linux-kernel - Re: [PATCH v2 09/12] clocksource: add J-Core PIT/RTC driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <574084FF.1070901@landley.net>
Date:	Sat, 21 May 2016 10:55:43 -0500
From:	Rob Landley <rob@...dley.net>
To:	Rich Felker <dalias@...c.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:	linux-kernel@...r.kernel.org, linux-sh@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH v2 09/12] clocksource: add J-Core PIT/RTC driver

On 05/20/2016 10:15 PM, Rich Felker wrote:
> On Fri, May 20, 2016 at 04:01:56PM +0200, Daniel Lezcano wrote:
>>> +	return ((u64)sechi << 32 | seclo) * 1000000000 + nsec;
>>
>> s/1000000000/NSEC_PER_SEC/
...
>>> +	hwirq = irq_get_irq_data(pit_irq)->hwirq;
>>> +	enable_val = (1<<26) | ((hwirq&0x3c)<<18) | (hwirq<<12);
>>
>> Can you explain? (and replace litterals by macros).

  "Hiding numbers that are used just once into defines to put them
   out of sight does not really help readability." - Pavel Machek

  http://lkml.iu.edu/hypermail/linux/kernel/1407.1/00299.html

Rob