[PATCH 00/24] Fix some issues at documentation

[PATCH 00/24] Fix some issues at documentation

[Mauro Carvalho Chehab]

Hi John,

The first patch in this series fix a bad character used instead of
a "(c)" UTF-8 symbol.

The remaining ones fix several broken references to files
under Documentation/, several due to DT schema conversions
from .txt to .yaml.

Mauro Carvalho Chehab (24):
  visorbus: fix a copyright symbol that was bad encoded
  dt-bindings: net: dsa: sja1105: update nxp,sja1105.yaml reference
  dt-bindings: arm: mediatek: mmsys: update mediatek,mmsys.yaml
    reference
  dt-bindings: w1: update w1-gpio.yaml reference
  dt-bindings: mmc: update mmc-card.yaml reference
  libbpf: update index.rst reference
  docs: accounting: update delay-accounting.rst reference
  tools: bpftool: update bpftool-prog.rst reference
  tools: bpftool: update bpftool-map.rst reference
  bpftool: update bpftool-cgroup.rst reference
  MAINTAINERS: update mtd-physmap.yaml reference
  MAINTAINERS: update arm,vic.yaml reference
  MAINTAINERS: update aspeed,i2c.yaml reference
  MAINTAINERS: update faraday,ftrtc010.yaml reference
  MAINTAINERS: update fsl,fec.yaml reference
  MAINTAINERS: update mtd-physmap.yaml reference
  MAINTAINERS: update ti,am654-hbmc.yaml reference
  MAINTAINERS: update ti,sci.yaml reference
  MAINTAINERS: update intel,ixp46x-rng.yaml reference
  MAINTAINERS: update nxp,imx8-jpeg.yaml reference
  MAINTAINERS: update gemini.yaml reference
  MAINTAINERS: update brcm,unimac-mdio.yaml reference
  MAINTAINERS: update chipone,icn8318.yaml reference
  MAINTAINERS: update silergy,sy8106a.yaml reference

 Documentation/admin-guide/sysctl/kernel.rst   |  2 +-
 Documentation/bpf/index.rst                   |  2 +-
 .../display/mediatek/mediatek,disp.txt        |  2 +-
 Documentation/networking/dsa/sja1105.rst      |  2 +-
 Documentation/w1/masters/w1-gpio.rst          |  2 +-
 MAINTAINERS                                   | 28 +++++++++----------
 drivers/mmc/host/omap_hsmmc.c                 |  2 +-
 drivers/visorbus/visorbus_main.c              |  2 +-
 .../selftests/bpf/test_bpftool_synctypes.py   |  6 ++--
 9 files changed, 24 insertions(+), 24 deletions(-)

-- 
2.31.1

[PATCH 06/24] libbpf: update index.rst reference

[Mauro Carvalho Chehab]

Changeset d20b41115ad5 ("libbpf: Rename libbpf documentation index file")
renamed: Documentation/bpf/libbpf/libbpf.rst
to: Documentation/bpf/libbpf/index.rst.

Update its cross-reference accordingly.

Fixes: d20b41115ad5 ("libbpf: Rename libbpf documentation index file")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 Documentation/bpf/index.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/bpf/index.rst b/Documentation/bpf/index.rst
index 1ceb5d704a97..817a201a1282 100644
--- a/Documentation/bpf/index.rst
+++ b/Documentation/bpf/index.rst
@@ -15,7 +15,7 @@ that goes into great technical depth about the BPF Architecture.
 libbpf
 ======
 
-Documentation/bpf/libbpf/libbpf.rst is a userspace library for loading and interacting with bpf programs.
+Documentation/bpf/libbpf/index.rst is a userspace library for loading and interacting with bpf programs.
 
 BPF Type Format (BTF)
 =====================
-- 
2.31.1

[PATCH 08/24] tools: bpftool: update bpftool-prog.rst reference

[Mauro Carvalho Chehab]

The file name: Documentation/bpftool-prog.rst
should be, instead: tools/bpf/bpftool/Documentation/bpftool-prog.rst.

