Hi!

Here's a simpler implementation of the default arguments in strscpy(9).
It avoids having to build concatenated names, the ignored '...' in
__strscpy0, counting arguments, etc.  It's replaced by a quite simple
macro that takes two arguments, and picks the last non-empty one.

It requires a C23 feature, but it's supported as a GNU extension in
GNU C11 mode, and was implemented a long time ago, so it should be fine.


Have a lovely day!
Alex

Alejandro Colomar (2):
  args: Add DEFARG() to implement macro default arguments
  string: Simplify strscpy[_pad]()

 include/linux/args.h   |  5 +++++
 include/linux/string.h | 22 ++++------------------
 2 files changed, 9 insertions(+), 18 deletions(-)

Range-diff against v0:
-:  ------------ > 1:  be1057524eb2 args: Add DEFARG() to implement macro default arguments
-:  ------------ > 2:  31096484d9be string: Simplify strscpy[_pad]()
-- 
2.55.0