04  87  	struct iommu_group *ret;
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  88  
50d63b5bbfd122 Jason Gunthorpe      2022-05-04 @89  	fn = symbol_get(vfio_file_iommu_group);
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  90  	if (!fn)
50d63b5bbfd122 Jason Gunthorpe      2022-05-04  91  		return NULL;
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  92  
50d63b5bbfd122 Jason Gunthorpe      2022-05-04  93  	ret = fn(file);
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  94  
50d63b5bbfd122 Jason Gunthorpe      2022-05-04  95  	symbol_put(vfio_file_iommu_group);
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  96  
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  97  	return ret;
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  98  }
121f80ba68f1a5 Alexey Kardashevskiy 2017-03-22  99  

:::::: The code at line 89 was first introduced by commit
:::::: 50d63b5bbfd12262069ad062611cd5e69c5e9e05 vfio: Change vfio_external_user_iommu_id() to vfio_file_iommu_group()

:::::: TO: Jason Gunthorpe <jgg@nvidia.com>
:::::: CC: Alex Williamson <alex.williamson@redhat.com>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2023-11-28 17:14 UTC | newest]

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2023-11-28  3:01 kernel test robot
2023-11-28 12:45 ` Jason Gunthorpe
2023-11-28 17:14   ` Alex Williamson

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