[rppt:pg_table/v0.0 8/18] arch/powerpc/include/asm/book3s/64/pgalloc.h:100:29: error: passing argument 1 of 'pgtable_gfp_flags' from incompatible pointer type

[rppt:pg_table/v0.0 8/18] arch/powerpc/include/asm/book3s/64/pgalloc.h:100:29: error: passing argument 1 of 'pgtable_gfp_flags' from incompatible pointer type

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux.git pg_table/v0.0
head:   fd150c5a9ef6e3e43818825c69a46de2b427dedf
commit: 582d02322eb4f4d2d3903c0967216bc6b671164f [8/18] mm: enable pud allocations for pg_table
config: powerpc-randconfig-a001-20200202 (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 582d02322eb4f4d2d3903c0967216bc6b671164f
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=powerpc 

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

All errors (new ones prefixed by >>):

   In file included from arch/powerpc/include/asm/book3s/pgalloc.h:10:0,
                    from arch/powerpc/include/asm/pgalloc.h:68,
                    from arch/powerpc//mm/mem.c:35:
   arch/powerpc/include/asm/book3s/64/pgalloc.h: In function 'pud_alloc_one':
>> arch/powerpc/include/asm/book3s/64/pgalloc.h:100:29: error: passing argument 1 of 'pgtable_gfp_flags' from incompatible pointer type [-Werror=incompatible-pointer-types]
              pgtable_gfp_flags(pgt, GFP_KERNEL));
                                ^~~
   In file included from arch/powerpc//mm/mem.c:35:0:
   arch/powerpc/include/asm/pgalloc.h:8:21: note: expected 'struct mm_struct *' but argument is of type 'struct pg_table *'
    static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp)
                        ^~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/pgtable_gfp_flags +100 arch/powerpc/include/asm/book3s/64/pgalloc.h

    94	
    95	static inline pud_t *pud_alloc_one(struct pg_table *pgt, unsigned long addr)
    96	{
    97		pud_t *pud;
    98	
    99		pud = kmem_cache_alloc(PGT_CACHE(PUD_CACHE_INDEX),
 > 100				       pgtable_gfp_flags(pgt, GFP_KERNEL));
   101		/*
   102		 * Tell kmemleak to ignore the PUD, that means don't scan it for
   103		 * pointers and don't consider it a leak. PUDs are typically only
   104		 * referred to by their PGD, but kmemleak is not able to recognise those
   105		 * as pointers, leading to false leak reports.
   106		 */
   107		kmemleak_ignore(pud);
   108	
   109		return pud;
   110	}
   111	

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation

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