Commit dc88e460 authored by Mimi Zohar's avatar Mimi Zohar Committed by James Morris

lib: hex2bin converts ascii hexadecimal string to binary

Similar to the kgdb_hex2mem() code, hex2bin converts a string
to binary using the hex_to_bin() library call.

- Replace parameter names with src/dst (based on David Howell's comment)
- Add 'const' where needed (based on David Howell's comment)
- Replace int with size_t (based on David Howell's comment)
Signed-off-by: default avatarMimi Zohar <>
Acked-by: default avatarSerge E. Hallyn <>
Acked-by: default avatarDavid Howells <>
Signed-off-by: default avatarJames Morris <>
parent ce6ada35
......@@ -265,6 +265,7 @@ static inline char *pack_hex_byte(char *buf, u8 byte)
extern int hex_to_bin(char ch);
extern void hex2bin(u8 *dst, const char *src, size_t count);
* General tracing related utility functions - trace_printk(),
......@@ -33,6 +33,22 @@ int hex_to_bin(char ch)
* 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++);
* hex_dump_to_buffer - convert a blob of data to "hex ASCII" in memory
* @buf: data blob to dump
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