Re: [kees:for-next/fortify 8/8] include/linux/string.h:309:4: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter

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On Sun, 25 Jun 2017 09:16:32 +0800 kbuild test robot <fengguang.wu@xxxxxxxxx> wrote:

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/fortify
> head:   d481d95b725d2abc7ed31f2f8c4c95c2bd8b0282
> commit: d481d95b725d2abc7ed31f2f8c4c95c2bd8b0282 [8/8] include/linux/string.h: add the option of fortified string.h functions
> config: i386-allmodconfig (attached as .config)
> compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
> reproduce:
>         git checkout d481d95b725d2abc7ed31f2f8c4c95c2bd8b0282
>         # save the attached .config to linux build tree
>         make ARCH=i386 
> 
> All errors (new ones prefixed by >>):
> 
>    In file included from arch/x86/include/asm/page_32.h:34:0,
>                     from arch/x86/include/asm/page.h:13,
>                     from arch/x86/include/asm/thread_info.h:11,
>                     from include/linux/thread_info.h:37,
>                     from arch/x86/include/asm/preempt.h:6,
>                     from include/linux/preempt.h:80,
>                     from include/linux/spinlock.h:50,
>                     from include/linux/mmzone.h:7,
>                     from include/linux/gfp.h:5,
>                     from include/linux/slab.h:14,
>                     from drivers/scsi/csiostor/csio_lnode.c:37:
>    In function 'memcpy',
>        inlined from 'csio_append_attrib' at drivers/scsi/csiostor/csio_lnode.c:248:2,

hm, this was added by Kees's 42c335f7e6702 ("scsi: csiostor: Avoid
content leaks and casts").

I think I'll tend to ignore these odd stragglers now - a few more will
probably pop up and we can fix them after 4.13-rc1 as they are
reported.

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