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

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

[Stephen Rothwell]

[-- Attachment #1: Type: text/plain, Size: 554 bytes --]

Hi all,

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

WARNING: could not open /home/sfr/next/next/drivers/ntb/ntb.c: No such file or directory

The only thing I could see that might be relevant is commit

  56dce8121e97 ("kbuild: split out *.mod out of {single,multi}-used-m rules")

and some others in the kbuild tree. Nothing has changed recently in the
ntb tree ...

drievrs/ntb builds a module called ntb but there is no ntb.c file.

Any ideas?

-- 
Cheers,
Stephen Rothwell

[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: linux-next: build warning after merge of the ntb tree

[Logan Gunthorpe]

On 2019-07-15 9:03 p.m., Stephen Rothwell wrote:
> Hi all,
> 
> After merging the ntb tree, today's linux-next build (x86_64 allmodconfig)
> produced this warning:
> 
> WARNING: could not open /home/sfr/next/next/drivers/ntb/ntb.c: No such file or directory
> 
> The only thing I could see that might be relevant is commit
> 
>   56dce8121e97 ("kbuild: split out *.mod out of {single,multi}-used-m rules")
> 
> and some others in the kbuild tree. Nothing has changed recently in the
> ntb tree ...
> 
> drievrs/ntb builds a module called ntb but there is no ntb.c file.
> 
> Any ideas?

I renamed the ntb.c file to core.c so we could add more files to build
ntb.ko. See [1].

Thanks,

Logan


[1]
https://lore.kernel.org/linux-iommu/20190422210528.15289-6-logang@deltatee.com/

Re: linux-next: build warning after merge of the ntb tree

[Stephen Rothwell]

[-- Attachment #1: Type: text/plain, Size: 357 bytes --]

Hi Logan,

On Mon, 15 Jul 2019 21:46:42 -0600 Logan Gunthorpe <logang@deltatee.com> wrote:
>
> I renamed the ntb.c file to core.c so we could add more files to build
> ntb.ko. See [1].

But that was last changed in June, so I assume that some change to the
build system has caused this warning to be produced now.

-- 
Cheers,
Stephen Rothwell

[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: linux-next: build warning after merge of the ntb tree

[Masahiro Yamada]

On Tue, Jul 16, 2019 at 12:03 PM Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> Hi all,
>
> After merging the ntb tree, today's linux-next build (x86_64 allmodconfig)
> produced this warning:
>
> WARNING: could not open /home/sfr/next/next/drivers/ntb/ntb.c: No such file or directory
>
> The only thing I could see that might be relevant is commit
>
>   56dce8121e97 ("kbuild: split out *.mod out of {single,multi}-used-m rules")
>
> and some others in the kbuild tree. Nothing has changed recently in the
> ntb tree ...
>
> drievrs/ntb builds a module called ntb but there is no ntb.c file.
>
> Any ideas?

commit 0539f970a8427138026d4738a7a32d869f1be300
Author: Masahiro Yamada <yamada.masahiro@socionext.com>
Date:   Thu Jul 11 14:44:31 2019 +0900

    kbuild: create *.mod with full directory path and remove MODVERDIR

is the first bad commit.


drivers/ntb/core.c defines MODULE_VERSION().

When CONFIG_DEBUG_SECTION_MISMATCH=y,
scripts/mod/sum.c tries to open the non-existing old
source based on the stale *.mod file
during the directory descending.


I will kill cmd_secanalysis for tomorrow's linux-next.


Thanks for catching various bugs!



-- 
Best Regards
Masahiro Yamada

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

[Stephen Rothwell]

[-- Attachment #1: Type: text/plain, Size: 483 bytes --]

Hi all,

After merging the ntb tree, today's linux-next build (htmldocs) produced
this warning:

Documentation/PCI/endpoint/pci-vntb-function.rst:82: WARNING: Unexpected indentation.
Documentation/PCI/endpoint/pci-vntb-howto.rst:131: WARNING: Title underline too short.

lspci Output at Host side
------------------------

Introduced by commit

  0c4b285d9636 ("Documentation: PCI: Add specification for the PCI vNTB function device")

-- 
Cheers,
Stephen Rothwell

[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]