Update its cross-reference accordingly.

Fixes: a2b5944fb4e0 ("selftests/bpf: Check consistency between bpftool source, doc, completion")
Fixes: ff69c21a85a4 ("tools: bpftool: add documentation")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 tools/testing/selftests/bpf/test_bpftool_synctypes.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/test_bpftool_synctypes.py b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
index be54b7335a76..27a2c369a798 100755
--- a/tools/testing/selftests/bpf/test_bpftool_synctypes.py
+++ b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
@@ -374,7 +374,7 @@ class ManProgExtractor(ManPageExtractor):
     """
     An extractor for bpftool-prog.rst.
     """
-    filename = os.path.join(BPFTOOL_DIR, 'Documentation/bpftool-prog.rst')
+    filename = os.path.join(BPFTOOL_DIR, 'tools/bpf/bpftool/Documentation/bpftool-prog.rst')
 
     def get_attach_types(self):
         return self.get_rst_list('ATTACH_TYPE')
-- 
2.31.1

[PATCH 09/24] tools: bpftool: update bpftool-map.rst reference

[Mauro Carvalho Chehab]

The file name: Documentation/bpftool-map.rst
should be, instead: tools/bpf/bpftool/Documentation/bpftool-map.rst.

Update its cross-reference accordingly.

Fixes: a2b5944fb4e0 ("selftests/bpf: Check consistency between bpftool source, doc, completion")
Fixes: ff69c21a85a4 ("tools: bpftool: add documentation")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 tools/testing/selftests/bpf/test_bpftool_synctypes.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/test_bpftool_synctypes.py b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
index 27a2c369a798..2d7eb683bd5a 100755
--- a/tools/testing/selftests/bpf/test_bpftool_synctypes.py
+++ b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
@@ -383,7 +383,7 @@ class ManMapExtractor(ManPageExtractor):
     """
     An extractor for bpftool-map.rst.
     """
-    filename = os.path.join(BPFTOOL_DIR, 'Documentation/bpftool-map.rst')
+    filename = os.path.join(BPFTOOL_DIR, 'tools/bpf/bpftool/Documentation/bpftool-map.rst')
 
     def get_map_types(self):
         return self.get_rst_list('TYPE')
-- 
2.31.1

[PATCH 10/24] bpftool: update bpftool-cgroup.rst reference

[Mauro Carvalho Chehab]

The file name: Documentation/bpftool-cgroup.rst
should be, instead: tools/bpf/bpftool/Documentation/bpftool-cgroup.rst.

Update its cross-reference accordingly.

Fixes: a2b5944fb4e0 ("selftests/bpf: Check consistency between bpftool source, doc, completion")
Fixes: 5ccda64d38cc ("bpftool: implement cgroup bpf operations")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 tools/testing/selftests/bpf/test_bpftool_synctypes.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/test_bpftool_synctypes.py b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
index 2d7eb683bd5a..c974abd4db13 100755
--- a/tools/testing/selftests/bpf/test_bpftool_synctypes.py
+++ b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
@@ -392,7 +392,7 @@ class ManCgroupExtractor(ManPageExtractor):
     """
     An extractor for bpftool-cgroup.rst.
     """
-    filename = os.path.join(BPFTOOL_DIR, 'Documentation/bpftool-cgroup.rst')
+    filename = os.path.join(BPFTOOL_DIR, 'tools/bpf/bpftool/Documentation/bpftool-cgroup.rst')
 
     def get_attach_types(self):
         return self.get_rst_list('ATTACH_TYPE')
-- 
2.31.1

Re: [PATCH 08/24] tools: bpftool: update bpftool-prog.rst reference

[Quentin Monnet]

2021-09-16 11:14 UTC+0200 ~ Mauro Carvalho Chehab
<mchehab+huawei@kernel.org>
> The file name: Documentation/bpftool-prog.rst
> should be, instead: tools/bpf/bpftool/Documentation/bpftool-prog.rst.
> 
> Update its cross-reference accordingly.
> 
> Fixes: a2b5944fb4e0 ("selftests/bpf: Check consistency between bpftool source, doc, completion")
> Fixes: ff69c21a85a4 ("tools: bpftool: add documentation")

Hi,
How is this a fix for the commit that added the documentation in bpftool?

> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> ---
>  tools/testing/selftests/bpf/test_bpftool_synctypes.py | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/bpf/test_bpftool_synctypes.py b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
> index be54b7335a76..27a2c369a798 100755
> --- a/tools/testing/selftests/bpf/test_bpftool_synctypes.py
> +++ b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
> @@ -374,7 +374,7 @@ class ManProgExtractor(ManPageExtractor):
>      """
>      An extractor for bpftool-prog.rst.
>      """
> -    filename = os.path.join(BPFTOOL_DIR, 'Documentation/bpftool-prog.rst')
> +    filename = os.path.join(BPFTOOL_DIR, 'tools/bpf/bpftool/Documentation/bpftool-prog.rst')
>  
>      def get_attach_types(self):
>          return self.get_rst_list('ATTACH_TYPE')
> 

No I don't believe it should. BPFTOOL_DIR already contains
'tools/bpf/bpftool' and the os.path.join() concatenates the two path
fragments.

Where is this suggestion coming from? Did you face an issue with the script?

Same comment applies for the next two patches.

Quentin

Re: [PATCH 08/24] tools: bpftool: update bpftool-prog.rst reference

[Mauro Carvalho Chehab]

Hi Quentin,

Em Thu, 16 Sep 2021 10:43:45 +0100
Quentin Monnet <quentin@isovalent.com> escreveu:

> 2021-09-16 11:14 UTC+0200 ~ Mauro Carvalho Chehab
> <mchehab+huawei@kernel.org>
> > The file name: Documentation/bpftool-prog.rst
> > should be, instead: tools/bpf/bpftool/Documentation/bpftool-prog.rst.
> > 
> > Update its cross-reference accordingly.
> > 
> > Fixes: a2b5944fb4e0 ("selftests/bpf: Check consistency between bpftool source, doc, completion")
> > Fixes: ff69c21a85a4 ("tools: bpftool: add documentation")  
> 
> Hi,
> How is this a fix for the commit that added the documentation in bpftool?
> 
> > Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> > ---
> >  tools/testing/selftests/bpf/test_bpftool_synctypes.py | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/tools/testing/selftests/bpf/test_bpftool_synctypes.py b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
> > index be54b7335a76..27a2c369a798 100755
> > --- a/tools/testing/selftests/bpf/test_bpftool_synctypes.py
> > +++ b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
> > @@ -374,7 +374,7 @@ class ManProgExtractor(ManPageExtractor):
> >      """
> >      An extractor for bpftool-prog.rst.
> >      """
> > -    filename = os.path.join(BPFTOOL_DIR, 'Documentation/bpftool-prog.rst')
> > +    filename = os.path.join(BPFTOOL_DIR, 'tools/bpf/bpftool/Documentation/bpftool-prog.rst')
> >  
> >      def get_attach_types(self):
> >          return self.get_rst_list('ATTACH_TYPE')
> >   
> 
> No I don't believe it should. BPFTOOL_DIR already contains
> 'tools/bpf/bpftool' and the os.path.join() concatenates the two path
> fragments.
> 
> Where is this suggestion coming from? Did you face an issue with the script?

No, I didn't face any issues with this script.

The suggestion cames from the script at:

	./scripts/documentation-file-ref-check

which is meant to discover broken doc references. 

