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From: Julia Lawall <julia.lawall@lip6.fr>
To: Joe Perches <joe@perches.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Peter Zijlstra <peterz@infradead.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Andy Whitcroft <apw@canonical.com>,
	yuankuiz@codeaurora.org, Linux PM <linux-pm@vger.kernel.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	paulmck@linux.vnet.ibm.com, Ingo Molnar <mingo@kernel.org>,
	Len Brown <len.brown@intel.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] checkpatch: Add a --strict test for structs with bool member definitions
Date: Thu, 12 Apr 2018 09:03:25 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.20.1804120901220.3559@hadrien> (raw)
In-Reply-To: <b2087cac13c3a1d01ebe1a17e66351f3777bc397.camel@perches.com>



On Wed, 11 Apr 2018, Joe Perches wrote:

> On Thu, 2018-04-12 at 08:22 +0200, Julia Lawall wrote:
> > On Wed, 11 Apr 2018, Joe Perches wrote:
> > > On Wed, 2018-04-11 at 09:29 -0700, Andrew Morton wrote:
> > > > We already have some 500 bools-in-structs
> > >
> > > I got at least triple that only in include/
> > > so I expect there are at probably an order
> > > of magnitude more than 500 in the kernel.
> > >
> > > I suppose some cocci script could count the
> > > actual number of instances.  A regex can not.
> >
> > I got 12667.
>
> Could you please post the cocci script?

Sure.

julia


Command line:
spatch.opt boolinstruct.cocci -j 40 --very-quiet --no-includes --include-headers /run/shm/linux-next --use-idutils

This was tested on:

struct foo {
  bool a;
  bool b,c;
  int r;
};

struct {
  bool a;
  bool b,c;
  int r;
} x;

----------------------

@initialize:ocaml@
@@
let ctr = ref 0

@r@
identifier i,x;
position p;
@@

struct i {
  ...
  bool x@p;
  ...
}

@script:ocaml@
_p << r.p;
@@

ctr := !ctr + 1

@s@
identifier x;
position p;
@@

struct {
  ...
  bool x@p;
  ...
}

@script:ocaml@
_p << s.p;
@@

ctr := !ctr + 1

@finalize:ocaml@
ctrs << merge.ctr;
@@

ctr := 0;
List.iter (function c -> ctr := !c + !ctr) ctrs;
Printf.printf "%d\n" !ctr

  reply	other threads:[~2018-04-12  7:03 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-10  7:33 Subject: [PATCH] [PATCH] time: tick-sched: use bool for tick_stopped yuankuiz
2018-04-10  7:45 ` yuankuiz
2018-04-10  8:51   ` yuankuiz
2018-04-10  8:54     ` yuankuiz
2018-04-10  7:55 ` Subject: [PATCH] " Thomas Gleixner
2018-04-10  8:12   ` yuankuiz
2018-04-10  8:00 ` Rafael J. Wysocki
2018-04-10  8:15   ` yuankuiz
2018-04-10  9:10     ` Thomas Gleixner
2018-04-10 10:07       ` yuankuiz
2018-04-10 11:06         ` Thomas Gleixner
2018-04-10 14:08           ` yuankuiz
2018-04-10 14:49             ` yuankuiz
2018-04-10 23:09               ` yuankuiz
2018-04-10 23:20                 ` yuankuiz
2018-04-20  1:47                   ` yuankuiz
2018-04-20  6:44                     ` yuankuiz
2018-04-20 19:24                       ` Joe Perches
2018-04-25  7:01                         ` yuankuiz
2018-04-10 11:26         ` Peter Zijlstra
2018-04-10 12:07           ` Thomas Gleixner
2018-04-10 12:26             ` Peter Zijlstra
2018-04-10 12:33   ` Subject: [PATCH] " Peter Zijlstra
2018-04-10 15:14     ` Joe Perches
2018-04-10 16:30       ` Peter Zijlstra
2018-04-10 15:41     ` [PATCH] checkpatch: whinge about bool bitfields Joe Perches
2018-04-10 18:19       ` [PATCH] checkpatch: Add a --strict test for structs with bool member definitions Joe Perches
2018-04-10 21:39         ` Andrew Morton
2018-04-10 21:53           ` Joe Perches
2018-04-10 22:00             ` Andrew Morton
2018-04-11  8:15               ` Peter Zijlstra
2018-04-11 16:29                 ` Andrew Morton
2018-04-11 16:51                   ` Joe Perches
2018-04-12  6:22                     ` Julia Lawall
2018-04-12  6:42                       ` Joe Perches
2018-04-12  7:03                         ` Julia Lawall [this message]
2018-04-12  8:13                         ` Peter Zijlstra
2018-04-14 21:19                         ` Julia Lawall
2018-04-17  9:07                           ` yuankuiz
2018-04-18 18:38                             ` Joe Perches
2018-04-19  4:40                               ` Julia Lawall
2018-04-19  4:51                                 ` Joe Perches
2018-04-19  5:16                                   ` Julia Lawall
2018-04-19  6:48                                     ` yuankuiz
2018-04-19 10:42                                       ` yuankuiz
2018-04-20  1:31                                         ` yuankuiz
2018-04-11 17:00                   ` Peter Zijlstra
2018-04-12  7:47                     ` Ingo Molnar
2018-04-12  8:11                       ` Peter Zijlstra
2018-04-12  9:35                       ` Andrea Parri
2018-04-12 11:50                         ` Peter Zijlstra
2018-04-12 12:01                           ` Joe Perches
2018-04-12 12:08                             ` Peter Zijlstra
2018-04-12 12:38                               ` Joe Perches
2018-04-12 16:47                               ` Andrew Morton
2018-04-12 11:52                         ` Kalle Valo

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