linux-kernel - Re: [PATCH v5 1/2] lib/test_bitops: Add benchmark test for fns()

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Date: Mon, 6 May 2024 20:08:41 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Nathan Chancellor <nathan@...nel.org>
Cc: Yury Norov <yury.norov@...il.com>, Miguel Ojeda <ojeda@...nel.org>, 
	Kuan-Wei Chiu <visitorckw@...il.com>, kernel test robot <lkp@...el.com>, llvm@...ts.linux.dev, 
	oe-kbuild-all@...ts.linux.dev, Nick Desaulniers <ndesaulniers@...gle.com>, 
	Bill Wendling <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 1/2] lib/test_bitops: Add benchmark test for fns()

On Mon, May 6, 2024 at 7:52 PM Nathan Chancellor <nathan@...nel.org> wrote:
>
> No, unused can be used with local variables, used cannot.

Yeah, sorry, I meant `used`, i.e. it is that one the one that
constraints the combination rather than `unused`.

>From a quick look at the links in `compiler_attributes.h`, `unused`
can also be applied to types, while `used` cannot -- it is another
difference, but your sentence above already implies it anyway. :)

Thanks for the correction!

Cheers,
Miguel