Re: [PATCH] lib/scatterlist: Provide a DMA page iterator

Jason Gunthorpe
2019-01-05T03:21:50Z

On Sat, Jan 05, 2019 at 10:37:17AM +0800, kbuild test robot wrote:
> Hi Jason,
>
> I love your patch! Yet something to improve:
>
> [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]
>
> url: https://github.com/0day-ci/linux/commits/Jason-Gunthorpe/lib-scatterlist-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=x86_64
>
> All error/warnings (new ones prefixed by >>):
>
> In file included from lib/scatterlist.c:9:0:
> >> include/linux/export.h:81:20: error: redefinition of '__kstrtab___sg_page_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_SYMBOL'
> __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