linux-kernel - Re: [PATCH 9/9] treewide: Remove newlines inside DEFINE_PER

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Message-ID: <5628C913.10800@redhat.com>
Date:	Thu, 22 Oct 2015 07:31:31 -0400
From:	Prarit Bhargava <prarit@...hat.com>
To:	Michal Marek <mmarek@...e.com>
CC:	linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-ia64@...r.kernel.org, xen-devel@...ts.xenproject.org,
	linux-acpi@...r.kernel.org, rds-devel@....oracle.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH 9/9] treewide: Remove newlines inside DEFINE_PER_CPU()
 macros



On 10/21/2015 03:52 PM, Michal Marek wrote:
> Dne 21.10.2015 v 21:27 Prarit Bhargava napsal(a):
>> On 10/15/2015 04:16 PM, Michal Marek wrote:
>>> Otherwise make tags can't parse them:
>>>
>>> ctags: Warning: arch/ia64/kernel/smp.c:60: null expansion of name pattern "\1"
>>> ctags: Warning: drivers/xen/events/events_2l.c:41: null expansion of name pattern "\1"
>>> ctags: Warning: drivers/acpi/processor_idle.c:64: null expansion of name pattern "\1"
>>> ctags: Warning: kernel/locking/lockdep.c:153: null expansion of name pattern "\1"
>>> ctags: Warning: kernel/workqueue.c:305: null expansion of name pattern "\1"
>>> ctags: Warning: kernel/rcu/rcutorture.c:133: null expansion of name pattern "\1"
>>> ctags: Warning: kernel/rcu/rcutorture.c:135: null expansion of name pattern "\1"
>>> ctags: Warning: net/rds/page.c:45: null expansion of name pattern "\1"
>>> ctags: Warning: net/ipv4/syncookies.c:53: null expansion of name pattern "\1"
>>> ctags: Warning: net/ipv6/syncookies.c:44: null expansion of name pattern "\1"
>>
>> I guarantee you're going to end up fixing this issue over and over again as more
>> code is added in.
> 
> This is certainly going to happen, but it should be quickly spotted by
> anybody running make tags on linux-next. And 10 instances since the
> beginning of git is not too many.

Not everyone uses 'make tags'.  'make cscope' exists and functions correctly ;)

> 
> 
>> OOC, why not fix ctags to recognize newlines?
> 
> It's not ctags itself parsing the DEFINE_PER_CPU() macro, but a
> user-supplied regex specified on commandline. Which can only operate on
> single lines.
> 

What's the regex?

P.

> Michal
> 
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