Subject: Re: [PATCH 9/9] treewide: Remove newlines inside DEFINE_PER_CPU() macros

From: Prarit Bhargava <[email-masked]>
Date: Thu, 22 Oct 2015 07:31:31 -0400

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