Re: [kbuild-all] [PATCH 19/23] NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.

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On Tue, Feb 20, 2018 at 11:17:03AM +1100, NeilBrown wrote:
> On Mon, Feb 19 2018, kbuild test robot wrote:
> 
> > Hi NeilBrown,
> >
> > Thank you for the patch! Perhaps something to improve:
> >
> > [auto build test WARNING on nfs/linux-next]
> > [also build test WARNING on v4.16-rc2 next-20180219]
> > [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/NeilBrown/Remove-generic-rpc-credentials-and-associated-changed-V3/20180219-190836
> > base:   git://git.linux-nfs.org/projects/trondmy/linux-nfs.git linux-next
> > reproduce:
> >         # apt-get install sparse
> >         make ARCH=x86_64 allmodconfig
> >         make C=1 CF=-D__CHECK_ENDIAN__
> >
> >
> > sparse warnings: (new ones prefixed by >>)
> >
> >>> fs/nfs/flexfilelayout/flexfilelayout.c:517:40: sparse: incorrect type in initializer (different address spaces) @@ expected struct cred const @@ got cred const @@
> >    fs/nfs/flexfilelayout/flexfilelayout.c:517:40: expected struct cred const
> >    fs/nfs/flexfilelayout/flexfilelayout.c:517:40: got struct cred const Documentation Kbuild Kconfig Makefile certs drivers firmware fs include samples scripts sound tools cred
> 
> Hi Mr Robot :-)
>  It looks like you have some strange wild-card expansion happening here.
>  I think the above should be
> >    fs/nfs/flexfilelayout/flexfilelayout.c:517:40: got struct cred const * cred
thanks for pointing this out, we will fix it.

> 
> Even after correcting the that, I cannot see what the different address
> spaces are that might be a problem.
> Does anyone have any ideas?
> 
> Thanks,
> NeilBrown



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