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linux-next: build warning after merge of the kbuild tree

Started byStephen Rothwell <sfr@canb.auug.org.au>
First post2016-12-01 00:10 +0100
Last post2016-12-01 03:10 +0100
Articles 2 — 2 participants

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  linux-next: build warning after merge of the kbuild tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-12-01 00:10 +0100
    Re: linux-next: build warning after merge of the kbuild tree Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 03:10 +0100

#1533658 — linux-next: build warning after merge of the kbuild tree

FromStephen Rothwell <sfr@canb.auug.org.au>
Date2016-12-01 00:10 +0100
Subjectlinux-next: build warning after merge of the kbuild tree
Message-ID<sJmaJ-472-9@gated-at.bofh.it>
Hi Michal,

After merging the kbuild tree, today's linux-next build (x86_64
allmodconfig) produced this warning:

WARNING: EXPORT symbol "__sw_hweight32" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "memcpy_mcsafe_unrolled" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "empty_zero_page" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__get_user_2" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__put_user_2" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__fentry__" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "native_load_gs_index" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__copy_user_nocache" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "copy_user_generic_unrolled" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "memset" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "_copy_to_user" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__sw_hweight64" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__put_user_1" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__memcpy" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "memmove" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__put_user_8" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "copy_user_generic_string" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__get_user_4" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "clear_page" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__memset" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__memmove" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "copy_user_enhanced_fast_string" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "_copy_from_user" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__get_user_1" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "phys_base" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__get_user_8" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "copy_page" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__put_user_4" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "memcpy" [vmlinux] version generation failed, symbol will not be versioned.

Introduced by commit

  d8c1eb86e952 ("kbuild: modpost warn if export version crc is missing")

-- 
Cheers,
Stephen Rothwell

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#1533746

FromNicholas Piggin <npiggin@gmail.com>
Date2016-12-01 03:10 +0100
Message-ID<sJoYV-5Ua-5@gated-at.bofh.it>
In reply to#1533658
On Thu, 1 Dec 2016 10:06:08 +1100
Stephen Rothwell <sfr@canb.auug.org.au> wrote:

> Hi Michal,
> 
> After merging the kbuild tree, today's linux-next build (x86_64
> allmodconfig) produced this warning:
> 
> WARNING: EXPORT symbol "__sw_hweight32" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "memcpy_mcsafe_unrolled" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "empty_zero_page" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__get_user_2" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__put_user_2" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__fentry__" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "native_load_gs_index" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__copy_user_nocache" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "copy_user_generic_unrolled" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "memset" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "_copy_to_user" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__sw_hweight64" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__put_user_1" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__memcpy" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "memmove" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__put_user_8" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "copy_user_generic_string" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__get_user_4" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "clear_page" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__memset" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__memmove" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "copy_user_enhanced_fast_string" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "_copy_from_user" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__get_user_1" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "phys_base" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__get_user_8" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "copy_page" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "__put_user_4" [vmlinux] version generation failed, symbol will not be versioned.
> WARNING: EXPORT symbol "memcpy" [vmlinux] version generation failed, symbol will not be versioned.
> 
> Introduced by commit
> 
>   d8c1eb86e952 ("kbuild: modpost warn if export version crc is missing")
> 

These are existing problems caught by the new warning. The modversions saga
has another chapter left, but one way or another we'll get rid of the warnings
for 4.10.

Thanks,
Nick

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