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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Cc: Yury Norov <yury.norov@gmail.com>,
	Lucas De Marchi <lucas.demarchi@intel.com>,
	Rasmus Villemoes <linux@rasmusvillemoes.dk>,
	Jani Nikula <jani.nikula@linux.intel.com>,
	Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	Tvrtko Ursulin <tursulin@ursulin.net>,
	David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org,
	dri-devel@lists.freedesktop.org,
	Andi Shyti <andi.shyti@linux.intel.com>,
	David Laight <David.Laight@aculab.com>,
	Jani Nikula <jani.nikula@intel.com>
Subject: Re: [PATCH v7 2/5] bits: introduce fixed-type BIT_U*()
Date: Mon, 24 Mar 2025 16:32:50 +0200	[thread overview]
Message-ID: <Z-FtEr31u0jmeSRX@smile.fi.intel.com> (raw)
In-Reply-To: <b7718c92-3934-4ce7-b9a1-0d8ac03dadc3@wanadoo.fr>

On Mon, Mar 24, 2025 at 11:16:30PM +0900, Vincent Mailhol wrote:
> On 24/03/2025 at 22:41, Andy Shevchenko wrote:
> > On Sat, Mar 22, 2025 at 06:23:13PM +0900, Vincent Mailhol via B4 Relay wrote:


...

> >> +/*
> >> + * Fixed-type variants of BIT(), with additional checks like GENMASK_TYPE(). The
> >> + * following examples generate compiler warnings due to shift-count-overflow:
> > 
> > "...due to -Wshift-count-overflow:" ?
> > 
> > Same idea — if you need a new version, since it's just a nit-pick.
> 
> If you want. I staged this change locally, so if there is a v8, it will
> be addressed. I applied the same to the previous patch which also
> mentioned shift-count-overflow without the -W prefix.
> 
> But honestly, I am not convinced of the added value. This is from Lucas
> original patch one year ago, and no one was bothered by this. IMHO, when
> writing:
> 
>   (...) generate compiler warnings due to shift-count-overflow:
> 
> I do not see where the ambiguity is. The sentence clearly say that this
> is a compiler warning, so with or without the -W prefix, the sentence is
> equally understandable.

As I marked, it's a nit-pick, but from my point of view the added value
is immediate: The reader can be sure that we are talking about a compiler
warning and not something else (C standard? some special term?). So it adds
more context and makes it clearer.

-- 
With Best Regards,
Andy Shevchenko



  reply	other threads:[~2025-03-24 14:33 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-22  9:23 [PATCH v7 0/5] bits: Fixed-type GENMASK_U*() and BIT_U*() Vincent Mailhol via B4 Relay
2025-03-22  9:23 ` [PATCH v7 1/5] bits: introduce fixed-type GENMASK_U*() Vincent Mailhol via B4 Relay
2025-03-24  7:22   ` Andy Shevchenko
2025-03-24  7:44     ` Vincent Mailhol
2025-03-22  9:23 ` [PATCH v7 2/5] bits: introduce fixed-type BIT_U*() Vincent Mailhol via B4 Relay
2025-03-24 13:41   ` Andy Shevchenko
2025-03-24 14:16     ` Vincent Mailhol
2025-03-24 14:32       ` Andy Shevchenko [this message]
2025-03-22  9:23 ` [PATCH v7 3/5] drm/i915: Convert REG_GENMASK*() to fixed-width GENMASK_U*() Vincent Mailhol via B4 Relay
2025-03-22  9:23 ` [PATCH v7 4/5] test_bits: add tests for GENMASK_U*() Vincent Mailhol via B4 Relay
2025-03-22  9:23 ` [PATCH v7 5/5] test_bits: add tests for BIT_U*() Vincent Mailhol via B4 Relay
2025-03-24 14:28 ` [PATCH v7 0/5] bits: Fixed-type GENMASK_U*() and BIT_U*() Yury Norov
2025-03-24 16:23   ` Vincent Mailhol
2025-03-25 15:23     ` Yury Norov
2025-03-25 16:13       ` Vincent Mailhol
2025-03-25 16:30         ` Yury Norov

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