Such script has already a rule to handle stuff under tools/:

		# Accept relative Documentation patches for tools/
		if ($f =~ m/tools/) {
			my $path = $f;
			$path =~ s,(.*)/.*,$1,;
			next if (grep -e, glob("$path/$ref $path/../$ref $path/$fulref"));
		}

but it seems it needs a fixup in order for it to stop reporting issues
at test_bpftool_synctypes.py:

	$ ./scripts/documentation-file-ref-check 
	...
	tools/testing/selftests/bpf/test_bpftool_synctypes.py: Documentation/bpftool-prog.rst
	tools/testing/selftests/bpf/test_bpftool_synctypes.py: Documentation/bpftool-map.rst
	tools/testing/selftests/bpf/test_bpftool_synctypes.py: Documentation/bpftool-cgroup.rst

I'll drop the patches touching it for a next version, probably
adding a fix for such script.

Thanks,
Mauro

Re: [PATCH 08/24] tools: bpftool: update bpftool-prog.rst reference

[Quentin Monnet]

2021-09-16 12:49 UTC+0200 ~ Mauro Carvalho Chehab
<mchehab+huawei@kernel.org>
> Hi Quentin,
> 
> Em Thu, 16 Sep 2021 10:43:45 +0100
> Quentin Monnet <quentin@isovalent.com> escreveu:
> 
>> 2021-09-16 11:14 UTC+0200 ~ Mauro Carvalho Chehab
>> <mchehab+huawei@kernel.org>
>>> The file name: Documentation/bpftool-prog.rst
>>> should be, instead: tools/bpf/bpftool/Documentation/bpftool-prog.rst.
>>>
>>> Update its cross-reference accordingly.
>>>
>>> Fixes: a2b5944fb4e0 ("selftests/bpf: Check consistency between bpftool source, doc, completion")
>>> Fixes: ff69c21a85a4 ("tools: bpftool: add documentation")  
>>
>> Hi,
>> How is this a fix for the commit that added the documentation in bpftool?
>>
>>> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
>>> ---
>>>  tools/testing/selftests/bpf/test_bpftool_synctypes.py | 2 +-
>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/tools/testing/selftests/bpf/test_bpftool_synctypes.py b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
>>> index be54b7335a76..27a2c369a798 100755
>>> --- a/tools/testing/selftests/bpf/test_bpftool_synctypes.py
>>> +++ b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
>>> @@ -374,7 +374,7 @@ class ManProgExtractor(ManPageExtractor):
>>>      """
>>>      An extractor for bpftool-prog.rst.
>>>      """
>>> -    filename = os.path.join(BPFTOOL_DIR, 'Documentation/bpftool-prog.rst')
>>> +    filename = os.path.join(BPFTOOL_DIR, 'tools/bpf/bpftool/Documentation/bpftool-prog.rst')
>>>  
>>>      def get_attach_types(self):
>>>          return self.get_rst_list('ATTACH_TYPE')
>>>   
>>
>> No I don't believe it should. BPFTOOL_DIR already contains
>> 'tools/bpf/bpftool' and the os.path.join() concatenates the two path
>> fragments.
>>
>> Where is this suggestion coming from? Did you face an issue with the script?
> 
> No, I didn't face any issues with this script.
> 
> The suggestion cames from the script at:
> 
> 	./scripts/documentation-file-ref-check
> 
> which is meant to discover broken doc references. 
> 
> Such script has already a rule to handle stuff under tools/:
> 
> 		# Accept relative Documentation patches for tools/
> 		if ($f =~ m/tools/) {
> 			my $path = $f;
> 			$path =~ s,(.*)/.*,$1,;
> 			next if (grep -e, glob("$path/$ref $path/../$ref $path/$fulref"));
> 		}
> 
> but it seems it needs a fixup in order for it to stop reporting issues
> at test_bpftool_synctypes.py:
> 
> 	$ ./scripts/documentation-file-ref-check 
> 	...
> 	tools/testing/selftests/bpf/test_bpftool_synctypes.py: Documentation/bpftool-prog.rst
> 	tools/testing/selftests/bpf/test_bpftool_synctypes.py: Documentation/bpftool-map.rst
> 	tools/testing/selftests/bpf/test_bpftool_synctypes.py: Documentation/bpftool-cgroup.rst

Oh, I see, thanks for explaining. I didn't know this script would catch
the paths in bpftool's test file.

