Re: [PATCH 3/3] mm: memfd: remove memfd code from shmem files and use new memfd files

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On 01/30/2018 03:49 PM, kbuild test robot wrote:
> Hi Mike,
> 
> Thank you for the patch! Perhaps something to improve:
> 
> [auto build test WARNING on mmotm/master]
> [also build test WARNING on next-20180126]
> [cannot apply to linus/master v4.15]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> 
> url:    https://github.com/0day-ci/linux/commits/Mike-Kravetz/restructure-memfd-code/20180131-023405
> base:   git://git.cmpxchg.org/linux-mmotm.git master
> reproduce:
>         # apt-get install sparse
>         make ARCH=x86_64 allmodconfig
>         make C=1 CF=-D__CHECK_ENDIAN__
> 
> 
> sparse warnings: (new ones prefixed by >>)
> 
>>> mm/memfd.c:40:9: sparse: incorrect type in assignment (different address spaces) @@ expected void @@ got void <avoid @@

<snip>

> :::::: The code at line 40 was first introduced by commit
> :::::: 6df4ed2a410bc04f1ec04dce16ccd236707f7f32 mm: memfd: split out memfd for use by multiple filesystems

Yes, but I also removed those same warnings from mm/shmem.c so I should
get some credit for that. :)

I fixed up the warnings in the moved code and will send out v2.
-- 
Mike Kravetz

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