Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelv...

[linux.git] / lib / hexdump.c

diff --git a/lib/hexdump.c b/lib/hexdump.c
index 5d7a4802c5623c00056159735bf73d17165ba476..f5fe6ba7a3ab35f163a63c86e6cac8015a02be44 100644 (file)
--- a/lib/hexdump.c
+++ b/lib/hexdump.c
@@ -33,6 +33,22 @@ int hex_to_bin(char ch)
 }
 EXPORT_SYMBOL(hex_to_bin);
 
+/**
+ * hex2bin - convert an ascii hexadecimal string to its binary representation
+ * @dst: binary result
+ * @src: ascii hexadecimal string
+ * @count: result length
+ */
+void hex2bin(u8 *dst, const char *src, size_t count)
+{
+       while (count--) {
+               *dst = hex_to_bin(*src++) << 4;
+               *dst += hex_to_bin(*src++);
+               dst++;
+       }
+}
+EXPORT_SYMBOL(hex2bin);
+
 /**
  * hex_dump_to_buffer - convert a blob of data to "hex ASCII" in memory
  * @buf: data blob to dump
@@ -138,6 +154,7 @@ nil:
 }
 EXPORT_SYMBOL(hex_dump_to_buffer);
 
+#ifdef CONFIG_PRINTK
 /**
  * print_hex_dump - print a text hex dump to syslog for a binary blob of data
  * @level: kernel log level (e.g. KERN_DEBUG)
@@ -222,3 +239,4 @@ void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
                       buf, len, true);
 }
 EXPORT_SYMBOL(print_hex_dump_bytes);
+#endif