Commit c26d436c authored by Andre Naujoks's avatar Andre Naujoks Committed by David S. Miller

lib: introduce upper case hex ascii helpers

To be able to use the hex ascii functions in case sensitive environments
the array hex_asc_upper[] and the needed functions for hex_byte_pack_upper()
are introduced.
Signed-off-by: default avatarAndre Naujoks <>
Signed-off-by: default avatarDavid S. Miller <>
parent cc9fa74e
......@@ -439,6 +439,17 @@ static inline char *hex_byte_pack(char *buf, u8 byte)
return buf;
extern const char hex_asc_upper[];
#define hex_asc_upper_lo(x) hex_asc_upper[((x) & 0x0f)]
#define hex_asc_upper_hi(x) hex_asc_upper[((x) & 0xf0) >> 4]
static inline char *hex_byte_pack_upper(char *buf, u8 byte)
*buf++ = hex_asc_upper_hi(byte);
*buf++ = hex_asc_upper_lo(byte);
return buf;
static inline char * __deprecated pack_hex_byte(char *buf, u8 byte)
return hex_byte_pack(buf, byte);
......@@ -14,6 +14,8 @@
const char hex_asc[] = "0123456789abcdef";
const char hex_asc_upper[] = "0123456789ABCDEF";
* hex_to_bin - convert a hex digit to its real value
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