> 
> I'll drop the patches touching it for a next version, probably
> adding a fix for such script.
> 
> Thanks,
> Mauro
> 

Sounds good to me, thanks a lot!
Quentin

Re: [PATCH 08/24] tools: bpftool: update bpftool-prog.rst reference

[Mauro Carvalho Chehab]

Em Thu, 16 Sep 2021 11:57:51 +0100
Quentin Monnet <quentin@isovalent.com> escreveu:

> 2021-09-16 12:49 UTC+0200 ~ Mauro Carvalho Chehab
> <mchehab+huawei@kernel.org>
> > Hi Quentin,
> > 
> > Em Thu, 16 Sep 2021 10:43:45 +0100
> > Quentin Monnet <quentin@isovalent.com> escreveu:
> >   
> >> 2021-09-16 11:14 UTC+0200 ~ Mauro Carvalho Chehab
> >> <mchehab+huawei@kernel.org>  
> >>> The file name: Documentation/bpftool-prog.rst
> >>> should be, instead: tools/bpf/bpftool/Documentation/bpftool-prog.rst.
> >>>
> >>> Update its cross-reference accordingly.
> >>>
> >>> Fixes: a2b5944fb4e0 ("selftests/bpf: Check consistency between bpftool source, doc, completion")
> >>> Fixes: ff69c21a85a4 ("tools: bpftool: add documentation")    
> >>
> >> Hi,
> >> How is this a fix for the commit that added the documentation in bpftool?
> >>  
> >>> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> >>> ---
> >>>  tools/testing/selftests/bpf/test_bpftool_synctypes.py | 2 +-
> >>>  1 file changed, 1 insertion(+), 1 deletion(-)
> >>>
> >>> diff --git a/tools/testing/selftests/bpf/test_bpftool_synctypes.py b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
> >>> index be54b7335a76..27a2c369a798 100755
> >>> --- a/tools/testing/selftests/bpf/test_bpftool_synctypes.py
> >>> +++ b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
> >>> @@ -374,7 +374,7 @@ class ManProgExtractor(ManPageExtractor):
> >>>      """
> >>>      An extractor for bpftool-prog.rst.
> >>>      """
> >>> -    filename = os.path.join(BPFTOOL_DIR, 'Documentation/bpftool-prog.rst')
> >>> +    filename = os.path.join(BPFTOOL_DIR, 'tools/bpf/bpftool/Documentation/bpftool-prog.rst')
> >>>  
> >>>      def get_attach_types(self):
> >>>          return self.get_rst_list('ATTACH_TYPE')
> >>>     
> >>
> >> No I don't believe it should. BPFTOOL_DIR already contains
> >> 'tools/bpf/bpftool' and the os.path.join() concatenates the two path
> >> fragments.
> >>
> >> Where is this suggestion coming from? Did you face an issue with the script?  
> > 
> > No, I didn't face any issues with this script.
> > 
> > The suggestion cames from the script at:
> > 
> > 	./scripts/documentation-file-ref-check
> > 
> > which is meant to discover broken doc references. 
> > 
> > Such script has already a rule to handle stuff under tools/:
> > 
> > 		# Accept relative Documentation patches for tools/
> > 		if ($f =~ m/tools/) {
> > 			my $path = $f;
> > 			$path =~ s,(.*)/.*,$1,;
> > 			next if (grep -e, glob("$path/$ref $path/../$ref $path/$fulref"));
> > 		}
> > 
> > but it seems it needs a fixup in order for it to stop reporting issues
> > at test_bpftool_synctypes.py:
> > 
> > 	$ ./scripts/documentation-file-ref-check 
> > 	...
> > 	tools/testing/selftests/bpf/test_bpftool_synctypes.py: Documentation/bpftool-prog.rst
> > 	tools/testing/selftests/bpf/test_bpftool_synctypes.py: Documentation/bpftool-map.rst
> > 	tools/testing/selftests/bpf/test_bpftool_synctypes.py: Documentation/bpftool-cgroup.rst  
> 
> Oh, I see, thanks for explaining. I didn't know this script would catch
> the paths in bpftool's test file.
> 
> > 
> > I'll drop the patches touching it for a next version, probably
> > adding a fix for such script.
> > 
> > Thanks,
> > Mauro
> >   
> 
> Sounds good to me, thanks a lot!

