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

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Message-ID: <20160421195329.GA10362@www.outflux.net>
Date:	Thu, 21 Apr 2016 12:53:29 -0700
From:	Kees Cook <keescook@...omium.org>
To:	James Morris <jmorris@...ei.org>
Cc:	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: [PATCH] fs: fix over-zealous use of "const"

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>
---
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