Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Wed, 9 Nov 2022 13:16:02 +0530
From:   Deepak R Varma <drv@mailo.com>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     outreachy@lists.linux.dev, Sven Van Asbroeck <TheSven73@gmail.com>,
        linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] staging: fieldbus: replace snprintf in show functions
 with sysfs_emit
Message-ID: <Y2taurqOvGiPo3jB@qemulion>
References: <Y2tBJFSsyUzdb+eO@qemulion>
 <Y2tXEibm2QxH37FK@kroah.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <Y2tXEibm2QxH37FK@kroah.com>
Precedence: bulk

On Wed, Nov 09, 2022 at 08:30:26AM +0100, Greg Kroah-Hartman wrote:
> On Wed, Nov 09, 2022 at 11:26:52AM +0530, Deepak R Varma wrote:
> > The show() methods should only use sysfs_emit() when formatting values
> > to be returned to the user space.
> > Ref: Documentation/filesystems/sysfs.rst
> > Issue identified by coccicheck.
> >
> > Signed-off-by: Deepak R Varma <drv@mailo.com>
> >  	/*
> > -	 * card_name was provided by child driver, could potentially be long.
> > -	 * protect against buffer overrun.
> > +	 * sysfs provides PAGE_SIZE long buffer to take care of potentially
>
> No need to ever mention PAGE_SIZE at all, this comment should just be:
> 	/* card_name was provided by child driver */

Sure. I will update the comment in the revision.

>
> But the larger question is, why did you only convert one of the sysfs
> show functions in this file?  Why not do them all?

I was limiting it to what is reported by coccicheck. I will review other such
show functions and send a consolidated patch.

Thank you,
./drv

>
> thanks,
>
> greg k-h
>