[PATCH v1 0/2] kstrtox: make _parse_integer() flexible

[Andy Shevchenko]

Currently every new wrapper on _parse_integer_limit() will need a new name
to share with users while keeping some optional arguments to be initialised
explicitly. Since there is an attempt to expand this more, I decided to
suggest this mini series to avoid namespace pollution and unneeded churn in
the future.

To expand this API more, the possible future change may be:

 unsigned int _parse_integer_limit(const char *s, unsigned int base, unsigned long long *res,
-                                  size_t max_chars);
+                                  size_t max_chars, $new_opt_arg);

 #define _parse_integer0(s, base, res, ...)                                              \
-        _parse_integer_limit(s, base, res, INT_MAX);
+        _parse_integer_limit(s, base, res, INT_MAX, $new_opt_arg=$default);

 #define _parse_integer1(s, base, res, max_chars, ...)                                   \
-        _parse_integer_limit(s, base, res, max_chars);
+        _parse_integer_limit(s, base, res, max_chars, $new_opt_arg=$default);

+#define _parse_integer2(s, base, res, max_chars, new_opt_arg, ...)                      \
+        _parse_integer_limit(s, base, res, max_chars, new_opt_arg);

So you got the idea. (It is roughly overloaded function in OOP.)

Andy Shevchenko (2):
  kstrtox: Make _parse_integer() take variadic arguments
  vsprintf: Convert to use _parse_integer() instead of
    _parse_integer_limit()

 lib/kstrtox.c  |  6 ------
 lib/kstrtox.h  | 12 +++++++++++-
 lib/vsprintf.c |  2 +-
 3 files changed, 12 insertions(+), 8 deletions(-)

-- 
2.50.1