Re: [PATCH v5 2/4] kernel hacking: new config NO_AUTO_INLINE to disable compiler auto-inline optimizations

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On Wed, 6 Jun 2018 05:34:29 +0800
kbuild test robot <lkp@xxxxxxxxx> wrote:

> Hi Changbin,
> 
> Thank you for the patch! Perhaps something to improve:
> 
> [auto build test WARNING on linus/master]
> [also build test WARNING on v4.17 next-20180605]
> [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/changbin-du-intel-com/kernel-hacking-GCC-optimization-for-better-debug-experience-Og/20180606-001415
> config: sparc64-allyesconfig (attached as .config)
> compiler: sparc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         make.cross ARCH=sparc64 
> 
> All warnings (new ones prefixed by >>):
> 
> >> WARNING: vmlinux.o(.text.unlikely+0x1fc): Section mismatch in reference from the function init_tick_ops() to the function .init.text:get_tick_patch()  
>    The function init_tick_ops() references
>    the function __init get_tick_patch().
>    This is often because init_tick_ops lacks a __init
>    annotation or the annotation of get_tick_patch is wrong.

And again this patch uncovered a bug someplace else.

-- Steve

> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation




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