linux-kernel - RE: [PATCH] ahci: Changing two module params with static and __read

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Date:	Wed, 18 Sep 2013 02:52:00 +0000
From:	"Liu, Chuansheng" <chuansheng.liu@...el.com>
To:	Joe Perches <joe@...ches.com>
CC:	"tj@...nel.org" <tj@...nel.org>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] ahci: Changing two module params with static and
 __read_mostly



> -----Original Message-----
> From: Joe Perches [mailto:joe@...ches.com]
> Sent: Wednesday, September 18, 2013 12:24 AM
> To: Liu, Chuansheng
> Cc: tj@...nel.org; linux-ide@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: Re: [PATCH] ahci: Changing two module params with static and
> __read_mostly
> 
> On Wed, 2013-09-18 at 00:48 +0800, Chuansheng Liu wrote:
> > Here module parameters ahci_em_messages and devslp_idle_timeout can
> > be set as static and __read_mostly.
> >
> > Signed-off-by: Liu, Chuansheng <chuansheng.liu@...el.com>
> > ---
> >  drivers/ata/libahci.c |    5 +++--
> >  1 file changed, 3 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
> []
> > @@ -189,14 +189,15 @@ struct ata_port_operations
> ahci_pmp_retry_srst_ops = {
> >  };
> >  EXPORT_SYMBOL_GPL(ahci_pmp_retry_srst_ops);
> >
> > -int ahci_em_messages = 1;
> > +static int ahci_em_messages __read_mostly = 1;
> 
> This one could also be converted to
> static bool ahci_em_messages __read_mostly = true;
> 
Thanks, will update one new patch.
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