From: kernel test robot <lkp@intel.com>
To: Ruidong Tian <tianruidong@linux.alibaba.com>
Cc: oe-kbuild-all@lists.linux.dev
Subject: Re: [RFC PATCH] device/dax: Allow MCE recovery when accessing PFN metadata
Date: Wed, 31 Dec 2025 00:39:42 +0100 [thread overview]
Message-ID: <202512310049.R86iwUtl-lkp@intel.com> (raw)
In-Reply-To: <20251230075951.85252-1-tianruidong@linux.alibaba.com>
Hi Ruidong,
[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:
[auto build test ERROR on cxl/next]
[also build test ERROR on linus/master v6.19-rc3 next-20251219]
[cannot apply to cxl/pending]
[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#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Ruidong-Tian/device-dax-Allow-MCE-recovery-when-accessing-PFN-metadata/20251230-160432
base: https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git next
patch link: https://lore.kernel.org/r/20251230075951.85252-1-tianruidong%40linux.alibaba.com
patch subject: [RFC PATCH] device/dax: Allow MCE recovery when accessing PFN metadata
config: x86_64-rhel-9.4-kunit (https://download.01.org/0day-ci/archive/20251231/202512310049.R86iwUtl-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251231/202512310049.R86iwUtl-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/202512310049.R86iwUtl-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/dax/super.c:16:
>> drivers/dax/dax-private.h:158:2: error: #endif without #if
158 | #endif
| ^~~~~
--
In file included from drivers/dax/device.c:13:
>> drivers/dax/dax-private.h:158:2: error: #endif without #if
158 | #endif
| ^~~~~
In file included from include/linux/mmzone.h:23,
from include/linux/memremap.h:5,
from drivers/dax/device.c:3:
drivers/dax/device.c: In function 'dax_set_mapping':
>> include/linux/page-flags.h:308:33: error: passing argument 1 of 'dax_test_page_mc' from incompatible pointer type [-Wincompatible-pointer-types]
306 | #define page_folio(p) (_Generic((p), \
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
307 | const struct page *: (const struct folio *)_compound_head(p), \
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
308 | struct page *: (struct folio *)_compound_head(p)))
| ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| struct folio *
drivers/dax/device.c:93:61: note: in expansion of macro 'page_folio'
93 | if (dax_test_page_mc(p) || dax_test_page_mc(page_folio(p)))
| ^~~~~~~~~~
drivers/dax/dax-private.h:144:55: note: expected 'const struct page *' but argument is of type 'struct folio *'
144 | static inline int dax_test_page_mc(const struct page *page)
| ~~~~~~~~~~~~~~~~~~~^~~~
--
In file included from device.c:13:
dax-private.h:158:2: error: #endif without #if
158 | #endif
| ^~~~~
In file included from include/linux/mmzone.h:23,
from include/linux/memremap.h:5,
from device.c:3:
device.c: In function 'dax_set_mapping':
>> include/linux/page-flags.h:308:33: error: passing argument 1 of 'dax_test_page_mc' from incompatible pointer type [-Wincompatible-pointer-types]
306 | #define page_folio(p) (_Generic((p), \
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
307 | const struct page *: (const struct folio *)_compound_head(p), \
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
308 | struct page *: (struct folio *)_compound_head(p)))
| ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| struct folio *
device.c:93:61: note: in expansion of macro 'page_folio'
93 | if (dax_test_page_mc(p) || dax_test_page_mc(page_folio(p)))
| ^~~~~~~~~~
dax-private.h:144:55: note: expected 'const struct page *' but argument is of type 'struct folio *'
144 | static inline int dax_test_page_mc(const struct page *page)
| ~~~~~~~~~~~~~~~~~~~^~~~
vim +158 drivers/dax/dax-private.h
b2485f92a36cf3 Ruidong Tian 2025-12-30 132
b2485f92a36cf3 Ruidong Tian 2025-12-30 133 #ifndef copy_mc_to_kernel
b2485f92a36cf3 Ruidong Tian 2025-12-30 134 static inline int dax_test_page_mc(const struct page *page)
b2485f92a36cf3 Ruidong Tian 2025-12-30 135 {
b2485f92a36cf3 Ruidong Tian 2025-12-30 136 return 0;
b2485f92a36cf3 Ruidong Tian 2025-12-30 137 }
b2485f92a36cf3 Ruidong Tian 2025-12-30 138 static inline int dax_test_folio_mc(const struct folio *page)
b2485f92a36cf3 Ruidong Tian 2025-12-30 139 {
b2485f92a36cf3 Ruidong Tian 2025-12-30 140 return 0;
b2485f92a36cf3 Ruidong Tian 2025-12-30 141 }
b2485f92a36cf3 Ruidong Tian 2025-12-30 142 #else
b2485f92a36cf3 Ruidong Tian 2025-12-30 143 #include <linux/uaccess.h>
b2485f92a36cf3 Ruidong Tian 2025-12-30 144 static inline int dax_test_page_mc(const struct page *page)
b2485f92a36cf3 Ruidong Tian 2025-12-30 145 {
b2485f92a36cf3 Ruidong Tian 2025-12-30 146 struct page _p;
b2485f92a36cf3 Ruidong Tian 2025-12-30 147
b2485f92a36cf3 Ruidong Tian 2025-12-30 148 return copy_mc_to_kernel(&_p, page, sizeof(struct page));
b2485f92a36cf3 Ruidong Tian 2025-12-30 149 }
b2485f92a36cf3 Ruidong Tian 2025-12-30 150 static inline int dax_test_folio_mc(const struct folio *folio)
b2485f92a36cf3 Ruidong Tian 2025-12-30 151 {
b2485f92a36cf3 Ruidong Tian 2025-12-30 152 struct folio _f;
b2485f92a36cf3 Ruidong Tian 2025-12-30 153
b2485f92a36cf3 Ruidong Tian 2025-12-30 154 return copy_mc_to_kernel(&_f, folio, sizeof(struct folio));
b2485f92a36cf3 Ruidong Tian 2025-12-30 155 }
b2485f92a36cf3 Ruidong Tian 2025-12-30 156 #endif
b2485f92a36cf3 Ruidong Tian 2025-12-30 157 #endif
efebc711180f7f Dave Jiang 2017-04-07 @158 #endif
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
prev parent reply other threads:[~2025-12-30 23:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-30 7:59 [RFC PATCH] device/dax: Allow MCE recovery when accessing PFN metadata Ruidong Tian
2025-12-30 23:39 ` kernel test robot [this message]
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