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Date: Mon, 23 Aug 2021 20:48:03 +1000
From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Michael Ellerman <mpe@ellerman.id.au>, PowerPC
 <linuxppc-dev@lists.ozlabs.org>
Subject: Re: linux-next: build warning after merge of the powerpc tree
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Hi all,

[cc'ing Jon in case he can fix the sphix hang - or knows anything about it]

On Mon, 23 Aug 2021 19:55:40 +1000 Stephen Rothwell <sfr@canb.auug.org.au> =
wrote:
>
> After merging the powerpc tree, today's linux-next build (htmldocs)
> produced this warning:
>=20

I missed a line:

Sphinx parallel build error:

> docutils.utils.SystemMessage: Documentation/powerpc/associativity.rst:1: =
(SEVERE/4) Title overline & underline mismatch.
>=20
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D
> NUMA resource associativity
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
>=20
> Introduced by commit
>=20
>   1c6b5a7e7405 ("powerpc/pseries: Add support for FORM2 associativity")
>=20
> There are other obvious problems with this document (but sphinx seems
> to have hung before it reported them).
>=20
> Like
>=20
> Form 0
> -----
>=20
> and
>=20
> Form 1
> -----
>=20
> and
>=20
> Form 2
> -------

I also get the following warning:

Documentation/powerpc/associativity.rst: WARNING: document isn't included i=
n any toctree

And applying the following patch is enough to allow sphinx to finish
(rather than livelocking):

diff --git a/Documentation/powerpc/associativity.rst b/Documentation/powerp=
c/associativity.rst
index 07e7dd3d6c87..b77c6ccbd6cb 100644
--- a/Documentation/powerpc/associativity.rst
+++ b/Documentation/powerpc/associativity.rst
@@ -1,6 +1,6 @@
-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D
+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D
 NUMA resource associativity
-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D
=20
 Associativity represents the groupings of the various platform resources i=
nto
 domains of substantially similar mean performance relative to resources ou=
tside
@@ -20,11 +20,11 @@ A value of 1 indicates the usage of Form 1 associativit=
y. For Form 2 associativi
 bit 2 of byte 5 in the "ibm,architecture-vec-5" property is used.
=20
 Form 0
------
+------
 Form 0 associativity supports only two NUMA distances (LOCAL and REMOTE).
=20
 Form 1
------
+------
 With Form 1 a combination of ibm,associativity-reference-points, and ibm,a=
ssociativity
 device tree properties are used to determine the NUMA distance between res=
ource groups/domains.
=20
@@ -45,7 +45,7 @@ level of the resource group, the kernel doubles the NUMA =
distance between the
 comparing domains.
=20
 Form 2
--------
+------
 Form 2 associativity format adds separate device tree properties represent=
ing NUMA node distance
 thereby making the node distance computation flexible. Form 2 also allows =
flexible primary
 domain numbering. With numa distance computation now detached from the ind=
ex value in

--=20
Cheers,
Stephen Rothwell

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