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

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Message-ID: <20240809142106.15b916c1@canb.auug.org.au>
Date: Fri, 9 Aug 2024 14:21:06 +1000
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: "Paul E. McKenney" <paulmck@...nel.org>, Frederic Weisbecker
 <frederic@...nel.org>, Neeraj Upadhyay <neeraj.upadhyay@...nel.org>, Boqun
 Feng <boqun.feng@...il.com>, Uladzislau Rezki <urezki@...il.com>
Cc: Valentin Schneider <vschneid@...hat.com>, Linux Kernel Mailing List
 <linux-kernel@...r.kernel.org>, Linux Next Mailing List
 <linux-next@...r.kernel.org>
Subject: linux-next: build warning after merge of the rcu tree

Hi all,

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

Documentation/RCU/Design/Data-Structures/Data-Structures.rst
:992: ERROR: Malformed table.

+-----------------------------------------------------------------------+
| **Quick Quiz**:                                                       |
+-----------------------------------------------------------------------+
| Why not simply combine the ``->nesting`` and                 |
| ``->nmi_nesting`` counters into a single counter that just   |
| counts the number of reasons that the corresponding CPU is non-idle?  |
+-----------------------------------------------------------------------+
| **Answer**:                                                           |
+-----------------------------------------------------------------------+
| Because this would fail in the presence of interrupts whose handlers  |
| never return and of handlers that manage to return from a made-up     |
| interrupt.                                                            |
+-----------------------------------------------------------------------+

Introduced by commits

  a33d8a2e99da ("context_tracking, rcu: Rename struct context_tracking .dynticks_nesting into .nesting")
  14feb0ad0671 ("context_tracking, rcu: Rename struct context_tracking .dynticks_nmi_nesting into .nmi_nesting")

-- 
Cheers,
Stephen Rothwell

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