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

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Date:   Mon, 23 Aug 2021 10:00:07 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build warning after merge of the ftrace tree

On Mon, 23 Aug 2021 19:58:04 +1000
Stephen Rothwell <sfr@...b.auug.org.au> wrote:

> Hi all,
> 
> After merging the ftrace tree, today's linux-next build (htmldocs)
> produced this warning:
> 
> Documentation/trace/histogram.rst:80: WARNING: Malformed table.
> Text in column margin in table line 8.
> 
> =========== ==========================================
> .hex        display a number as a hex value
> .sym        display an address as a symbol
> .sym-offset display an address as a symbol and offset
> .syscall    display a syscall id as a system call name
> .execname   display a common_pid as a program name
> .log2       display log2 value rather than raw number
> .buckets=size  display grouping of values rather than raw number
> .usecs      display a common_timestamp in microseconds
> =========== ==========================================
> 
> Introduced by commit
> 
>   370364351926 ("tracing/histogram: Update the documentation for the buckets modifier")
> 

Hi Stephen,

Does the below fix it?

-- Steve

diff --git a/Documentation/trace/histogram.rst b/Documentation/trace/histogram.rst
index 4e650671f245..533415644c54 100644
--- a/Documentation/trace/histogram.rst
+++ b/Documentation/trace/histogram.rst
@@ -70,16 +70,16 @@ Documentation written by Tom Zanussi
   modified by appending any of the following modifiers to the field
   name:
 
-	=========== ==========================================
-        .hex        display a number as a hex value
-	.sym        display an address as a symbol
-	.sym-offset display an address as a symbol and offset
-	.syscall    display a syscall id as a system call name
-	.execname   display a common_pid as a program name
-	.log2       display log2 value rather than raw number
+	=============  =================================================
+        .hex           display a number as a hex value
+	.sym           display an address as a symbol
+	.sym-offset    display an address as a symbol and offset
+	.syscall       display a syscall id as a system call name
+	.execname      display a common_pid as a program name
+	.log2          display log2 value rather than raw number
 	.buckets=size  display grouping of values rather than raw number
-	.usecs      display a common_timestamp in microseconds
-	=========== ==========================================
+	.usecs         display a common_timestamp in microseconds
+	=============  =================================================
 
   Note that in general the semantics of a given field aren't
   interpreted when applying a modifier to it, but there are some