Commit 890a3ee3 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Andrew Morton
Browse files

kernel.h: split the hexadecimal related helpers to hex.h 

For the sake of cleaning up the kernel.h split the hexadecimal related
helpers to own header called 'hex.h'.

Link: https://lkml.kernel.org/r/20230323155029.40000-1-andriy.shevchenko@linux.intel.com


Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 58c9b016

include/linux/hex.h

0 → 100644
+35 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _LINUX_HEX_H

#define _LINUX_HEX_H



#include <linux/types.h>



extern const char hex_asc[];

#define hex_asc_lo(x)	hex_asc[((x) & 0x0f)]

#define hex_asc_hi(x)	hex_asc[((x) & 0xf0) >> 4]



static inline char *hex_byte_pack(char *buf, u8 byte)

{

	*buf++ = hex_asc_hi(byte);

	*buf++ = hex_asc_lo(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;

}



extern int hex_to_bin(unsigned char ch);

extern int __must_check hex2bin(u8 *dst, const char *src, size_t count);

extern char *bin2hex(char *dst, const void *src, size_t count);



bool mac_pton(const char *s, u8 *mac);



#endif

include/linux/kernel.h

+1 −28
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ 
#include <linux/compiler.h>

#include <linux/container_of.h>

#include <linux/bitops.h>

#include <linux/hex.h>

#include <linux/kstrtox.h>

#include <linux/log2.h>

#include <linux/math.h>
@@ -263,34 +264,6 @@ extern enum system_states { 
	SYSTEM_SUSPEND,

} system_state;



extern const char hex_asc[];

#define hex_asc_lo(x)	hex_asc[((x) & 0x0f)]

#define hex_asc_hi(x)	hex_asc[((x) & 0xf0) >> 4]



static inline char *hex_byte_pack(char *buf, u8 byte)

{

	*buf++ = hex_asc_hi(byte);

	*buf++ = hex_asc_lo(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;

}



extern int hex_to_bin(unsigned char ch);

extern int __must_check hex2bin(u8 *dst, const char *src, size_t count);

extern char *bin2hex(char *dst, const void *src, size_t count);



bool mac_pton(const char *s, u8 *mac);



/*

 * General tracing related utility functions - trace_printk(),

 * tracing_on/tracing_off and tracing_start()/tracing_stop