linux-kernel - Re: [PATCH] fs: fix over-zealous use of "const"

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Message-ID: <CAHp75Vd+OQ+4Htb9nbz0o30AT94_gzrOPV1TVHatS5tzKJFQxg@mail.gmail.com>
Date:	Fri, 22 Apr 2016 01:17:38 +0300
From:	Andy Shevchenko <andy.shevchenko@...il.com>
To:	Kees Cook <keescook@...omium.org>
Cc:	James Morris <jmorris@...ei.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Mimi Zohar <zohar@...ux.vnet.ibm.com>,
	Joe Perches <joe@...ches.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Serge E. Hallyn" <serge@...lyn.com>,
	Jonathan Corbet <corbet@....net>,
	Kalle Valo <kvalo@...eaurora.org>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Jiri Slaby <jslaby@...e.com>, Paul Moore <pmoore@...hat.com>,
	Stephen Smalley <sds@...ho.nsa.gov>,
	Casey Schaufler <casey@...aufler-ca.com>,
	Andreas Gruenbacher <agruenba@...hat.com>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Vitaly Kuznetsov <vkuznets@...hat.com>,
	linux-security-module <linux-security-module@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>
Subject: Re: [PATCH] fs: fix over-zealous use of "const"

On Thu, Apr 21, 2016 at 10:53 PM, Kees Cook <keescook@...omium.org> wrote:
> When I was fixing up const recommendations from checkpatch.pl, I went
> overboard. This fixes the warning (during a W=1 build):
>
> include/linux/fs.h:2627:74: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]
> static inline const char * const kernel_read_file_id_str(enum kernel_read_file_id id)
>
> Reported-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Signed-off-by: Kees Cook <keescook@...omium.org>

Will test next week if someone don't do that before.
Thanks.

> ---
> This is for linux-security next
> ---
>  include/linux/fs.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/linux/fs.h b/include/linux/fs.h
> index 518716b4834e..82f9a2db3b1a 100644
> --- a/include/linux/fs.h
> +++ b/include/linux/fs.h
> @@ -2610,7 +2610,7 @@ static const char * const kernel_read_file_str[] = {
>         __kernel_read_file_id(__fid_stringify)
>  };
>
> -static inline const char * const kernel_read_file_id_str(enum kernel_read_file_id id)
> +static inline const char *kernel_read_file_id_str(enum kernel_read_file_id id)
>  {
>         if (id < 0 || id >= READING_MAX_ID)
>                 return kernel_read_file_str[READING_UNKNOWN];
> --
> 2.6.3
>
>
> --
> Kees Cook
> Chrome OS & Brillo Security



-- 
With Best Regards,
Andy Shevchenko