Re: [PATCH v4 0/8] bitops: let optimize out non-atomic bitops on compile-time constants
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- To: Alexander Lobakin <alexandr.lobakin@xxxxxxxxx>
- Subject: Re: [PATCH v4 0/8] bitops: let optimize out non-atomic bitops on compile-time constants
- From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
- Date: Wed, 22 Jun 2022 17:22:38 +0300
- Cc: Arnd Bergmann <arnd@xxxxxxxx>, Yury Norov <yury.norov@xxxxxxxxx>, Mark Rutland <mark.rutland@xxxxxxx>, Matt Turner <mattst88@xxxxxxxxx>, Brian Cain <bcain@xxxxxxxxxxx>, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>, Yoshinori Sato <ysato@xxxxxxxxxxxxx>, Rich Felker <dalias@xxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, Kees Cook <keescook@xxxxxxxxxxxx>, "Peter Zijlstra (Intel)" <peterz@xxxxxxxxxxxxx>, Marco Elver <elver@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxx>, Tony Luck <tony.luck@xxxxxxxxx>, Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx>, Jesse Brandeburg <jesse.brandeburg@xxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, linux-alpha@xxxxxxxxxxxxxxx, linux-hexagon@xxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-m68k@xxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
- In-reply-to: <20220622122440.87087-1-alexandr.lobakin@intel.com>
- Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo
- References: <20220621191553.69455-1-alexandr.lobakin@intel.com> <20220622122440.87087-1-alexandr.lobakin@intel.com>
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.
--
With Best Regards,
Andy Shevchenko
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