linux-kernel - Re: [PATCH v2 03/45] notifier: Add atomic/blocking_notifier_has_unique

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Message-ID: <c5fb7590-03a7-0eea-4040-07472a5c9710@gmail.com>
Date:   Fri, 29 Oct 2021 00:32:37 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Lee Jones <lee.jones@...aro.org>,
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Subject: Re: [PATCH v2 03/45] notifier: Add
 atomic/blocking_notifier_has_unique_priority()

28.10.2021 14:00, Andy Shevchenko пишет:
> On Thu, Oct 28, 2021 at 12:16:33AM +0300, Dmitry Osipenko wrote:
>> Add atomic/blocking_notifier_has_unique_priority() helpers which return
>> true if given handler has unique priority.
> 
> ...
> 
>> +/**
>> + *	atomic_notifier_has_unique_priority - Checks whether notifier's priority is unique
>> + *	@nh: Pointer to head of the atomic notifier chain
>> + *	@n: Entry in notifier chain to check
>> + *
>> + *	Checks whether there is another notifier in the chain with the same priority.
>> + *	Must be called in process context.
>> + *
>> + *	Returns true if priority is unique, false otherwise.
> 
> Why this indentation?

This is the same doc-comment style used by this file in general. I
haven't tried to invent anything new.


> ...
> 
>> +	/*
>> +	 * This code gets used during boot-up, when task switching is
>> +	 * not yet working and interrupts must remain disabled.  At
> 
> One space is enough.

This comment is replicated multiple times over this source file. You can
find it before each down_write(). I borrowed the text as-is, for
consistency.