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Message-ID: <kk66bpxu56ok4lgoeltesbahtyfduggesny2prbtbmtchx5u6h@mtibrwmxaymr>
Date: Mon, 12 Feb 2024 08:32:46 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dio: make dio_bus_type const

On 12 Feb 11:44, Greg Kroah-Hartman wrote:
> On Sun, Feb 11, 2024 at 12:40:16PM -0300, Ricardo B. Marliere wrote:
> > Now that the driver core can properly handle constant struct bus_type,
> > move the dio_bus_type variable to be a constant structure as well,
> > placing it into read-only memory which can not be modified at runtime.
> > 
> > Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > Suggested-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > Signed-off-by: Ricardo B. Marliere <ricardo@...liere.net>
> > ---
> >  drivers/dio/dio-driver.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/dio/dio-driver.c b/drivers/dio/dio-driver.c
> > index 69c46935ffc7..2d9fa6011945 100644
> > --- a/drivers/dio/dio-driver.c
> > +++ b/drivers/dio/dio-driver.c
> > @@ -123,7 +123,7 @@ static int dio_bus_match(struct device *dev, struct device_driver *drv)
> >  }
> >  
> >  
> > -struct bus_type dio_bus_type = {
> > +const struct bus_type dio_bus_type = {
> >  	.name	= "dio",
> >  	.match	= dio_bus_match,
> >  	.probe	= dio_device_probe,
> > 
> 
> Don't you also have to change this in include/linux/dio.h?

Indeed, I missed it. Will send a v2, thank you.

> 
> thanks,
> 
> greg k-h

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