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global: Convert simple_strtoul() with hex to hextoul()

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It is a pain to have to specify the value 16 in each call. Add a new
hextoul() function and update the code to use it.

Add a proper comment to simple_strtoul() while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2021-07-24 09:03:29 -06:00
committed by Tom Rini
parent 031725f8cd
commit 7e5f460ec4
183 changed files with 692 additions and 659 deletions
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28
include/vsprintf.h
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@@ -10,8 +10,33 @@
#include <stdarg.h>
#include <linux/types.h>
/**
* simple_strtoul - convert a string to an unsigned long
*
* @param cp The string to be converted
* @param endp Updated to point to the first character not converted
* @param base The number base to use
* @return value decoded from string (0 if invalid)
*
* Converts a string to an unsigned long. If there are invalid characters at
* the end these are ignored. In the worst case, if all characters are invalid,
* 0 is returned
*/
ulong simple_strtoul(const char *cp, char **endp, unsigned int base);
/**
* hex_strtoul - convert a string in hex to an unsigned long
*
* @param cp The string to be converted
* @param endp Updated to point to the first character not converted
* @return value decoded from string (0 if invalid)
*
* Converts a hex string to an unsigned long. If there are invalid characters at
* the end these are ignored. In the worst case, if all characters are invalid,
* 0 is returned
*/
unsigned long hextoul(const char *cp, char **endp);
/**
* strict_strtoul - convert a string to an unsigned long strictly
* @param cp The string to be converted
@@ -30,9 +55,6 @@ ulong simple_strtoul(const char *cp, char **endp, unsigned int base);
*
* echo will append a newline to the tail.
*
* simple_strtoul just ignores the successive invalid characters and
* return the converted value of prefix part of the string.
*
* Copied this function from Linux 2.6.38 commit ID:
* 521cb40b0c44418a4fd36dc633f575813d59a43d
*