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

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Date:   Mon, 23 Aug 2021 20:48:03 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Michael Ellerman <mpe@...erman.id.au>,
        PowerPC <linuxppc-dev@...ts.ozlabs.org>
Cc:     "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
        Daniel Henrique Barboza <danielhb413@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Jonathan Corbet <corbet@....net>
Subject: Re: linux-next: build warning after merge of the powerpc tree

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@...b.auug.org.au> wrote:
>
> After merging the powerpc tree, today's linux-next build (htmldocs)
> produced this warning:
> 

I missed a line:

Sphinx parallel build error:

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

I also get the following warning:

Documentation/powerpc/associativity.rst: WARNING: document isn't included in 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/powerpc/associativity.rst
index 07e7dd3d6c87..b77c6ccbd6cb 100644
--- a/Documentation/powerpc/associativity.rst
+++ b/Documentation/powerpc/associativity.rst
@@ -1,6 +1,6 @@
-============================
+===========================
 NUMA resource associativity
-=============================
+===========================
 
 Associativity represents the groupings of the various platform resources into
 domains of substantially similar mean performance relative to resources outside
@@ -20,11 +20,11 @@ A value of 1 indicates the usage of Form 1 associativity. For Form 2 associativi
 bit 2 of byte 5 in the "ibm,architecture-vec-5" property is used.
 
 Form 0
------
+------
 Form 0 associativity supports only two NUMA distances (LOCAL and REMOTE).
 
 Form 1
------
+------
 With Form 1 a combination of ibm,associativity-reference-points, and ibm,associativity
 device tree properties are used to determine the NUMA distance between resource groups/domains.
 
@@ -45,7 +45,7 @@ level of the resource group, the kernel doubles the NUMA distance between the
 comparing domains.
 
 Form 2
--------
+------
 Form 2 associativity format adds separate device tree properties representing 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 index value in

-- 
Cheers,
Stephen Rothwell

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