linux-kernel - Re: [PATCH] MISC: add const to bin

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Date:   Thu, 3 Aug 2017 09:27:57 +0200
From:   Jean Delvare <jdelvare@...e.de>
To:     Bhumika Goyal <bhumirks@...il.com>
Cc:     julia.lawall@...6.fr, arnd@...db.de, gregkh@...uxfoundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] MISC: add const to bin_attribute structures

On Wed,  2 Aug 2017 14:40:06 +0530, Bhumika Goyal wrote:
> Add const to bin_attribute structures as they are only passed to the
> functions sysfs_{remove/create}_bin_file. The arguments passed are of
> type const, so declare the structures to be const.
> 
> Done using Coccinelle.
> 
> @m disable optional_qualifier@
> identifier s;
> position p;
> @@
> static struct bin_attribute s@......};
> 
> @okay1@
> position p;
> identifier m.s;
> @@
> (
> sysfs_create_bin_file(...,&s@p,...)
> |
> sysfs_remove_bin_file(...,&s@p,...)
> )
> 
> @bad@
> position p!={m.p,okay1.p};
> identifier m.s;
> @@
> s@p
> 
> @change depends on !bad disable optional_qualifier@
> identifier m.s;
> @@
> static
> +const
> struct bin_attribute s={...};
> 
> Signed-off-by: Bhumika Goyal <bhumirks@...il.com>
> ---
>  drivers/misc/ds1682.c         | 2 +-
>  drivers/misc/eeprom/eeprom.c  | 2 +-
>  drivers/misc/eeprom/max6875.c | 2 +-
>  drivers/misc/pch_phub.c       | 2 +-
>  4 files changed, 4 insertions(+), 4 deletions(-)
> (...)

Reviewed-by: Jean Delvare <jdelvare@...e.de>

Thanks,
-- 
Jean Delvare
SUSE L3 Support