linux-kernel - Re: [PATCH v1 1/1] bitops: Share BYTES_TO

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Message-ID: <05febba8-49a5-5f9d-34b0-d85d976e1416@intel.com>
Date:   Wed, 6 Sep 2023 16:40:39 +0200
From:   Alexander Lobakin <aleksander.lobakin@...el.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
CC:     Yury Norov <yury.norov@...il.com>, Uros Bizjak <ubizjak@...il.com>,
        "Masami Hiramatsu (Google)" <mhiramat@...nel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-trace-kernel@...r.kernel.org>,
        "Steven Rostedt" <rostedt@...dmis.org>
Subject: Re: [PATCH v1 1/1] bitops: Share BYTES_TO_BITS() for everyone

From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Date: Thu, 31 Aug 2023 16:21:30 +0300

> On Fri, Aug 25, 2023 at 04:49:07PM +0200, Alexander Lobakin wrote:
>> From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
>> Date: Thu, 24 Aug 2023 15:37:28 +0300
>>
>>> It may be new callers for the same macro, share it.
>>>
>>> Note, it's unknown why it's represented in the current form instead of
>>> simple multiplication and commit 1ff511e35ed8 ("tracing/kprobes: Add
>>> bitfield type") doesn't explain that neither. Let leave it as is and
>>> we may improve it in the future.
>>
>> Maybe symmetrical change in tools/ like I did[0] an aeon ago?
> 
> Hmm... Why can't you simply upstream your version? It seems better than mine.

It was a part of the Netlink bigint API which is a bit on hold for now
(I needed this macro available treewide).
But I can send it as standalone if you're fine with that.

> 
>> [0]
>> https://github.com/alobakin/linux/commit/fd308001fe6d38837fe820427209a6a99e4850a8
> 

Thanks,
Olek