[PATCH] selinuxfs: remove custome hex_to_bin()

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Eric Paris <eparis@parisplace.org>
Cc: linux-security-module@vger.kernel.org
---
 security/selinux/selinuxfs.c |   14 ++++----------
 1 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 3545934..2aad7eb 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -752,14 +752,6 @@ out:
 	return length;
 }
 
-static inline int hexcode_to_int(int code) {
-	if (code == '\0' || !isxdigit(code))
-		return -1;
-	if (isdigit(code))
-		return code - '0';
-	return tolower(code) - 'a' + 10;
-}
-
 static ssize_t sel_write_create(struct file *file, char *buf, size_t size)
 {
 	char *scon = NULL, *tcon = NULL;
@@ -811,9 +803,11 @@ static ssize_t sel_write_create(struct file *file, char *buf, size_t size)
 			if (c1 == '+')
 				c1 = ' ';
 			else if (c1 == '%') {
-				if ((c1 = hexcode_to_int(*r++)) < 0)
+				c1 = hex_to_bin(*r++);
+				if (c1 < 0)
 					goto out;
-				if ((c2 = hexcode_to_int(*r++)) < 0)
+				c2 = hex_to_bin(*r++);
+				if (c2 < 0)
 					goto out;
 				c1 = (c1 << 4) | c2;
 			}
-- 
1.7.5.4