linux-kernel - Re: [RFC v2 0/3] sparse: Introduce __private to privatize members of structs

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Date:	Mon, 4 Jan 2016 14:21:53 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Boqun Feng <boqun.feng@...il.com>
Cc:	linux-sparse@...r.kernel.org, linux-kernel@...r.kernel.org,
	Christopher Li <sparse@...isli.org>,
	Josh Triplett <josh@...htriplett.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Lai Jiangshan <jiangshanlai@...il.com>,
	Andy Whitcroft <apw@...onical.com>,
	Joe Perches <joe@...ches.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jiang Liu <jiang.liu@...ux.intel.com>,
	Marc Zyngier <marc.zyngier@....com>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Brian Norris <computersforpeace@...il.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [RFC v2 0/3] sparse: Introduce __private to privatize members of
 structs

On Tue, Dec 29, 2015 at 12:18:45PM +0800, Boqun Feng wrote:
> Hi all,
> 
> This is v2 of __private.
> 
> Link for v1: http://marc.info/?l=linux-sparse&m=144988906932520&w=2
> 
> Change since v1:
> 
> *	#undef __irqd_to_state after used (Peter Zijlstra)
> 
> 
> This patchset introduces a __private modifier for sparse to detect misuses of
> private members of structs. This could make maintenace a little easier and
> prevent some potential bugs.
> 
> 
> This patchset consists of three patches:
> 
> 1.	Introduce __private and related macro, also improve compiler.h a litte
> 	bit
> 
> 2.	Privatize rcu_node::lock
> 
> 3.	Privatize irq_common_data::state_use_accessors
> 
> This patchset is against
> 
> 	-rcu/rcu/next	c95a158356397844a5a6deb0bd58758084f891df
> 
> because it depends on commits:
> 	
> 	"rcu: Create transitive rnp->lock acquisition functions"
> and
> 	"rcu: Add transitivity to remaining rcu_node ->lock acquisitions
> 
> 
> Tested by 0day.
> 
> Looking forward to any suggestion, question and comment ;-)

Queued for review and testing, along with Thomas's Reviewed-by.  If all
goes well, I expect to send them upstream in the 4.6 merge window.

							Thanx, Paul

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