The enclosed patch should do the trick.

> Quentin

Thanks,
Mauro

[PATCH] scripts: documentation-file-ref-check: fix bpf selftests path

tools/testing/selftests/bpf/test_bpftool_synctypes.py use
relative patches on the top of BPFTOOL_DIR:

	BPFTOOL_DIR = os.path.join(LINUX_ROOT, 'tools/bpf/bpftool')

Change the script to automatically convert:

	testing/selftests/bpf -> bpf/bpftool

In order to properly check the files used by such script.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/scripts/documentation-file-ref-check b/scripts/documentation-file-ref-check
index 7187ea5e5149..2d91cfe11cd2 100755
--- a/scripts/documentation-file-ref-check
+++ b/scripts/documentation-file-ref-check
@@ -144,6 +144,7 @@ while (<IN>) {
 		if ($f =~ m/tools/) {
 			my $path = $f;
 			$path =~ s,(.*)/.*,$1,;
+			$path =~ s,testing/selftests/bpf,bpf/bpftool,;
 			next if (grep -e, glob("$path/$ref $path/../$ref $path/$fulref"));
 		}
 

Re: [PATCH 08/24] tools: bpftool: update bpftool-prog.rst reference

[Quentin Monnet]

2021-09-16 13:30 UTC+0200 ~ Mauro Carvalho Chehab
<mchehab+huawei@kernel.org>

> [PATCH] scripts: documentation-file-ref-check: fix bpf selftests path
> 
> tools/testing/selftests/bpf/test_bpftool_synctypes.py use
> relative patches on the top of BPFTOOL_DIR:
> 
> 	BPFTOOL_DIR = os.path.join(LINUX_ROOT, 'tools/bpf/bpftool')
> 
> Change the script to automatically convert:
> 
> 	testing/selftests/bpf -> bpf/bpftool
> 
> In order to properly check the files used by such script.
> 
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> 
> diff --git a/scripts/documentation-file-ref-check b/scripts/documentation-file-ref-check
> index 7187ea5e5149..2d91cfe11cd2 100755
> --- a/scripts/documentation-file-ref-check
> +++ b/scripts/documentation-file-ref-check
> @@ -144,6 +144,7 @@ while (<IN>) {
>  		if ($f =~ m/tools/) {
>  			my $path = $f;
>  			$path =~ s,(.*)/.*,$1,;
> +			$path =~ s,testing/selftests/bpf,bpf/bpftool,;
>  			next if (grep -e, glob("$path/$ref $path/../$ref $path/$fulref"));
>  		}
>  
> 
> 
> 

I tested the patch and it works well on my side.

However, this looks a bit fragile to me. There is no particular reason
to have testing/selftests/bpf point to bpf/bpftool other than to
accommodate the current case, we could imagine other selftest files
pointing to other parts of the documentation in the future. I would
instead make an exception for test_bpftool_synctypes.py specifically
(other selftest files don't usually parse documentation anyway).
Alternatively, I would look at excluding lines where the path is used in
code (tricky to detect), maybe at least when used with os.path.join():

    next if ($ln =~ m,os\.path\.join\([^\,]*\,\s*['"]$fulref,);

But I'm not familiar with documentation-file-ref-check in the first
place, so these are just my two cents.

Thanks,
Quentin