Re: [PATCH v4 0/8] bitops: let optimize out non-atomic bitops on compile-time constants

From: Alexander Lobakin
Date: Wed Jun 22 2022 - 10:38:18 EST


From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date: Wed, 22 Jun 2022 17:22:38 +0300

> On Wed, Jun 22, 2022 at 02:24:40PM +0200, Alexander Lobakin wrote:
> > From: Alexander Lobakin <alexandr.lobakin@xxxxxxxxx>
> > Date: Tue, 21 Jun 2022 21:15:45 +0200
> >
> > > While I was working on converting some structure fields from a fixed
> > > type to a bitmap, I started observing code size increase not only in
> > > places where the code works with the converted structure fields, but
> > > also where the converted vars were on the stack. That said, the
> > > following code:
> >
> > [...]
> >
> > Oh gosh, now s390 failed and 7/8 revealed one existing code flaw in
> > the ice driver.
> > I'll fix those, then will try to test more platforms (to not spam
> > series again) and send v5 soon (mentioning this as bots CCs only
> > myself).
>
> One mail per person? Because I also got a report.

>From the headers:

From: kernel test robot <lkp@xxxxxxxxx>
To: Alexander Lobakin <alexandr.lobakin@xxxxxxxxx>
Cc: <llvm@xxxxxxxxxxxxxxx>,
<kbuild-all@xxxxxxxxxxxx>,
<linux-kernel@xxxxxxxxxxxxxxx>,
Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

I guess it's due to your Reviewed-by in the commit message, no one
else from the original CCs list is present.

>
> --
> With Best Regards,
> Andy Shevchenko

Thanks,
Olek