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From:   Jason Gunthorpe <jgg@mellanox.com>
To:     kbuild test robot <lkp@intel.com>
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        Thomas Hellstrom <thellstrom@vmware.com>,
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Subject: Re: [PATCH] lib/scatterlist: Provide a DMA page iterator
Thread-Topic: [PATCH] lib/scatterlist: Provide a DMA page iterator
Thread-Index: AQHUpH3T+Rn6hCeN4kq6RDaSbJgsYKWf9imAgAAMaQA=
Date:   Sat, 5 Jan 2019 03:21:50 +0000
Message-ID: <20190105032142.GN28204@mellanox.com>
References: <20190104223531.GA1705@ziepe.ca>
 <201901051046.ew7HAHfl%fengguang.wu@intel.com>
In-Reply-To: <201901051046.ew7HAHfl%fengguang.wu@intel.com>
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On Sat, Jan 05, 2019 at 10:37:17AM +0800, kbuild test robot wrote:
> Hi Jason,
>=20
> I love your patch! Yet something to improve:
>=20
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.20 next-20190103]
> [if your patch is applied to the wrong git tree, please drop us a note to=
 help improve the system]
>=20
> url:    https://github.com/0day-ci/linux/commits/Jason-Gunthorpe/lib-scat=
terlist-Provide-a-DMA-page-iterator/20190105-081739
> config: x86_64-randconfig-x017-201900 (attached as .config)
> compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=3Dx86_64=20
>=20
> All error/warnings (new ones prefixed by >>):
>=20
>    In file included from lib/scatterlist.c:9:0:
> >> include/linux/export.h:81:20: error: redefinition of '__kstrtab___sg_p=
age_iter_next'
>      static const char __kstrtab_##sym[]    \
>                        ^
>    include/linux/export.h:120:25: note: in expansion of macro '___EXPORT_=
SYMBOL'
>     #define __EXPORT_SYMBOL ___EXPORT_SYMBOL
>                             ^~~~~~~~~~~~~~~~
>    include/linux/export.h:124:2: note: in expansion of macro '__EXPORT_SY=
MBOL'
>      __EXPORT_SYMBOL(sym, "")
>      ^~~~~~~~~~~~~~~
> >> lib/scatterlist.c:652:1: note: in expansion of macro 'EXPORT_SYMBOL'
>     EXPORT_SYMBOL(__sg_page_iter_next);
>     ^~~~~~~~~~~~~

Woops, should be __sg_page_dma_iter_next.. Will resend after getting
some feedback.

Jason