Re: [PATCH 00/49] DRM driver for Hikey 970

Another quick question:

Em Wed, 19 Aug 2020 19:35:58 +0200 Sam Ravnborg sam@ravnborg.org escreveu:

...

+#define DSS_REDUCE(x) ((x) > 0 ? ((x) - 1) : (x))

Use generic macros for this?

Do you know a generic macro similar to this? Or do you mean adding it to include/kernel.h?

There are the atomic sub ones, but doesn't make sense here.

The closest one I found was min_not_zero(), but this would take two args.

Btw, I agree that the name here is a bit odd... I would have called such macro as 'dec_not_zero()'.

Thanks, Mauro