Re: nolibc and __attribute__((__unused__))

From: Paul E. McKenney
Date: Wed Jul 21 2021 - 16:53:35 EST


On Wed, Jul 21, 2021 at 10:39:16PM +0200, Willy Tarreau wrote:
> Hi Paul!
>
> On Wed, Jul 21, 2021 at 01:33:49PM -0700, Paul E. McKenney wrote:
> > Hello!
> >
> > My guess is that I should ignore the following checkpatch complaint on
> > the assumption that checkpatch doesn't realize that this is not built
> > as part of the Linux kernel. But if my guess is incorrect, please let
> > me know, as it is a trivial change to make.
> (...)
> > WARNING: __always_unused or __maybe_unused is preferred over __attribute__((__unused__))
> > #24: FILE: tools/include/nolibc/nolibc.h:2246:
> > +static __attribute__((unused))
>
> Yes you're totally right, we try to keep both trees in sync by minimizing
> the differences between the two, so as long as that doesn't become a
> problem I prefer to keep the warning than having to manually apply
> future patches due to context differences.

Very well, and I will continue to ignore this sort of warning from
checkpatch for nolibc files.

Thanx, Paul