From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Tue, 15 Nov 2011 23:11:41 +0000 (-0800)
Subject: selinuxfs: remove custom hex_to_bin()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=af7ff2c2c45e6c6d533dd968709732da3d1d48f8;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

selinuxfs: remove custom hex_to_bin()

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Eric Paris <eparis@parisplace.org>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Morris <jmorris@namei.org>
---

diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index f46658722c78..48a7d0014b4f 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -749,14 +749,6 @@ 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;
@@ -808,9 +800,11 @@ 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;
 			}