CC: [email protected]
CC: Linux Memory Management List <[email protected]>
TO: "Matthew Wilcox (Oracle)" <[email protected]>
CC: Andrew Morton <[email protected]>
CC: Linux Memory Management List <[email protected]>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 
master
head:   37dfbfbdca66834bc0f64ec9b35e09ac6c8898da
commit: e8805271b82793e6d1f3de786c2278e4d622bdb6 [11447/12022] mm/gfp: add 
kernel-doc for gfp_t
:::::: branch date: 12 hours ago
:::::: commit date: 4 days ago
config: microblaze-randconfig-s032-20210222 (attached as .config)
compiler: microblaze-linux-gcc (GCC) 9.3.0
reproduce:
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.3-229-g60c1f270-dirty
        # 
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=e8805271b82793e6d1f3de786c2278e4d622bdb6
        git remote add linux-next 
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout e8805271b82793e6d1f3de786c2278e4d622bdb6
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=microblaze 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>


"sparse warnings: (new ones prefixed by >>)"
   lib/btree.c: note: in included file (through include/linux/slab.h):
   include/linux/gfp.h:20:32: sparse: sparse: symbol 'gfp_t' redeclared with 
different type (different base types):
   include/linux/gfp.h:20:32: sparse:    restricted gfp_t [usertype] gfp_t
   lib/btree.c: note: in included file (through include/linux/limits.h, 
include/linux/kernel.h, include/linux/btree.h):
   include/linux/types.h:148:32: sparse: note: previously declared as:
   include/linux/types.h:148:32: sparse:    restricted gfp_t [usertype] gfp_t
   lib/btree.c:81:6: sparse: sparse: symbol 'btree_alloc' redeclared with 
different type (incompatible argument 1 (different base types)):
>> lib/btree.c:81:6: sparse:    void *extern [addressable] [toplevel] 
>> btree_alloc( ... )
   lib/btree.c: note: in included file:
   include/linux/btree.h:49:6: sparse: note: previously declared as:
>> include/linux/btree.h:49:6: sparse:    void *extern [addressable] [toplevel] 
>> btree_alloc( ... )
   lib/btree.c:510:5: sparse: sparse: symbol 'btree_insert' redeclared with 
different type (incompatible argument 5 (different base types)):
>> lib/btree.c:510:5: sparse:    int extern [addressable] [signed] [toplevel] 
>> btree_insert( ... )
   include/linux/btree.h:115:18: sparse: note: previously declared as:
>> include/linux/btree.h:115:18: sparse:    int extern [addressable] [signed] 
>> [toplevel] btree_insert( ... )
   lib/btree.c:639:5: sparse: sparse: symbol 'btree_merge' redeclared with 
different type (incompatible argument 4 (different base types)):
>> lib/btree.c:639:5: sparse:    int extern [addressable] [signed] [toplevel] 
>> btree_merge( ... )
   include/linux/btree.h:158:5: sparse: note: previously declared as:
>> include/linux/btree.h:158:5: sparse:    int extern [addressable] [signed] 
>> [toplevel] btree_merge( ... )

vim +81 lib/btree.c

5db53f3e80dee2 Joern Engel 2009-11-20  80  
5db53f3e80dee2 Joern Engel 2009-11-20 @81  void *btree_alloc(gfp_t gfp_mask, 
void *pool_data)
5db53f3e80dee2 Joern Engel 2009-11-20  82  {
5db53f3e80dee2 Joern Engel 2009-11-20  83       return 
kmem_cache_alloc(btree_cachep, gfp_mask);
5db53f3e80dee2 Joern Engel 2009-11-20  84  }
5db53f3e80dee2 Joern Engel 2009-11-20  85  EXPORT_SYMBOL_GPL(btree_alloc);
5db53f3e80dee2 Joern Engel 2009-11-20  86  

:::::: The code at line 81 was first introduced by commit
:::::: 5db53f3e80dee2d9dff5e534f9e9fe1db17c9936 [LogFS] add new flash file 
system

:::::: TO: Joern Engel <[email protected]>
:::::: CC: Joern Engel <[email protected]>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

Attachment: .config.gz
Description: application/gzip

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