diff options
| author | Simon Glass <sjg@chromium.org> | 2021-07-24 18:03:29 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-08-02 20:32:14 +0300 |
| commit | 7e5f460ec457fe310156e399198a41eb0ce1e98c (patch) | |
| tree | 7e89e4d15fcea2d2263c4b4af1be69905537ef42 /include | |
| parent | 031725f8cdf33e836d19f35d3fe82c5baa5a2976 (diff) | |
| download | u-boot-7e5f460ec457fe310156e399198a41eb0ce1e98c.tar.xz | |
global: Convert simple_strtoul() with hex to hextoul()
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/vsprintf.h | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/include/vsprintf.h b/include/vsprintf.h index 4016de6677..5a268ab5cb 100644 --- a/include/vsprintf.h +++ b/include/vsprintf.h @@ -10,9 +10,34 @@ #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 * @param base The number base to use @@ -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 * |