RE: [PATCH 34/36] tty: gdm724x: convert counts to size_t

From: David Laight
Date: Wed Aug 16 2023 - 05:22:06 EST


From: Jiri Slaby
> Sent: Wednesday, August 16, 2023 9:59 AM
...
> > 'Vote up' my patches to minmax.h that make this all work.
> > Then it won't care provided both values have the same signedness.
> > (or, with patch 5, are non-negative 31bit compile time constants.)
>
> Oh yeah, that [1] looks great. Why should one care in min(4096,
> sizeof()) after all…
>
> So what's the current status of those?

Waiting... :-(

The only comment is from Linus who really doesn't like the idea
that min(signed_var, 4u) should be the same as min(signed_var, 4).
I think he is ok with min(unsigned_var, 4) though.

The min_t(u16,...) I quoted from the console buffer code is
a real bug that was identified by someone else last week.

Really min_t() is just an accident waiting to happen.

David

>
> [1]
> https://lore.kernel.org/all/b4ce9dad748e489f9314a2dc95615033@xxxxxxxxxxxxxxxx/
>
> thanks,
> --
> js
> suse labs

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