linux-kernel - Re: [PATCH 0122/1285] Replace numeric parameter like 0444 with macro

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Date:	Tue, 2 Aug 2016 19:05:48 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	Alan Stern <stern@...land.harvard.edu>,
	Baole Ni <baolex.ni@...el.com>
Cc:	rjw@...ysocki.net, viresh.kumar@...aro.org,
	jarkko.sakkinen@...ux.intel.com, jgunthorpe@...idianresearch.com,
	hpa@...or.com, x86@...nel.org, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, chuansheng.liu@...el.com,
	peter@...sgaard.com, lee.jones@...aro.org
Subject: Re: [PATCH 0122/1285] Replace numeric parameter like 0444 with macro

On 08/02/2016, 03:57 PM, Alan Stern wrote:
>> --- a/drivers/cpufreq/powernow-k7.c
>> +++ b/drivers/cpufreq/powernow-k7.c
>> @@ -683,7 +683,7 @@ static void __exit powernow_exit(void)
>>  	cpufreq_unregister_driver(&powernow_driver);
>>  }
>>  
>> -module_param(acpi_force,  int, 0444);
>> +module_param(acpi_force,  int, S_IRUSR | S_IRGRP | S_IROTH);
> 
> This is an excellent example.  To me, 0444 is _much_ more readable and 
> understandable than S_IRUSR | S_IRGRP | S_IROTH.

If anything, that should be S_IRUGO. However, I personally prefer
numbers over macros too.

thanks,
-- 
js
suse labs